An element of the rare earth family of metals. It has the atomic symbol Y, atomic number 39, and atomic weight 88.91. In conjunction with other rare earths, yttrium is used as a phosphor in television receivers and is a component of the yttrium-aluminum garnet (YAG) lasers.
Unstable isotopes of yttrium that decay or disintegrate emitting radiation. Y atoms with atomic weights 82-88 and 90-96 are radioactive yttrium isotopes.
Stable yttrium atoms that have the same atomic number as the element yttrium, but differ in atomic weight. Y-89 is the only naturally occurring stable isotope of yttrium.
Neodymium. An element of the rare earth family of metals. It has the atomic symbol Nd, atomic number 60, and atomic weight 144.24, and is used in industrial applications.
Lasers which use a solid, as opposed to a liquid or gas, as the lasing medium. Common materials used are crystals, such as YAG (YTTRIUM aluminum garnet); alexandrite; and CORUNDUM, doped with a rare earth element such as a NEODYMIUM; ERBIUM; or HOLMIUM. The output is sometimes additionally modified by addition of non-linear optical materials such as potassium titanyl phosphate crystal, which for example is used with neodymium YAG lasers to convert the output light to the visible range.
The use of photothermal effects of LASERS to coagulate, incise, vaporize, resect, dissect, or resurface tissue.
The coagulation of tissue by an intense beam of light, including laser (LASER COAGULATION). In the eye it is used in the treatment of retinal detachments, retinal holes, aneurysms, hemorrhages, and malignant and benign neoplasms. (Dictionary of Visual Science, 3d ed)
Erbium. An element of the rare earth family of metals. It has the atomic symbol Er, atomic number 68, and atomic weight 167.26.
Radiotherapy where cytotoxic radionuclides are linked to antibodies in order to deliver toxins directly to tumor targets. Therapy with targeted radiation rather than antibody-targeted toxins (IMMUNOTOXINS) has the advantage that adjacent tumor cells, which lack the appropriate antigenic determinants, can be destroyed by radiation cross-fire. Radioimmunotherapy is sometimes called targeted radiotherapy, but this latter term can also refer to radionuclides linked to non-immune molecules (see RADIOTHERAPY).
Methods of delivering drugs into a joint space.
Procedures performed to remove CAPSULE OPACIFICATION that develops on the POSTERIOR CAPSULE OF THE LENS following removal of a primary CATARACT.
Ytterbium. An element of the rare earth family of metals. It has the atomic symbol Yb, atomic number 70, and atomic weight 173. Ytterbium has been used in lasers and as a portable x-ray source.
A group of elements that include SCANDIUM; YTTRIUM; and the LANTHANOID SERIES ELEMENTS. Historically, the rare earth metals got their name from the fact that they were never found in their pure elemental form, but as an oxide. In addition they were very difficult to purify. They are not truly rare and comprise about 25% of the metals in the earth's crust.
Scandium. An element of the rare earth family of metals. It has the atomic symbol Sc, atomic number 21, and atomic weight 45.
Zirconium. A rather rare metallic element, atomic number 40, atomic weight 91.22, symbol Zr. (From Dorland, 28th ed)
Unstable isotopes of indium that decay or disintegrate emitting radiation. In atoms with atomic weights 106-112, 113m, 114, and 116-124 are radioactive indium isotopes.
An optical source that emits photons in a coherent beam. Light Amplification by Stimulated Emission of Radiation (LASER) is brought about using devices that transform light of varying frequencies into a single intense, nearly nondivergent beam of monochromatic radiation. Lasers operate in the infrared, visible, ultraviolet, or X-ray regions of the spectrum.
A synovial hinge connection formed between the bones of the FEMUR; TIBIA; and PATELLA.
A collective term for interstitial, intracavity, and surface radiotherapy. It uses small sealed or partly-sealed sources that may be placed on or near the body surface or within a natural body cavity or implanted directly into the tissues.
Small uniformly-sized spherical particles, of micrometer dimensions, frequently labeled with radioisotopes or various reagents acting as tags or markers.
The inner membrane of a joint capsule surrounding a freely movable joint. It is loosely attached to the external fibrous capsule and secretes SYNOVIAL FLUID.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
Devices for accelerating protons or electrons in closed orbits where the accelerating voltage and magnetic field strength varies (the accelerating voltage is held constant for electrons) in order to keep the orbit radius constant.
The formation of crystalline substances from solutions or melts. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
An allotropic form of carbon that is used in pencils, as a lubricant, and in matches and explosives. It is obtained by mining and its dust can cause lung irritation.
Lists of words, usually in alphabetical order, giving information about form, pronunciation, etymology, grammar, and meaning.
An element of the rare earth family of metals. It has the atomic symbol Ce, atomic number 58, and atomic weight 140.12. Cerium is a malleable metal used in industrial applications.
Lanthanum. The prototypical element in the rare earth family of metals. It has the atomic symbol La, atomic number 57, and atomic weight 138.91. Lanthanide ion is used in experimental biology as a calcium antagonist; lanthanum oxide improves the optical properties of glass.
Organic chemistry methodology that mimics the modular nature of various biosynthetic processes. It uses highly reliable and selective reactions designed to "click" i.e., rapidly join small modular units together in high yield, without offensive byproducts. In combination with COMBINATORIAL CHEMISTRY TECHNIQUES, it is used for the synthesis of new compounds and combinatorial libraries.
The aggregate enterprise of manufacturing and technically producing chemicals. (From Random House Unabridged Dictionary, 2d ed)
Elements, compounds, mixtures, or solutions that are considered severely harmful to human health and the environment. They include substances that are toxic, corrosive, flammable, or explosive.
Diseases caused by factors involved in one's employment.
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
Measuring instruments for determining the temperature of matter. Most thermometers used in the field of medicine are designed for measuring body temperature or for use in the clinical laboratory. (From UMDNS, 1999)
Imaging the temperatures in a material, or in the body or an organ. Imaging is based on self-emanating infrared radiation (HEAT WAVES), or on changes in properties of the material or tissue that vary with temperature, such as ELASTICITY; MAGNETIC FIELD; or LUMINESCENCE.
The measure of the level of heat of a human or animal.
Electric conductors through which electric currents enter or leave a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum.
Measurement of blood flow based on induction at one point of the circulation of a known change in the intravascular heat content of flowing blood and detection of the resultant change in temperature at a point downstream.

Effect of Er:YAG laser irradiation on acid resistance to bovine dentin in vitro. (1/142)

Resin bond strength to Er:YAG laser irradiated dentin has been reported to be lower than that of unlased dentin. The reasons have been much discussed, but not clarified. One hypothetical cause has been discussed that lased dentin is acid resistant, therefore, the etching effect of acid conditions decreases. The purpose of this study was to evaluate the acid resistance of laser-irradiated dentin and compare it with the dissolved mineral of Er:YAG laser irradiated dentin and unlased dentin. This experiment was a pilot study to assess the etching effect of pre-conditioner for resin bonding to lased dentin. Bovine dentin was irradiated by Er:YAG laser and immersed in 0.1 M lactic buffer solution (pH 4.0). The dissolved Ca and P in the solution were then both measured. Dissolved Ca from lased dentin was not significantly different from that coming from unlased dentin (p > 0.05). The molar ratio of Ca/P did not differ significantly between lased and unlased dentin, either (p > 0.05). Under FE-SEM view before immersion, the dentin surface was covered with a smear layer in unlased dentin, but this layer was not clearly observed in lased dentin. These results suggested that the lased dentin had little or no resistance to lactic buffer solution.  (+info)

Biokinetics of yttrium-90--labeled huBrE-3 monoclonal antibody. (2/142)

BACKGROUND: This study reports summary biokinetics for 17 patients treated with huBrE-3 antibody labeled with indium-111 ((111)In) and yttrium-90 ((90)Y) in a Phase I dose escalation trial. METHODS: Patients were infused with huBrE-3 antibody conjugated to 1-p-isothiocyanatobenzyl 3-methyl- and 1-p-isothiocyanatobenzyl 4-methyl-diethylenetriamine pentaacetic acid (MX-DTPA). The huBrE-3 was labeled with increasing amounts of (90)Y radioactivity according to the following activity regimen: 10 mCi/m(2), 20 mCi/m(2), 33 mCi/m(2), 50 mCi/m(2), and 70 mCi/m(2). In addition to the (90)Y activity, 3--5 mCi of (111)In was labeled to huBrE-3 to serve as an imaging agent. In characterizing the biokinetics of huBrE-3, serial urine and blood samples were acquired. Additionally, whole-body imaging using a scintillation camera was performed at four time points postinfusion. RESULTS: Cumulative urine data yielded a plot of total-body biologic excretion that was relatively flat. Total body regions of interest derived from nuclear medicine scintigrams decreased according to a monoexponential function with a slope slightly greater than the rate of physical decay. When physical decay was combined with the urine biologic excretion rate, the calculated rate of activity decrease was indistinguishable from the scintigraphic rate of decrease in total-body activity. CONCLUSIONS: The authors concluded from these observations that the radioactivity remains essentially inside the patient, that biologic excretion of activity from the total body is not appreciable, and that the path for biologic excretion of activity that does occur is via the urine. The half-time associated with the beta (slow) phase for extraction from the blood averages 40.5 hours. Since large amounts of radioactivity do not appear in the urine, and total-body activity is decreased approximately according to physical decay (64.1 hours), activity must pool elsewhere after leaving the blood. The logical place is the skeleton, with possible selective binding to the bone marrow. Bone marrow biopsies from 4 of 7 patients who consented to serial biopsies were supportive of this conclusion.  (+info)

Targeted radiotherapy with [(90)Y]-SMT 487 in mice bearing human nonsmall cell lung tumor xenografts induced to express human somatostatin receptor subtype 2 with an adenoviral vector. (3/142)

BACKGROUND: Novel approaches to increasing the therapeutic efficacy of targeted radiotherapy of cancer are required. One strategy to achieve this goal is to induce high-level expression of a receptor on the surface of tumor cells that can be targeted with a radiolabeled peptide. The objectives of this study were to 1) induce somatostatin receptor (SSTr2) expression in tumor cells using an adenovirus encoding the SSTr2 gene (AdSSTr2), 2) demonstrate tumor localization of [(111)In]-DTPA-D-Phe(1)-octreotide in AdSSTr2-injected tumors, and 3) show therapeutic efficacy with [(90)Y]-DOTA-D-Phe(1)-Tyr(3)-octreotide ([(90)Y]-SMT 487). METHODS: SSTr2 expression was validated in vitro by the binding and subsequent internalization of [(111)In]-DTPA-D-Phe(1)-octreotide (21.3% per mg of total protein) in A-427 cells infected with AdSSTr2. In vivo imaging confirmed 5- to 10-fold greater uptake 5.5 hours after intravenous administration of [(111)In]-DTPA-D-Phe(1)-octreotide in AdSSTr2-injected tumors relative to control tumors. For therapy studies, mice bearing established subcutaneous A-427 tumors were given two intratumoral injections of AdSSTr2 1 week apart, followed by an intravenous injection of 400 microCi or 500 microCi [(90)Y]-SMT 487 at 2 and 4 days after each adenoviral administration. Control animals either were not treated or were administered 500 microCi [(90)Y]-SMT 487 with no AdSSTr2 injection. RESULTS: These studies showed that untreated animals and animals treated with no virus and 500 microCi [(90)Y]-SMT 487 had median tumor quadrupling times of 16 and 25 days, respectively. Mice administered AdSSTr2 and either 400 microCi or 500 microCi of [(90)Y]-SMT 487 demonstrated significantly longer median tumor quadrupling times of 40 and 44 days, respectively (P < 0.02). CONCLUSIONS: These studies are the first to demonstrate in vivo therapeutic efficacy using a radiolabeled peptide targeted to a receptor expressed on the surface of tumor cells following gene transfer. Future studies will focus on the optimization of this approach.  (+info)

A study of cavity preparation by Er:YAG laser--observation of hard tooth structures by laser scanning microscope and examination of the time necessary to remove caries. (4/142)

The purpose of this study was to observe and measure the morphological changes that occur in the hard tissue after the application of Er:YAG laser. Another objective was to evaluate and compare the duration of application of both the laser apparatus and a conventional cutting device. In this study, sound and newly extracted carious tissues were used. The morphological changes in hard tooth structures produced by Er:YAG laser irradiation were examined by using a laser scanning microscope. Results showed that appropriate laser irradiation was 100 mJ/pulse for dentin, and 200 mJ/pulse for enamel. Also, the laser scanning microscope images were less damaged than the SEM images due to pretreatment of the specimens. The time taken to remove carious enamel by laser irradiation was slightly longer than the compared rotary cutting device; however, no differences between the two methods were observed in case of carious dentin removal.  (+info)

A study of cavity preparation by Er:YAG laser. Effects on the marginal leakage of composite resin restoration. (5/142)

The purpose of this study was to evaluate marginal leakage of composite resin restoration from cavities prepared by Er:YAG laser. The observation of the dentin surface after the application of laser irradiation was performed by LSM, the cutting surface showed a rough surface similar to scales, and exposed dentinal tubules were observed without striations or a smeared layer formation that were observed when using a rotary cutting device. Leakage tests revealed no significant differences in the marginal seal for both enamel and dentin between cavities prepared by Er:YAG laser irradiation and when using an air-turbine. In this study, the usefulness of cavity preparation by Er:YAG laser irradiation in composite resin restoration was suggested.  (+info)

ELECTROPHYSIOLOGY OF THE HUMAN HYPOPHYSIS. (6/142)

Electrical activity was recorded in the human hypophysis from the neurosecretory fibres of the posterior lobe. In seven patients undergoing trans-sphenoidal hypophysectomy, electrophysiological recording was carried out with a special fine-shielded bipolar concentric electrode with a tip diameter of 30 microns. The rate of unit impulses was modified by anesthetic agents and after intravenous injections of drugs acting at the hypothalamic level.This technique was used to detect the limit between the anterior and posterior lobe in order to perform a selective adeno-hypophysectomy by implantation of yttrium-90 seeds.  (+info)

Output energy changes of quartz contact probe for Er:YAG laser with tooth ablation. (7/142)

The purpose of this study was to examine the output energy changes of the contact probe for Er:YAG laser with tooth ablation and evaluate the effect of contact surface polishing on output energy. The Er:YAG laser was irradiated to enamel of extracted human incisors for 100 min (5 min x 20 times). The output energy of contact probes was measured every 5 min (n = 3). After 100 min, the contact surfaces were polished using silicon carbide paper up to #1500, and the output energy of the probe was measured. The contact surfaces of the probes were observed and analyzed using an EPMA. After 100 min, the output energy showed 49.4% of the energy of an unused probe. After the contact surfaces were polished to #1500, the output energy returned to 96.4% of baseline. It is suggested that the output energy of the contact probe decreased with tooth ablation, and polishing of the contact surface was effective to regain the energy.  (+info)

Nd:YAG laser ablation of enamel for orthodontic use: tensile bond strength and surface modification. (8/142)

To test the feasibility of Nd:YAG laser ablation for orthodontic use, bovine enamels were ablated at 2.5 and 3.5 W/pulse conditions. Orthodontic brackets were attached on the ablated enamel surface using a self-curing resin. For comparison, a 37% phosphoric acid solution was used to etch the enamel surface. The strength to detach the brackets was estimated for both surface treatments. Modifications of the enamel surfaces were also compared using a scanning electron microscope for both treatments. The tensile bond strengths from the laser-ablated enamels were significantly lower than that from the phosphoric acid-etched enamels. The higher laser power treatment gave a significantly higher bond strength average than with the lower laser power. The laser-ablated surfaces showed the formation of craters. The formation involved melting and solidification of enamel. Each crater had numerous micropores. Microscopically, the ablated surface was smooth, while much of the acid-etched surface contained numerous microspaces.  (+info)

TY - JOUR. T1 - Laboratory aspects of zirconia restorations. AU - Millen, Christopher. AU - Bhatia, Krishnakant. AU - Ibbetson, Richard. PY - 2012/6. Y1 - 2012/6. N2 - UNLABELLED: Zirconia restorations are now accepted and commonly prescribed in dentistry. However, these materials undergo hydrothermal ageing which can reduce their clinical performance. Appropriate handling is essential to limit the restorations susceptibility to low temperature degradation/ageing. Through appropriate clinical prescribing and laboratory manufacture, an aesthetic, strong and long-lasting restoration can be fabricated.CLINICAL RELEVANCE: This article will inform the reader about zirconia as a dental material as well as how best to handle a zirconia restoration.. AB - UNLABELLED: Zirconia restorations are now accepted and commonly prescribed in dentistry. However, these materials undergo hydrothermal ageing which can reduce their clinical performance. Appropriate handling is essential to limit the restorations ...
The production methods for dental ceramics have improved greatly over the years . Increased proportion of crystalline particles has led to higher resistance to functional loads, but also changed the optical properties of the material . An yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) popularly called zirconia has been the most common dental high-strength ceramic for some years. Y-TZP contains only polycrystalline particles in a metastable tetragonal crystal structure, and is the dental ceramic material with the highest fracture strength available today . Dental zirconias are mainly used for crowns, fixed dental prostheses and implant components. The strength of zirconia depends on the density of the polycrystalline particles and quality of the product . The manufacturing process among the zirconia restorations differs with regard to material composition, processing and machining process of the milling blanks . The machining process can be hard-machining or soft-machining. The ...
Yttrium sample, distilled yttrium, yttrium machined piece, yttrium dendrite crystals, etched yttrium, rolled yttrium, yttrium metal ingot, Yttriym foil.
Mucosal seal formation around dental abutments is critical to the successful integration of dental implants into the human oral cavity. No information exists for how clinically relevant polishing procedures for computer-aided design and computer-aided manufactured (CAD/CAM) zirconia abutments affects cellular responses important to mucosal seal formation. CAD/CAM zirconia was divided into four groups for clinically relevant polishing utilizing commercial polishing heads: control, coarse, coarse plus medium, and coarse plus medium plus fine. Surfaces were analyzed with scanning electron microscopy (SEM), atomic force microscopy (AFM), and optical profilometry (OP). Subsequently, human gingival fibroblasts (HGFs) were seeded onto the zirconia surfaces. Proliferation was measured via a quantitative SEM technique and focal adhesion kinase (FAK) phosphorylation status was measured by an enzyme-linked immunosorbent assay (ELISA). Results showed an increase in proliferation on all polished surfaces as compared
YB66 was discovered in 1960[17] and its structure was solved in 1969.[16] The structure is face-centered cubic, with space group Fm3c (No. 226), Pearson symbol cF1936 and lattice constant a = 2.3440(6) nm. There are 13 boron sites B1-B13 and one yttrium site. The B1 sites form one B12 icosahedron and the B2-B9 sites make up another icosahedron. These icosahedra arrange in a thirteen-icosahedron unit (B12)12B12 which is called supericosahedron. The icosahedron formed by the B1 site atoms is located at the center of the supericosahedron. The supericosahedron is one of the basic units of the boron framework of YB66. There are two types of supericosahedra: one occupies the cubic face centers and another, which is rotated by 90°, is located at the center of the cell and at the cell edges. Thus, there are eight supericosahedra (1248 boron atoms) in the unit cell.[15] Another structure unit of YB66 is B80 cluster of 80 boron sites formed by the B10 to B13 sites.[15] All those 80 sites are partially ...
YTTRIUM [symbol, Y; atomic weight, 89.0 (O = 16)], a metallic chemical clement. In its character yttrium is closely allied to, and in nature is always associated with, cerium, lanthanum, didymium and erbium (see Rare Earths). For the preparation of yttrium compounds the best raw material is gadolinite, which, according to König, consists of 22.61% of silica, 34.64 of yttria, Y2O3, and 42.75 of the oxides of erbium, cerium, didymium, lanthanum, iron, beryllium, calcium, magnesium and sodium. The extraction (as is the case with all the rare earths) is a matter of great difficulty. Metallic yttrium is obtainable as a dark grey powder by reducing the chloride with potassium, or by electrolysing the double chloride of yttrium and sodium. It decomposes water slowly in the cold, and more rapidly on heating. Yttria, Y2O3, is a yellowish white powder, which at high temperatures radiates out a most brilliant while light. It is soluble, slowly but completely, in mineral acids. It is recognized by its very ...
Purpose: To determine the degree of conversion (DC), physicochemical properties, and microshear bond strength (mu SBS) of experimental self-adhesive resin cements (SARCs) to dentin and yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) ceramic. Materials and Methods: Dual-curing cements were formulated with UDMA, HEMA, bis-GMA, and TEG-DMA as the organic matrix. 2MP (bis 2-(methacryloyloxy)-ethyl-phosphate) and GDMAP (1,3-glycerol dimethacrylate phosphate) were added to impart self-adhesive characteristics. A control group was formulated without self-etch methacrylates. Silanized particles were incorporated. Photoactivation was carried out using an LED light-curing unit (1200 mW/cm(2)) for 20 s. Infrared spectroscopy assessed the DC immediately and after 24 h. pH was analyzed in real time and recorded after 48 h. Water sorption (W-sp), water solubility (W-sl), and film thickness measurements followed ISO 4049. mu SBS of the cements to dentin and Y-TZP was evaluated immediately and after 3 ...
TY - JOUR. T1 - Low-temperature performance of yttria-stabilized zirconia prepared by atomic layer deposition. AU - Jang, Dong Young. AU - Kim, Ho Keun. AU - Kim, Jun Woo. AU - Bae, Kiho. AU - Schlupp, Meike V F. AU - Park, Suk Won. AU - Prestat, Michel. AU - Shim, Joon Hyung. PY - 2015/1/15. Y1 - 2015/1/15. N2 - We report on the performance of thin-film yttria-stabilized zirconia (YSZ) synthesized by atomic layer deposition (ALD) at temperatures of 50-525 °C. Electrochemical impedance spectroscopy (EIS) was used for conductivity measurements. Relatively high conductivity values were observed in the low-temperature region when compared to reference values of YSZ synthesized by other methods. To investigate the conduction mechanism, various experimental variables were modified during the electrical measurements, including the ratio of yttria to zirconia in the ALD YSZ films and the atmospheric conditions. To relate the electrical properties to the structural characteristics, the crystallinity ...
Ceramic abrasive grits comprising alpha alumina and at least about 0.5 percent by weight yttria are prepared by mixing an aqueous dispersion of alpha alumina monohydrate and yttrium compound, gelling the resultant mixture, drying the gel to produce a dried solid, crushing the dried material to produce grits, calcining the dried grits to substantially remove bound volatile materials, and firing the grits to produce a ceramic material. The yttrium for the most part is in the form of a yttrium aluminum garnet. Abrasive products comprising the abrasive grits are also claimed as is a method of grinding a workpiece with such abrasive products.
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Calcium silicide (CaSi2), also called calcium disilicide, is an inorganic compound, a silicide of calcium. It is a whitish or dark grey to black solid matter with melting point 1033 °C. It is insoluble in water, but may decompose when subjected to moisture, evolving hydrogen and producing calcium hydroxide. Decomposes in hot water. It is flammable and may ignite spontaneously in air. Its CAS number is 12013-56-8. Industrial calcium silicide usually contains iron and aluminium as the primary contaminants, and low amounts of carbon and sulfur. Calcium silicide is used for manufacture of special metal alloys, e.g. for removing phosphorus and as a deoxidizer. In pyrotechnics, it is used as fuel to make special mixtures, e.g. for production of smokes, in flash compositions, and in percussion caps. Specification for pyrotechnic calcium silicide is MIL-C-324C. In some mixtures it may be substituted with ferrosilicon. Silicon-based fuels are used in some time delay mixtures, e.g. for controlling of ...
Yttrium Chloride (YCl3.6H2O) Powder - Yttrium(III) chloride is an inorganic compound of yttrium and chloride. It exists in two forms, hydrate (YCl3(H2O)6) an...
Get information, facts, and pictures about yttrium at Encyclopedia.com. Make research projects and school reports about yttrium easy with credible articles from our FREE, online encyclopedia and dictionary.
Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Easily share your publications and get them in front of Issuus millions of monthly readers. Title: A Holistic Framework on Information Systems Evaluation with a Case Analysis, Author: Academic Conferences and publishing International, Name: A Holistic Framework on Information Systems Evaluation with a Case Analysis, Length: 8 pages, Page: 1, Published: 2011-04-17
PubMed Central Canada (PMC Canada) provides free access to a stable and permanent online digital archive of full-text, peer-reviewed health and life sciences research publications. It builds on PubMed Central (PMC), the U.S. National Institutes of Health (NIH) free digital archive of biomedical and life sciences journal literature and is a member of the broader PMC International (PMCI) network of e-repositories.
Abstract Objectives The purpose of this in vitro study was to compare the centric and eccentric quasi-static and fatigue fracture strength of industrially prefabricated resin-bonded three-unit inlay-retained fixed dental prostheses (IPIRFDPs). The IPIRFDPs consisted of industrial manufactured yttria-stabilized tetragonal zirconia (Y-TZP) frameworks with an industrially added microhybrid composite veneering. Methods Identical IPIRFDP-models consisted of a…
Yttrium oxide, also known as yttria, is Y2O3. It is an air-stable, white solid substance. Yttrium oxide is used as a common starting material for both materials science as well as inorganic compounds Y2O3 is widely used to make Eu:YVO4 and Eu:Y2O3...
Feature of Silicide aluminum powder Item Appearance Si Average size AlSi2 black powder 50-51% 1-10um 99.5% 、60-325mesh 99.5% or custom-made Application of Silicide aluminum powder Used as powder metallurgy raw materials, aluminum silicide at high temperat
Hi all -- I asked Jun to clarify his nickel silicide process as follow up to his request a couple of weeks ago and his original request in July. Attached here is the proposed flow. I spoke with Jim McV and Jun about this. Jun agrees that he will do all the wet cleans in his own decontaminated lab ware at wbgeneral. This should, we hope, address concerns about possible contamination in the wet benches. If Ive understood correctly, this is what Jim McV recommends: Ni dep - SCT -- Jun will have to work with Ed on this. Anneal - AG4108 -- this is OK if metal silicide quartzware is used LTO dep - OK on the metal side Contact etch - OK on the amtetcher Al deposition - OK on the gryphon if pre-dep etch is not used (will have to check with Jun) The remaining issues (which I neglected to ask Jun or Jim): P5000 Al etch -- is this OK? (Presumably, no nickel silicide is exposed?) Plasma O2 clean - where? (Im presuming this is necessary) Al dep - check if Jun needs pre-dep etch How does this sound so far? ...
Here, we perform molecular dynamics simulation on cubic ZrO 2 and yttria-stabilized zirconia (YSZ) to elucidate defect cluster formation resulting from radiation damage, and evaluate the impact of Y-dopants. Interstitial clusters composed of split-interstitial building blocks, i.e., Zr-Zr or Y-Zr are formed. Moreover, oxygen vacancies control cation defect migration; in their presence, Zr interstitials aggregate to form split-interstitials whereas in their absence Zr interstitials remain immobile, as isolated single-interstitials. Y-doping prevents interstitial cluster formation due to sequestration of oxygen vacancies. ...
Background: Dental caries is a multifactorial disease in which microorganisms play an important role. Recently, herbs have been tried as mouthrinses to combat the side effects of chemical mouthrinses. The anticaries efficacy of Sodium fluoride, Tulsi leaf, and Black myrobalans fruit extracts on Streptococcus mutans (S. mutans) have been reported in the literature, but no comparative study has been done yet. Aim: This study aims to observe the change in the pH of saliva and to assess the efficacy of the herbal rinses-Tulsi and Black myrobalans on S. mutans count while comparing it with Sodium fluoride mouthrinse. Methods: Herbal ethanolic extracts of Tulsi (4%) and Black myrobalans (2.5%) were prepared as mouthrinses and compared with sodium fluoride mouthrinse (0.05%). Sixty high caries risk patients were selected and allocated randomly into three groups [n = 20], categorized as Group A-Sodium fluoride mouthrinse, Group B-Tulsi mouthrinse, and Group C-Black myrobalans mouthrinse. They were ...
MemPro manufactures ceramic nanofibers, polymer nanofibers, and catalyst products.. Our products are never seen by the end-user but their benefits are distinguished in our customers products. Our products strengthen, protect, clean, functionalize, and enhance. With very large surface-area-to-volume ratios, mechanical strength, chemical resistance, heat tolerance, and selective filtration, our ceramic nanofibers possess all of the beneficial characteristics of advanced materials. This translates into improved performance and cost-savings while bridging the gap between conceptual ideas and products.. We continually work with customers to develop and supply new materials for innovative technologies. MemPro produces the highest quality materials backed by unrivaled knowhow.. ...
Jayasingh, EM and Tantria, TA and Bhaskaran, TA and Biswas, SK and Ramasesha, Sheela K (2002) Performance of monolithic and TiBlt;subgt;2lt;/subgt; reinforced MoSilt;subgt;2lt;/subgt; in dry sliding contact with steel. Materials Letters, 53 (4-5). pp. 379-383. Tantri, PS and Jayasingh, EM and Biswas, SK and Ramasesha, Sheela K (2002) Role of in situ generated tribofilm on the tribological characteristics of monolith and TiB2 reinforced MoSi2 intermetallic. Materials Science and Engineering A, 336 (1amp;2). pp. 64-71. Mitra, Nibedita and Vijayan, Kalyani and Bai Pramila, BN and Biswas, SK (1995) Phase Transformation Introduced by Mechanical and Chemical Surface Preparations of Tetragonal Zirconia Polycrystals. Journal of the American Ceramic Society, 76 (2). pp. 533-535. Biswas, SK and Vijayan, Kalyani (1992) Friction and wear of PTFE-a review. Wear, 158. pp. 193-211. Vijayan, Kalyani and Biswas, SK (1991) Wear of polytetrafluoroethylene: some crystallographic observations. Wear, 150. pp. ...
Free Essay: Theoretical Framework on Domestic Violence Theoretical Framework Domestic Violence among Women and Children A Theoretical Framework are theories...
Oxidation of FeCrAl(Re), when exposed to similar to 35 ppm of water as sole supply of oxygen in predominantly nitrogen atmosphere, has two characteristic signatures. One is the internal nitridation owing to chromia nodules acting windows toward nitrogen permeation locally short-circuiting the protective alpha-Al2O3 scale. The second remarkable feature is the growth of thick, apparently defect-rich alumina scale under yttria-rich nodules. Hence, one part of the present study comprises exploratory DFT calculations to discriminate between the impacts of chromia and yttria viz. nitrogen permeation. The second part concerns boundary conditions for apparent rapid growth of alumina under yttria nodules. Yttria-associated surface energy stabilization of defect-rich alumina in presence of water was argued to involve hydrolysis-driven hydroxylation of said interface. Subsequent inward growth of the alumina scale was associated with outward diffusion of oxygen vacancies to be accommodated by the remaining proton
The invented method can be used to form silicide contacts to an integrated MISFET device. Field isolation layers are formed to electrically isolate a portion of the silicon substrate, and gate, source and drain regions are formed therein. A polysilicon runner(s) that makes an electrical connection to the integrated device, is formed on the isolation layers. The structure is subjected to ion implantation to amorphized portions of the silicon gate, source, drain and runner regions. A metal layer is formed in contact with the amorphized regions, and the metal layer overlying the active region of the integrated device is selectively irradiated using a mask. The light melts part of the gate, and amorphized source and drain regions while the remaining portions of the integrated device and substrate remain in their solid phases. Metal diffuses into the melted gate, source and drain regions which are thus converted into respective silicide alloy regions. Preferably, during selective irradiation, a portion of
Plasma spray forming ceramic components on a mandrel provides a way of net shape forming of difficult to machine materials. In addition, the structure of plasma sprayed ceramics contains fine porosity that improves strain accommodation as compared to sintered ceramics. However, plasma spray forming causes complex stress states in materials that may lead to cracking during spraying or during separation from the mandrel. Monitoring surface temperatures by infrared videography and controlling deposit surface temperature by directed cooling can be used to minimize thermal gradients and minimize part cracking. Control of thermal stresses is also necessary for proper separation of the sprayed part from the mandrel. Details of the plasma spray forming of yttrium oxide crucibles show how temperature monitoring, directed cooling, and robot manipulation are used to produce a crack free crucible.. ...
Alfa Aesar™ Yttrium(III) oxide sputtering target, 76.2mm (3.0 in.) dia. x 6.35mm (0.250 in.) thick, 99.99% (metals basis) 1 each Alfa...
To see a rotating video of (almost) any of the samples of Yttrium from The Elements, click it below. Links will open in a new window ...
In this report, the global Yttrium market is valued at USD XX million in 2016 and is expected to reach USD XX million by the end of 2022, growing at
Swedish chemist Carl Gustaf Mosander discovered terbium in 1843. He detected it as an impurity in yttrium oxide, Y2O3. Yttrium is named after the village of Ytterby in Sweden. Terbium was not isolated in pure form until the advent of ion exchange techniques.[13]. Mosander first separated yttria into three fractions, all named for the ore: yttria, erbia, and terbia. Terbia was originally the fraction that contained the pink color, due to the element now known as erbium. Erbia (containing what we now call terbium) originally was the fraction that was essentially colorless in solution. The insoluble oxide of this element was noted to be tinged brown. Later workers had difficulty in observing the minor colorless erbia, but the soluble pink fraction was impossible to miss. Arguments went back and forth as to whether erbia even existed. In the confusion, the original names got reversed, and the exchange of names stuck, so that the pink fraction referred eventually to the solution containing ...
Presented here is a chiral microporous metal-organic framework material with a three-fold interpenetrating diamond-type structural topology and interesting properties for selective separation. The material has a high storage capacity for CO2 gas (4.23 mmol g−1 at 273 K and 1 bar) and shows fantastic temperature-dependent selectivity for CO2 over N2. Moreover, this multifunctional material, which has a rich π system, can selectively adsorb benzene over cyclohexane at low pressure (0.05 bar) at 298 K. ...
The present invention relates to, preferably coordinated to, metal ions for absorbing, or storing, or releasing, or absorbing and storing, or absorbing and releasing, or storing and releasing or absorbing, storing and releasing one or more gases. A method of using a metal organic framework material comprising at least one coordinating organic compound, at least one metal ion and a void, and a fuel cell comprising the material for this purpose.
The Influence of Silicon and Silicides on the Properties of Near-Alpha Titanium Alloys Neal, D. F.; Fox, S. P.; The Minerals, Metals and Materials Society ...
Magnesium Silicide (Mg2Si) Sputtering Targets. Stanford Materials Corporation (SMC) offers innovative solutions for optimal sputtering results and an efficient coating process.
This report examines international trade and worldwide market trends pertaining to hydrides, nitrides, azides, silicides and borides. The report will
Page contains details about NaYF4:Yb3+,[email protected]@NaYF4:Nd3+ core/shell/shell nanocrystals . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
This 2017 report sets out recommendations for branch mismatch rules that would bring the treatment of these structures into line with the treatment of hybrid mismatch arrangements as set out in the 2015 Report on Neutralising the Effects of Hybrids Mismatch Arrangements (Action 2 Report). Branch mismatches arise where the ordinary rules for allocating income and expenditure between the branch and head office result in a portion of the net income of the taxpayer escaping the charge to taxation in both the branch and residence jurisdiction. Unlike hybrid mismatches, which result from conflicts in the legal treatment of entities or instruments, branch mismatches are the result of differences in the way the branch and head office account for a payment made by or to the branch. The 2017 report identifies five basic types of branch mismatch arrangements that give rise to one of three types of mismatches: deduction / no inclusion (D/NI) outcomes, double deduction (DD) outcomes, and indirect deduction / no
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I...dont recall Zirconia being an older version of Nehellenia. In the anime she was born from Nehellenias dreams or something like that, and in the manga she seemed fairly separate from her. I mean, she showed up after Nehellenia had been destroyed &c...or am I confused? [[User:Kerochan no Miko,Kerochan no Miko]] 00:31, 1 December 2006 (MST) :I dont remember about the manga. In the anime she was Nehelennias... well, deepest fear, her nightmare of old age and ugliness, given form through her mirror. (Cf. the aged Nehelennia in ep. 166.) Its still pretty bizarre that Zirconia could be manifested from her guts, though... --[[User:Rosen,Rosen]] 01:03, 1 December 2006 (MST) ::She saw Zirconia in her mirror as her old self, and Zirconia disappeaed when she came out of the mirror. In the manga, she transformed into a Zirconia-like body when she was being defeated. Just before being sealed into the mirror. *read it recently* - [[User:Sailor Biccy,Sailor Biccy]] 08:56, 1 December 2006 (MST) :::I ...
A composite thermal barrier coating for a substrate has a first layer including a first ceramic material and a second layer including a second ceramic material impregnated with a glass, the glass being a ternary eutectic. The glass may consist of about 14.6 weight percent Al.sub.2 O.sub.3, about 23.3 weight percent CaO, and about 62.1 weight percent SiO.sub.2. The first and second ceramic materials may include yttria-stabilized zirconia.
ESPI High Purity Metal Specialists since 1950, with a company mission to provide a reliable resource of high purity metals for universities, manufacturing companies and corporate R&D laboratories worldwide.
Interactive 3D chemistry animations of reaction mechanisms and 3D models of chemical structures for students studying University courses and advanced school chemistry hosted by University of Liverpool
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The formation of Ni silicides has been successfully monitored by Raman spectroscopy. Ni silicides formed at different annealing temperatures using rapid thermal annealing were analyzed using Rutherford backscattering spectroscopy and X-ray diffraction. Raman spectroscopy was further used to examine these samples. The results showed that Raman spectroscopy could accurately identify the phases of Ni silicides formed at various temperatures. These findings were used to demonstrate the increased thermal stability of NiSi by the addition of Pt. This study demonstrates the applicability of Raman spectroscopy for monitoring the formation of NiSi, which was suggested to be the future silicide for deep submicrometer integrated circuit processing. Raman spectroscopy offers a unique tool for phase identification at localized areas and mapping characterization of Ni silicides with micrometer spatial resolution ...
bold{Structures and Electronic Properties of Self-assembled Pt Silicide Nanowires on Si(100)$ We investigated the formation of Pt silicide nanowires on a Si(100) surface using scanning tunneling microscopy and high-resolution photoemission spectroscopy. Pt silicide nanowires with a tetragonal Pt2Si structure are formed along the step edges of Si(100). Pt-induced c(4 $\times$ 2) reconstructions also appear adjacent to the tetragonal $Pt_2Si$ nanowires. Formation of the $Pt_2Si$ nanowires is attributed to the anisotropic lattice mismatches between the tetragonal $Pt_2Si$ structure and Si(100). Scanning tunneling spectroscopy data show that the nanowires are metallic. The stoichiometry of Pt silicide is confirmed by high-resolution photoemission spectroscopy. $\bold{Unidirectional Pt Silicide Nanowires Grown on Vicinal Si(100)}$ The formation and electronic properties of unidirectional $Pt_2Si$ nanowires grown on a Si(100)-2° off surface were investigated. We found that $Pt_2Si$ nanowires were ...
Composites containing 3 mol% yttria stabilized tetragonal zirconia (3Y-TZP) reinforced with multiwalled carbon nanotubes (CNTs) with various amounts of CNTs (3Y-TZP / X wt% CNT, X= 0, 0.5, 1.5, 3 and 5) were processed by spark plasma sintering. Microscopic analysis proves that CNTs were well dispersed and embedded in grain boundaries of the sintered body. High temperature mechanical properties have been investigated using mechanical spectroscopy and low stress (6 MPa) creep. The isothermal spectrum (measured at 1600 K) consists of a mechanical loss peak at a frequency of about 0.1 Hz, which is superimposed on an exponential increase at low frequency. The absence of a well-marked peak in monolithic 3Y-TZP is justified considering that restoring force decreases at low frequencies or high temperatures due to the elasticity of neighboring grains. Therefore, strain is no more restricted and the mechanical loss increases exponentially, which is correlated to macroscopic creep. However, with CNT ...
Page contains details about sodium yttrium fluoride-coated ytterbium, thulium-doped sodium yttrium fluoride nanocrystals incorporated into nanoimpeller particles . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
This randomized phase III trial studies 90-yttrium ibritumomab tiuxetan and combination chemotherapy compared with combination chemotherapy alone before stem cell transplant in treating patients with diffuse large b-cell non-Hodgkin lymphoma that has returned after a period of improvement. Radioactive substances linked to monoclonal antibodies, such as 90-yttrium ibritumomab tiuxetan, can bind to cancer cells and give off radiation which may help kill cancer cells. Drugs used in chemotherapy, such as carmustine, etoposide phosphate, cytarabine, and melphalan (BEAM), work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. It is not yet known whether 90-yttrium ibritumomab tiuxetan and BEAM before a stem cell transplant are more effective than BEAM alone in treating patients with diffuse large b-cell non-Hodgkin lymphoma.. ...
0078]Afterwards, a thermal oxidation barrier 490 may be formed on the patterned metal layer, the metal silicide layer, or the double layer thereof 480. An annealing process is then performed to remove the metal catalyst for crystallization remaining in the semiconductor layer 420, particularly, the metal catalyst remaining in the channel region 422 of the semiconductor layer 420. When the annealing process is performed, a metal of the metal layer combines with silicon of the semiconductor layer 420 at the surface of the semiconductor layer 420 in contact with the metal layer pattern, the metal silicide layer pattern, or the double layer pattern thereof 480 to form a metal silicide, and/or the metal silicide of the metal silicide layer pattern is diffused into the region of the semiconductor layer 420 in contact with the patterned metal layer, metal silicide layer, or double layer thereof 480. Accordingly, a region 420a, in which a metal silicide different from the metal silicide formed from the ...
In this study, the application of a calcium-based bifunctional catalyst/sorbent is investigated in modified chemical looping steam methane reforming (CLSMR) process for in situ CO2 sorption and H2 production. The yttrium promoted Ca-Co samples were synthesized and applied as bifunctional catalysts/sorbent. The influence of reduction temperature (500-750 °C), Ca/Co and Ca/Y ratios (1.5-∞ and 3-18, respectively) and catalyst life time are determined in CLSMR process. The physicochemical transformation of fresh, used and regenerated samples after 16 redox cycles are determined using X-ray powder diffraction (XRD), N2 adsorption-desorption, field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX) and transmission electron microscopy (TEM) techniques. The effect of yttrium promoter on the structure of catalyst and regeneration step on the reversibility of bifunctional catalyst/sorbent was two important factors. The characterization results revealed that the presence
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0055] In this step, only an upper portion of the Si layers 16 and 26 are silicided. Accordingly, the Si layers 16 remain between the SiGe layers 15 and the silicide layers 17, and the Si layers 26 remain between the SiGe layers 25 and the silicide layers 27. The conductivity type impurities in the silicided portions of the Si layers 16 and 26 are extruded to the non-silicided portions by the forming of the silicide layers 17 and 27, and the SiGe layers 15 and 25 suppress diffusion of the extruded conductivity type impurities. As a result, the conductivity type impurities are concentrated into the Si layers 16 between the SiGe layers 15 and the silicide layers 17 and into the Si layers 26 between the SiGe layers 25 and the silicide layers 27, thereby decreasing contact resistances at the interfaces between the silicide layers 17 and the Si layers 16 and at the interfaces between the silicide layers 27 and the Si layers 26 ...
Mr. Speaker, I rise today to speak to private members bill, Bill C-211, an act respecting a federal framework on post-traumatic stress disorder.. Mental health is a state of well-being in which every individual realizes his or her own potential, can cope with the normal stresses of life, can work productively and fruitfully, and is able to make a contribution to his or her community. Improving the mental health of all people living in Canada is a priority for the federal government, which is one of the reasons why this government will be supporting Bill C-211 with amendments and we will work to address those at committee stage.. The Minister of Health continues to engage provincial and territorial governments to deliver on important investments in health, with mental health as a priority area of focus.. On December 19, 2016, the Government of Canada offered to give the provinces and territories approximately $11 billion over 10 years for mental health care and home care in addition to $544 ...
Mr. Speaker, I rise today to speak to private members bill, Bill C-211, an act respecting a federal framework on post-traumatic stress disorder.. Mental health is a state of well-being in which every individual realizes his or her own potential, can cope with the normal stresses of life, can work productively and fruitfully, and is able to make a contribution to his or her community. Improving the mental health of all people living in Canada is a priority for the federal government, which is one of the reasons why this government will be supporting Bill C-211 with amendments and we will work to address those at committee stage.. The Minister of Health continues to engage provincial and territorial governments to deliver on important investments in health, with mental health as a priority area of focus.. On December 19, 2016, the Government of Canada offered to give the provinces and territories approximately $11 billion over 10 years for mental health care and home care in addition to $544 ...
The recent discovery of the quantum anomalous Hall effect (QAHE) in magnetically doped topological insulators cooled below in the milikelvin regime represents breakthrough in the field of spintronics(1). Theoretically, the QAHE should occur in graphene proximity coupled to a ferromagnetic insulator(2) but with the promise of much higher operating temperatures for practical applications. Hints of proximity-induced magnetism in graphene coupled to yttrium iron garnet (YIG) films have been reported (3) although the QAHE remains unobserved; the lack of a fully developed plateau in graphene/YIG devices can be attributed to poor interfacial coupling and therefore a dramatically reduced magnetic proximity effect. Here we report the deposition and characterisation of epitaxial thin-films of YIG on lattice-matched gadolinium gallium garnet substrates by pulsed laser deposition. Pristine exfoliated graphene flakes transferred mechanically onto the YIG are reported alongside results that correlate the effects
W-Y2O3composite nanopowders prepared via wet chemical method exhibit unique morphologies and microstructures. The yttrium addition during chemical reaction process affects not only the composition...
Demand is increasing for the determination of the rare-earth elements (REE) and yttrium in geologic materials. Due to their low natural abundance in many materials and the interferences that occur in many methods of determination, a separation procedure utilizing gradient strong-acid cation-exchange chromatography is often used to preconcentrate and isolate these elements from the host-rock matrix. Two separate gradient strong-acid cation-exchange procedures were characterized and the major elements as well as those elements thought to provide the greatest interference for the determination of the REE in geologic materials were tested for separation from the REE. Simultaneous inductively coupled argon plasma-atomic emission spectroscopy (ICAP-AES) measurements were used to construct the chromatograms for the elution studies, allowing the elution patterns of all the elements of interest to be determined in a single fraction of eluent. As a rock matrix, U.S. Geological Survey standard reference BCR-1
In this work, the composition of oxygen-containing yttrium hydride (YHO) thin films was investigated. The films were prepared by reactive sputter deposition, and were found for have oxygen contents on the order of several tens of per cents. We present depth-resolved atomic composition profiles of photochromic YHO films to study the connection between composition, photochromic properties and growth parameters. Two films, deposited at different pressures, were prepared and characterized using ion beam analysis techniques, i.e. Rutherford backscattering spectrometry and elastic recoil detection analysis. We found that an increase of deposition pressure results in larger [O]/[Y] ratios, while the ratio [H]/[Y] becomes reduced. We also report a gradual oxidation of the films exposed to air as well as hydrogen release under ion ...
We propose a two-dimensional (2D) tetragonal material: an yttrium nitride (t-YN) monolayer, with a distinguished combination of mechanical and electronic properties based on first-principles calculations. We find that the t-YN monolayer is a low direct band gap semiconductor (0.55 eV) with strong anisotropic
RATIONALE: Monoclonal antibodies, such as rituximab and yttrium Y 90 ibritumomab tiuxetan, can locate cancer cells and either kill them or deliver radio
RATIONALE: Monoclonal antibodies such as yttrium Y 90 ibritumomab tiuxetan and rituximab can locate cancer cells and either kill them or deliver radioac
In this report, the United States Yttrium Oxide market is valued at USD XX million in 2016 and is expected to reach USD XX million by the end of 2022,...
(C5Me5)2Y(η3-C3H5) reacts with 9-borabicyclo[3.3.1]nonane, 9-BBN, to form single crystals containing both a borane-substituted allyl complex, (C5Me5)2Y[η3-C3H4(BC8H14)], and a borohydride, (C5Me5)2Y(μ-H)2BC8H14, that can be synthesized directly from 9-BBN and the yttrium hydride, [(C5Me5)2YH]x.
Oxygen-containing yttrium hydride thin films exhibit photochromic behavior: Transparent thin films reversibly switch from a transparent state to a photodarkened state after being illuminated with UV or blue light. From optical spectrophotometry and ellipsometry measurements of the transparent state and photodarkened state, it is concluded that the photochromic effect can be explained by the gradual growth, under illumination, of metallic domains within the initial wide-band-gap semiconducting lattice. This conclusion is supported by Raman measurements.. ...
This thesis focuses on the reactivity of polyoxometalate (POM) building blocks; more specifically, those derived from the Keggin {M12} and Wells-Dawson {M18} structural motifs. Lacunary Keggin and Wells-Dawson cages, i.e. those containing metal-atom site vacancies, are highly reactive and versatile fragments that can be employed as structural building units (SBUs) towards the design of novel high nuclearity compounds as well as the assembly of infinite supramolecular framework materials. The isolation of a selection of intermediate species from simple one-pot procedures has been made possible though the use of the water soluble tertiary amine N,N-bis(2-hydroxyethyl)piperazine (bhep) as a pH buffer. These intermediate Keggin-based POM fragments represent monomeric units of previously-reported transition metal-substituted polyoxometalate (TMSP) motifs. This multifunctional amine can be used either as a pH buffer or as a protonated counter cation and consequently plays a key role in the ...
1. Kelly JR, Benetti P. Ceramic materials in dentistry: historical evolution and current practice. Aust Dent J. 2011;56 Suppl 1:84-96.. 2. Li RW, Chow TW, Matinlinna JP. Ceramic dental biomaterials and CAD/CAM technology: state of the art. J Prosthodont Res. 2014;58(4):208-216.. 3. Kelly JR. Dental ceramics: what is this stuff anyway? J Am Dent Assoc. 2008;139 Suppl:4S-7S.. 4. Kelly JR. Dental ceramics: current thinking and trends. Dent Clin North Am. 2004;48(2):513-530.. 5. Denry IL. Recent advances in ceramics for dentistry. Crit Rev Oral Biol Med. 1996;7(2):134-143.. 6. Miyazaki T, Nakamura T, Matsumura H, Ban S, Kobayashi T. Current status of zirconia restoration. J Prosthodont Res. 2013;57(4):236-261.. 7. Magne P, Schlichting LH, Maia HP, Baratieri LN. In vitro fatigue resistance of CAD/CAM composite resin and ceramic posterior occlusal veneers. J Prosthet Dent. 2010;104(3):149-157.. 8. Beier US, Dumfahrt H. Longevity of silicate ceramic restorations. Quintessence Int. ...
The realization of plasmo-electronic integrated circuits in a silicon chip will be enabled by two new plasmonic materials that are proposed and modeled in this article. The first is ion-implanted Si (n-type or p-type) at the surface of an intrinsic Si chip. The second is a thin-layer silicide such as Pd2Si, NiSi, PtSi2 WSi2 or CoSi2 formed at the Si chip surface. For doping concentrations of 1020 cm-3 and 1021 cm-3, our dispersion calculations show that bound surface plasmon polaritons will propagate with low loss on stripe-shaped plasmonic waveguides over the 10 to 55 µm and 2.8 to 15 µm wavelength ranges, respectively. For Pd2Si/Si plasmonic waveguides, the wavelength range of 0.5 to 7.5 µm is useful and here the propagation lengths are 1 to 2300 µm. For both doped and silicided guides, the SPP mode field extends much more into the air above the stripe than it does into the conductive stripe material.. ©2008 Optical Society of America. Full Article , PDF Article ...
This page contains information on the chemical Calcium silicide including: 2 synonyms/identifiers; U.S. Code of Federal Regulations Title 49 Section 172 shipping regulations and 2 proper shipping names; USDOT 2008 Emergency Response Guidebook initial response information.
Weve been promised portable fuel cells for years, but tech from SiGNa Chemistry might have a real shot at taking the concept mainstream. Instead of the more commonly used methanol, the outfit serves up a sodium silicide mix which its begun licensing to companies bearing the SiGNa fueled logo. One example is PowerTrekk that first went on sale in Europe last December and is now making its way to the US this spring. The special salt concoction comes packaged into 5Wh hockey puck cartridges -- appropriately called Pukks -- to generate power and subsequently juice whatever device you plug into it over USB. Itll ship stateside in May for around $200, replete with an onboard 5Wh lithium-ion battery which acts as a rechargeable buffer, ensuring youll still have some juice even after you run out of cartridges. Catch the power generating tech in a video after the break.
Sintered yttria and sintered dysprosia can be used to make single- component thermistors having typical thermistor geometries and operable in the temperature range 500 deg. to 1,200 deg. C. However, at these temperatures, instability of platinum electrodes can contribute a slight aging effect if the thermistor is kept near 1,200 deg. C for long periods. Typical characteristics at 500 deg. C for a
Swedish University dissertations (essays) about YTTRIA. Search and download thousands of Swedish university dissertations. Full text. Free.
Owing to its high stability in aqueous solution and high quantum efficiency, tantalum based oxyntride (TaON) has attracted increasing attentions for application as visible light photocatalyst. However, despite the recent progress in photocatalytic studies, its bulk charge transport mechanisms are yet to be discovered because of the lack of single crystal sample. In this paper, high quality single crystalline TaON(100) thin film was prepared on cubic YSZ(100) surface by reactive RF magnetron sputtering to avail the understandings of charge transport mechanism so as to improve the device efficiency. The stoichiometry, crystal phase and structure were examined in situ by x-ray photoelectron spectroscopy (XPS) and ex situ by x-ray diffraction (XRD) and transmission electron microscopy (TEM). The TaON film crystallizes in monoclinic β-phase with its [010]/[001] directions aligned to those of the substrate. The small band gap of 2.5 eV as well as the high structure perfection suggests better ...
Lava CAD/CAM, created by 3M ESPE, is a system that works with zirconia restorations. This system is offered to both the dentist and the dental laboratory. Lava consists of a chairside oral scanner, a Lava Scan ST scanner which is used by the laboratory, digital software, and a milling machine ...
In 1787, Swedish part-time chemist Carl Axel Arrhenius found a heavy black rock near the Swedish village of Ytterby, Sweden (part of the Stockholm Archipelago).[1] Thinking that it was an unknown mineral containing the newly discovered element tungsten,[2] he named it ytterbite.[note 1] Finnish scientist Johan Gadolin identified a new oxide or earth in Arrhenius sample in 1789, and published his completed analysis in 1794;[3] in 1797, the new oxide was named yttria.[4] In the decades after French scientist Antoine Lavoisier developed the first modern definition of chemical elements, it was believed that earths could be reduced to their elements, meaning that the discovery of a new earth was equivalent to the discovery of the element within, which in this case would have been yttrium.[note 2] Until the early 1920s, the chemical symbol Yt was used for the element, after which Y came into common use.[5] Yttrium metal was first isolated in 1828 when Friedrich Wöhler heated anhydrous ...
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Multiple ferromagnetic secondary phases in Fe implanted yttria stabilized zirconia. A. Shalimov, S. Q. Zhou, O. Roshchupkina, N. Jeutter, C. Baehtz, G. Talut, H. Reuther, K. Potzger. J. Appl. Phys. 108, 024907 (2010).. Fe nanoparticles embedded in MgO crystals. A. Shalimov, K. Potzger, D. Geiger, H. Lichte, G. Talut, A. Misiuk, H. Reuther, F. Stromberg, S. Q. Zhou, C. Baehtz, J. Fassbender. J. Appl. Phys. 105, 064906 (2009).. Memory effect of magnetic nanoparticle systems originating from particle size distribution. G. Zhang, K. Potzger, S. Q. Zhou, A. Muecklich, Y. C. Ma, and J. Fassbender. Nucl. Instrum. Meth. B 267, 1596 (2009).. Formation of metallic clusters in oxide insulators by means of ion beam mixing. G. Talut, K. Potzger, A. Muecklich, and Shengqiang Zhou. J. Appl. Phys. 103, 07D505 (2008).. Ion beam synthesis of Fe nanoparticles in MgO and yttria-stabilized zirconia. K. Potzger, H. Reuther, S. Q. Zhou, A. Mucklich, R. Grotzschel, F. Eichhorn, M. O. Liedke, J. Fassbender, H. Lichte, ...
Abstract: Silicide growth via reaction between a metallic film and a Si substrate has been well documented. In general, atomic transport kinetic during the growth of silicides is considered to be the same as during equilibrium diffusion, despite the reaction and its possible injection of point-defects in the two phases on each side of the interface. To date, the main studies aiming to investigate atomic transport during silicide growth used immobile markers in order to determine which element diffuses the fastest during growth and in which proportion. The quantitative measurements of effective diffusion coefficients during growth was also performed using Deal-and-Groove-type of models, however, these effective coefficients are in general not in agreement with the interdiffusion coefficients calculated using the equilibrium diffusion coefficients measured during diffusion experiments. In general, atomic transport kinetic measurements during growth and without growth are performed using different ...
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TY - JOUR. T1 - Use of a modified zirconia support in the separation of immunoproteins. AU - Subramanian, Anuradha. AU - Sarkar, Sabyasachi. PY - 2002/1/25. Y1 - 2002/1/25. N2 - Zirconia beads (25-38 μm in diameter) were modified with N,N,N′,N′-ethylenediaminetetramethylenephosphonic acid to generate a zirconia based pseudoaffinity support, further referred to as r_PEZ. The influence of pH, salt concentration and temperature on the binding of human immunoglobulin G (hIgG) to r_PEZ was studied. Temperature had no significant impact on the maximum binding capacity (Qmax), and the equilibrium-binding constant (Kd), whereas pH and the salt concentration had a noticeable impact on both Qmax and Kd. The Qmax value of 55 mg hIgG/ml of bead was obtained at a pH of 5.5 and found to decrease with an increase of pH. The modified zirconia support allowed the separation of immunoglobulins (IgG, IgA and IgM) from untreated human serum. Elution was possible under mild conditions with a step salt gradient. ...
USA patent No. 3897358; V. S. Glazachev, E. S. Lukin, et al., Tr. D. I. Mendeleev Inst. Chem. Technol., Moscow, No. 92, 61 (1976).Google Scholar ...
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Abstract: The effect of ion implantation of yttrium on the oxidation behavior of Ni3Al base alloy IC6 at 1100°C was investigated by SEM/EDS, TEM and XRD methods. The results indicated that after Y ion implantation, the surface of IC6 alloy changed from large column crystals to fine distributed nano-crystals, and the density of dislocations in distorted region increased with the implanted ions dose, which can act as high-diffusivity path and oxide core. Comparing to un-implanted IC6 alloy, Y-implantation increased the oxidation rate of IC6 alloy in initial 25 h at 1100°C, but decreased the maximum weight gain and the oxidation rate in final period. Moreover, the oxide scales of Y-implanted IC6 alloy were more continuous and compact due to the benefit effect of yttrium, and had better coherence to substrate through reduction of oxide grain size resulting in oxide scale plasticity improvement. Hence the proper amount of implanted Y could improve the oxidation resistance of IC6 alloy at 1100°C in ...
Unlike conventional dental ceramic powder made by grinding, dental ceramic nanocrystals are formed by vaporization into individual particles. Tetragonal zirconia particles thus formed are not broken
With 8 main frame tube section choices and various specialty tubes, almost anything is possible (see Specifications below). We encourage frame designers to collaborate with us in selecting a specific tube combination for each frame. Rider weight, rider power, tube lengths, fatigue life and ride characteristics all effect tube diameter and wall thickness choices. Each tube option is designed and measured for both its yield strength and sectional stiffness. When combined with performance matching data from ranging rider profiles, you can now not only achieve the perfect rider dimensional fit, you can also design the strength, durability and feel of the ride. See calculation of an Effective Frame Load and corresponding recommendations for main tube selections. ...
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Ytterbium Doped Yttrium Aluminum Garnet Yb-Y-Al bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples program. Term contracts & credit cards/PayPal accepted.
Dazzling brilliant-cut cubic zirconia earrings shine in a traditional setting of sterling silver and are sure to turn some heads! Cubic zirconia stud earrings are a classic design that look fabulous on everyone and are great for all occasions, and do we really mean all occasions! These earrings will definitely become some of your favorites to accessorize with. The base is made of a gleaming sterling silver. You will love the way that they shimmer with every move that you make! * .925 sterling silver * Platinum Finish * Stones: Cubic Zirconia * 2ct Total Weight of Stones * 6mm
The mechanism of formation of epitaxial CoSi2 film on (001) Si substrate, produced using sequentially deposited Ti-Co bimetallic layer source materials for which Ti was deposited onto the Si substrates first, has been studied by studied by observing the Co silicide formation processes and structures in samples prepared by isochronal annealing and by isothermal annealing. The results demonstrated that, in leading to epitaxial CoSi2 film formation, Ti has played two roles. It has served as a barrier material to Co atoms and thus preventing Co2Si from forming. More importantly, it has allowed nucleation and growth of epitaxial CoSi2 to dominate the Co silicide film formation process, apparently because it has served as a cleanser to remove native oxide from the Si substage surface. Keywords: ...
The proportions of the three different metals in the YBa2Cu3O7 superconductor are in the mole ratio of 1 to 2 to 3 for yttrium ... The Cuprate of Barium and Yttrium, YBa2Cu3O7−x (or Y123), was the first superconductor found above liquid nitrogen boiling ... There are two atoms of Barium for each atom of Yttrium. ... Cuprate of Barium and Yttrium[edit]. Unit cell for the Cuprate ...
"Yttrium". Royal Society of Chemistry. Retrieved 1 January 2020. Saltzman, Martin D. "Wöhler, Friedrich". encyclopedia.com. ... He achieved these preparations by heating the anhydrous chlorides of beryllium and yttrium with potassium metal. In 1850, ... being the first to isolate the chemical elements beryllium and yttrium in pure metallic form. He was the first to prepare ... he became the first to isolate the element yttrium in pure metallic form. ...
... publications indexed by Google Scholar "Profile - Yttrium Zone". Yttrium Zone. Retrieved 2018-08-14. "Deep-sea ...
Yttrium was found in varying amounts and locations in the bodies of almost half of those examined (37/80). Erämetsä was ... Yttrium and lanthanides in the spleen". Annales medicinae experimentalis et biologiae Fenniae. 49 (1): 35-7. PMID 5576240. ... I. Yttrium". Annales medicinae experimentalis et biologiae Fenniae. 46 (2): 179-84. PMID 5753710. Punsar, Sven; Erämetsä, Olavi ... With the new instruments, the researchers detected yttrium and other lanthanides. In one study, autopsies were performed on the ...
... is now known as Yttrium(III) oxide. It is composed of the first known rare-earth element, yttrium. Examining a different sample ... Marshall, James L.; Marshall, Virginia R. (2008). "Rediscovery of the Elements: Yttrium and Johan Gadolin" (PDF). The Hexagon ( ... Dinér, Peter (21 January 2016). "Yttrium from Ytterby". Nature Chemistry. 8 (2): 192. doi:10.1038/nchem.2442. ISSN 1755-4349. ... and yttrium. Arrhenius was born in Stockholm on 29 March 1757 to Jakob Larsson Arrhenius and Brita Sofia Georgii. In 1796 he ...
This structure has been referred to in references as yttrium(III) chloride and chromium(III) chloride, but both are now known ... "YCl3 - Yttrium trichloride". ChemTube3D. University of Liverpool. 2008. Archived from the original on 27 January 2016. ...
Heiserman, David L. (1992). "Element 39: Yttrium". Exploring Chemical Elements and their Compounds. New York: TAB Books. pp. ... ISBN 0-8306-3018-X. Wöhler, Friedrich (1828). "Ueber das Beryllium und Yttrium". Annalen der Physik. 89 (8): 577-582. Bibcode: ...
Yttria, Y2O3[edit]. The initial work in developing transparent yttrium oxide nanomaterials was carried out by General Electric ... Yttria, Y2O3[edit]. Alternative materials, such as yttrium oxide, offer better optical performance, but inferior mechanical ... Raytheon perfected and characterized its undoped polycrystalline yttria, while lanthana-doped yttria was similarly developed by ... yttria powder previously used to prepare transparent yttria. While all of the nanopowders evaluated had impurity levels that ...
V10AA Yttrium (90Y) compounds[szerkesztés]. V10AA01 Yttrium (90Y) citrate colloid. V10AA02 Yttrium (90Y) ferrihydroxide colloid ... V10AA03 Yttrium (90Y) silicate colloid. V10AX Other anti-inflammatory therapeutic radiopharmaceuticals[szerkesztés]. V10AX01 ...
Y. Wetzel (1963). "Scandium, Yttrium, Rare Earths". In G. Brauer (ed.). Handbook of Preparative Inorganic Chemistry, 2nd Ed. 1 ...
Wöhler, Friedrich (1828). "Ueber das Beryllium und Yttrium". Annalen der Physik. 89 (8): 577-582. Bibcode:1828AnP....89..577W. ...
Wöhler, F. (1828). "Ueber das Beryllium und Yttrium" [On beryllium and yttrium]. Annalen der Physik und Chemie. 13 (89): 577- ... Therefore, in order to avoid confusion of it with yttria-earth, it would perhaps be advisable to abandon this name glycine and ... Klaproth preferred the name "beryllina" due to the fact that yttria also formed sweet salts. The name "beryllium" was first ... Wöhler, Friedrich (1828). "Ueber das Beryllium und Yttrium". Annalen der Physik und Chemie. 89 (8): 577-582. Bibcode:1828AnP ...
In addition to yttrium, a wide range of rare-earth elements from Nd to Lu, except for Eu, can form REB66 compounds. Seybolt ... There are 48 yttrium sites ((0.0563, 1/4, 1/4) for YB62) in the unit cell. Richards and Kasper fixed the Y site occupancy to ... Similar to yttrium, rare-earth metals from Gd to Lu can form REB41Si1.2-type boride. The first such compound was synthesized by ... There are 13 boron sites B1-B13 and one yttrium site. The B1 sites form one icosahedron and the B2-B9 sites make up another ...
"Superconductivity up to 243 K in yttrium hydrides under high pressure". arXiv:1909.10482 [cond-mat.supr-con]. Troyan, I. A.; ... "Pressure-stabilized superconductive yttrium hydrides". Scientific Reports. 5 (1): 9948. Bibcode:2015NatSR...5E9948L. doi: ... "Synthesis and Superconductivity of Yttrium Hexahydride -YH6". arXiv:1908.01534 [cond-mat.supr-con]. Troyan, Ivan A.; Semenok, ... "Potential high-Tc superconducting lanthanum and yttrium hydrides at high pressure". Proceedings of the National Academy of ...
Yttrium and all lanthanides except Ce and Pm have been observed in the oxidation state 0 in bis(1,3,5-tri-t-butylbenzene) ... Scandium, Yttrium, Elements des Terres Rares, Actinium, P. Pascal, Editor, Masson & Cie, 1959 Chemistry of the Lanthanons, by R ... ISBN 978-0-08-022057-4. The Industrial Chemistry of the Lanthanons, Yttrium, Thorium and Uranium, by R. J. Callow, Pergamon ... ISBN 0-8493-0486-5. The Radiochemistry of the Rare Earths, Scandium, Yttrium, and Actinium Greenwood and Earnshaw, p. 1105-7 " ...
A silvery-white metallic d-block element, it has historically been classified as a rare-earth element, together with yttrium ... Dentists use erbium-chromium-doped yttrium-scandium-gallium garnet (Er,Cr:YSGG) lasers for cavity preparation and in ... In early 2018, evidence was gathered from spectrometer data of significant scandium, vanadium, and yttrium abundances in red ... The properties of scandium compounds are intermediate between those of aluminium and yttrium. A diagonal relationship exists ...
Yttrium-90Edit. 90Y is a beta emitter. Name Treatment of Route of administration ...
"Superconductivity in Yttrium Iron Oxyarsenide System". Journal of Physics: Conference Series. 150 (5): 052036. arXiv:0808.0288 ...
A rare yttrium phosphate mineral Xenotime. Thulite (also called rosaline), an opaque, massive pink variety of the mineral ...
Both yttrium-90 and holmium-166 have a mean tissue penetration of a few millimeters. Yttrium-90 can be imaged using ... with maximum penetration up to 11mm for yttrium-90 or 8.7mm for holmium-166. After treatment, for yttrium-90 based microspheres ... Clinical trials of yttrium-90 applied to the liver continued throughout the late 1980s to the 1990s, establishing the safety of ... The half-life of yttrium-90, a pure beta emitter, is 2.6 days, or 64.1 hours. In contrast, holmium-166 is a combined beta and ...
... is the study of compounds containing carbon-yttrium bonds. They are studied in academic research, but ... Turner 1920, p.492 Spencer 1919, p.135 Schumann, H.; Fedushkin, I. L. (2006). "Scandium, Yttrium & The Lanthanides: ...
Pecher filed a patent in May 1941 for the synthesis of strontium-89 and yttrium-86 using cyclotrons and described the use of ... Pecher, Charles (1940). "A Long-Lived Isotope of Yttrium". Physical Review. 58 (9): 843. Bibcode:1940PhRv...58..843P. doi: ... Simultaneous Production of Radio-Strontium for Therapeutic Bone Irradiation and a Radio-Yttrium Suitable for Metallic ... "The retention and excretion of radioactive strontium and yttrium (Sr89, Sr90 and Y90) in the healthy rabbit". The Journal of ...
Khatamian, D.; Manchester, F. D. (1 June 1988). "The H−Y (Hydrogen-Yttrium) System". Bulletin of Alloy Phase Diagrams. 9 (3): ...
The dose of yttrium-90 to be infused is calculated with the manufacturer's formula based on lung shunting, body surface area, ... It consists of injecting small radioactive beads loaded with yttrium-90 into the hepatic artery feeding the hepatic lobe in ... Riaz, Ahsun; Awais, Rafia; Salem, Riad (2014). "Side Effects of Yttrium-90 Radioembolization". Frontiers in Oncology. 4: 198. ...
Yttrium metal, albeit impure, was first prepared in 1828 when Friedrich Wöhler heated anhydrous yttrium(III) chloride with ... The most available element in group 3 is yttrium, with annual production of 8,900 tonnes in 2010. Yttrium is mostly produced as ... Over a century of research had split the original yttrium of Gadolin into yttrium, scandium, lutetium, and seven other new ... Due to the effects of the lanthanide contraction, yttrium and lutetium are very similar in properties. Yttrium and lutetium ...
Kamijo, Manjiroh; Suzuki, Tohru; Kawai, Keiichi; Murase, Hironobu (1998-01-01). "Accumulation of yttrium by Variovorax ...
... in mantles, though still common, has been progressively replaced with yttrium since the late 1990s. According to the ... 1st phosphoric yttria.]. Kungliga Svenska Vetenskapsakademiens Handlingar (in Swedish). 2: 334-338. "Xenotime-(Y)". Mindat ... Some manufacturers have changed to other materials, such as yttrium. As recently as 2007, some companies continued to ... Toepker, Terrence P. (1996). "Thorium and yttrium in gas lantern mantles". American Journal of Physics. 64 (2): 109. Bibcode: ...
... 's competing materials were an yttria containing lanthanum oxide manufactured by GTE, and a pure yttria material ... Yttralox is a solid solution of thorium dioxide in yttria. The thorium dioxide additive affects the growth of grains during ... The initial objective of the research was to develop ionic conductors for fuel cells using yttria-zirconium dioxide materials. ... Buckley, Paeker L. (August 1982). "A Study of the Use of Transparent Yttrium Oxide for Ramjet Combustion Research". Defense ...
Yttrium 1794 J. Gadolin 1843 H. Rose Discovered in gadolinite, but Mosander showed later that its ore, yttria, contained more ... Mosander managed to split the old yttria into yttria proper and erbia, and later terbia too.[90] ... Mosander managed to split the old yttria into yttria proper and erbia, and later terbia too.[91] ... Wöhler mistakenly thought he had isolated the metal in 1828 from a volatile chloride he supposed to be yttrium chloride,[62][63 ...
Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine ... Yttrium after the village of Ytterby, Sweden, where the first rare earth ore was discovered. Yttrium aluminium garnet (YAG) ... In 1842 Mosander also separated the yttria into three oxides: pure yttria, terbia and erbia (all the names are derived from the ... yttria-stabilized zirconia (YSZ), yttrium iron garnet (YIG) microwave filters,[7] energy-efficient light bulbs (part of ...
With halogens, yttrium forms trihalides such as yttrium(III) fluoride (YF. 3), yttrium(III) chloride (YCl. 3), and yttrium(III ... YAG, yttria, yttrium lithium fluoride (LiYF. 4), and yttrium orthovanadate (YVO. 4) are used in combination with dopants such ... Yttrium is used in the production of a large variety of synthetic garnets,[61] and yttria is used to make yttrium iron garnets ... The radioactive isotope yttrium-90 is used in drugs such as Yttrium Y 90-DOTA-tyr3-octreotide and Yttrium Y 90 ibritumomab ...
Yttrium boride refers to a crystalline material composed of different proportions of yttrium and boron, such as YB2, YB4, YB6, ... YB12 (yttrium dodecaboride)[edit]. YB12 crystals have a cubic structure with density of 3.44 g/cm3, Pearson symbol cF52, space ... YB6 (yttrium hexaboride)[edit]. YB6 is a black odorless powder having density of 3.67 g/cm3; it has the same cubic crystalline ... There are 48 yttrium sites ((0.0563, 1/4, 1/4) for YB62[15]) in the unit cell. Fixing the occupancy of the Y site to 0.5 ...
0.0108133 λ2 Neodymium-doped yttrium orthovanadate US patent 3914018, Deshazer, Larry G., "Yttrium orthovanadate optical ... Yttrium orthovanadate (YVO4) is a transparent crystal. Undoped YVO4 is also used to make efficient high-power polarizing prisms ... There are two principal applications for doped Yttrium orthovanadate: Doped with neodymium it forms Nd:YVO4, an active laser ... ISBN 978-84-89784-33-8. "Yttrium Vanadate (YVO4) Crystal". Casix. Archived from the original on May 17, 2008. Retrieved 2008-09 ...
Yttrium is a silvery white, moderately soft, ductile metal. It is quite stable in air; rapid oxidation begins above ... Yttrium (Y), chemical element, a rare-earth metal of Group 3 of the periodic table. ... Yttrium aluminum garnet (YAG) doped with other rare earths is used in lasers; yttrium iron garnet (YIG) is used for microwave ... Yttrium compounds are used in optical glasses and as catalysts.. Yttrium behaves chemically as a typical rare-earth element ...
Yttrium metal Dark-gray to black, odorless solid. ... TWA 1 mg/m3 [*Note: The REL also applies to other yttrium ... TWA 1 mg/m3 [*Note: The PEL also applies to other yttrium compounds (as Y).] ...
Johnson, L.W.; Johnson, R.C., The band spectrum of yttrium oxide (YO). With a note on the ScO and LaO systems, Proc. R. Soc. ... Murthy, N.S.; Murthy, B.N., The Franck-Condon factors and the r centroids of yttrium oxide (B2«SIGMA»-X2«SIGMA») band system, ... Meggers, W.F.; Wheeler, J.A., The band spectra of scandium~, yttrium~, and lanthanum monoxides, J. Res. Nat. Bur. Stand. US, ... Ackermann, R.J.; Rauh, E.G.; Thorn, R.J., Thermodynamic properties of gaseous yttrium monoxide. Correlation of bonding ingroup ...
Steimle, T.C.; Marr, A.J.; Xin, J.; Merer, A.J.; Athanassenas, K.; Gillett, D., Optical detection of yttrium dicarbide, a T- ... Steimle, T.C.; Bousquet, R.R.; Namiki, K.C.; Merer, A.J., Rotational Analysis of the Ã2A1--X2A1 Band System of Yttrium ...
Yttrium definition, a rare trivalent metallic element, found in gadolinite and other minerals. Symbol: Y; atomic weight: 88.905 ... yttrium. ytterbite, ytterbium, ytterbium oxide, yttria, yttriferous, yttrium, yttrium metal, yttrium oxide, yttrotantalite, Yü ... yttrium. *. Erbium, a rare metal found along with yttrium, terbium, and other rare elements in some rare minerals. ... In yttrium, on the proto level, a 110 and b 63 both escape from the funnel, and behave as in scandium. ...
Make research projects and school reports about yttrium easy with credible articles from our FREE, online encyclopedia and ... The only yttrium compound of commercial interest is yttrium oxide (Y2O3). Yttrium oxide is used to make phosphors for color ... Yttrium Chemistry: Foundations and Applications COPYRIGHT 2004 The Gale Group, Inc.. Yttrium. melting point: 1,522°C boiling ... That makes yttrium about as abundant as cobalt, copper, and zinc. As with other elements, the abundance of yttrium is quite ...
Y-90 radioembolization is a procedure that delivers radiation therapy directly to the tumors in the liver. With the help of imaging guidance, an interventional radiologist makes a small incision and guides a tiny tube (called a catheter) into the artery that supplies blood to the liver. Micro beads containing the radioactive substance known as Y-90 are injected. The beads can travel into the small blood vessels that feed the liver tumors. Once inside, they can destroy the tumor from within. This procedure minimizes any damage to nearby healthy tissue. ...
A potential candidate for this goal is yttrium ferrite. Powder precursors of yttrium ferrites, Y3Fe5O12 (YIG) and YFeO3, were ... Yttrium ferrites Impedance spectroscopy Magnetic properties Dielectric relaxation This is a preview of subscription content, ... Soreto Teixeira S., Sales A.J.M., Graça M.P.F., Valente M.A., Costa L.C. (2018) Electrical and Magnetic Properties of Yttrium ... Wu YJ, Gao Y, Chen XM (2007) Dielectric relaxations of yttrium iron garnet ceramics over a broad temperature range. Appl Phys ...
Yttrium Powder Y bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples program. Term contracts ... Yttrium Powder Synonyms. Yttrium particles, Yttrium microparticles, Yttrium micropowder, Yttrium micro powder, Yttrium micron ... 39 Y 88.905850000 Yttrium See more Yttrium products. Yttrium (atomic symbol: Y, atomic number: 39) is a Block D, Group 3, ... The yttrium atom has a radius of 180 pm and a Van der Waals radius of 219 pm. Yttrium was discovered by Johann Gadolin in 1794 ...
Yttrium Arsenide YAs bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples program. Term ... Yttrium. 39 Y 88.905850000 Yttrium See more Yttrium products. Yttrium (atomic symbol: Y, atomic number: 39) is a Block D, Group ... The yttrium atom has a radius of 180 pm and a Van der Waals radius of 219 pm. Yttrium was discovered by Johann Gadolin in 1794 ... About Yttrium Arsenide. Yttrium Arsenide is a crystalline solid used as a semiconductor and in photo optic applications. ...
... doped yttrium oxide phosphors have been prepared via solid-state reaction route. The study of phase purity, morphology,... ... A series of xSm3+ doped and yEu3+, xSm3+ (x = 0.5-2 mol% and y = 1 mol%) doped yttrium oxide phosphors have been prepared via ... L. Muresan, E.J. Popovici, E. Indrea, Structural and luminescence characterization of yttrium oxide based phosphor prepared by ... Photoluminescence characteristics of Sm3+ and Eu3+ doped yttrium oxide phosphors. ...
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YTTRIUM [symbol, Y; atomic weight, 89.0 (O = 16)], a metallic chemical clement. In its character yttrium is closely allied to, ... Yttria, Y2O3, is a yellowish white powder, which at high temperatures radiates out a most brilliant while light. It is soluble ... Solutions of yttria salts in their behaviour to reagents are not unlike those of zirconia. The atomic weight was determined by ... Metallic yttrium is obtainable as a dark grey powder by reducing the chloride with potassium, or by electrolysing the double ...
2014) performed with yttrium trichloride, and considered relevant for yttrium trinitrate as well. Species:. other: Desmodium ... 2014) performed with yttrium trichloride, and considered relevant for yttrium trinitrate as well. Species:. other: Panicum ... 2014) performed with yttrium trichloride, and considered relevant for yttrium trinitrate as well. Species:. Raphanus sativus. ... 2014) performed with yttrium trichloride, and considered relevant for yttrium trinitrate as well. Species:. other: Solanum ...
Yttrium nitride. Regulatory process names 1 IUPAC names 2 Other identifiers 1 ...
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice ...
The test item, yttrium trinitrate, was considered to be non-mutagenic under the conditions of the test, in the absence and ... Yttrium trinitrate was observed to be negative in the rec assay with Bacillus subtilis strains H17 and M45, indicating that the ... The test item yttrium trinitrate was investigated in a GLP-compliant chromosomal aberration test in Chinese hamster ovary cells ... It is concluded that yttrium trinitrate does not induce mutation at the TK locus of L5178Y mouse lymphoma cells in vitro in the ...
Yttrium, Lanthanides and Actinides, and Titanium, Zirconium, and Hafnium - 1st Edition. Print Book & E-Book. ISBN 9780080423111 ... Scandium, Yttrium and the 4f and 5f Elements, Excluding their Zero Oxidation State Complexes (F.T. Edelmann). Zero Oxidation ... Scandium, Yttrium, Lanthanides and Actinides, and Titanium, Zirconium, and Hafnium 1st Edition. ...
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A radioactive form of yttrium may be attached to a monoclonal antibody or other molecule that can locate and bind to cancer ... yttrium listen (IH-tree-um) A metal of the rare earth group of elements. A radioactive form of yttrium may be attached to a ...
Yttrium-catalysed dehydrocoupling of alanes with amines Adi E. Nako,a Sarah J. Gates,a Nicole Schädel,a Andrew J. P. Whitea and ... Yttrium-catalysed dehydrocoupling of alanes with amines A. E. Nako, S. J. Gates, N. Schädel, A. J. P. White and M. R. Crimmin, ...
... Registries: yttrium(+3) cation trisulfide
To see a rotating video of (almost) any of the samples of Yttrium from The Elements, click it below. Links will open in a new ...
... the United States Yttrium Oxide market is valued at USD XX million in 2016 and is expected to reach USD XX million by the end ... United States Yttrium Oxide Market Report 2017. 1 Yttrium Oxide Overview. 1.1 Product Overview and Scope of Yttrium Oxide. 1.2 ... 4.2 United States Yttrium Oxide Revenue and Market Share by Type (2012-2017). 4.3 United States Yttrium Oxide Price by Type ( ... 3.2 United States Yttrium Oxide Revenue and Market Share by Region (2012-2017). 3.3 United States Yttrium Oxide Price by Region ...
Sintered yttria and sintered dysprosia can be used to make single- component thermistors having typical thermistor geometries ... C for an yttria disk thermistor 12 mm in diameter and 2 mm thick are a resistance of 12.4 Megohms and a temperature coefficient ... Sintered yttria and sintered dysprosia can be used to make single- component thermistors having typical thermistor geometries ...
Preliminary chemical analysis shows that these nanocrystals are rich in aluminum and yttrium and poor in oxygen relative to the ... Hunt, E.M.; Hampikian, J.M. & Poker, D.B. Nanocrystal formation via yttrium ion implantation into sapphire, article, December ... Preliminary chemical analysis shows that these nanocrystals are rich in aluminum and yttrium and poor in oxygen relative to the ...
  • and yttrium oxide-stabilized cubic zirconia is used in oxygen sensors, structural ceramics , thermal barrier coatings, and synthetic diamonds . (britannica.com)
  • Solutions of yttria salts in their behaviour to reagents are not unlike those of zirconia. (wikisource.org)
  • This research focused on the study of using Spark Plasma Sintering (SPS) process to prepare Yttria Stabilized Zirconia (YSZ) ceramic. (sae.org)
  • Yttria-stabilized zirconia (YSZ) is the most commonly used solid electrolyte for solid oxide fuel cells (SOFCs) and oxygen sensors. (sigmaaldrich.com)
  • In this study, the authors investigated the effect of pressure on the ionic conductivity of a 9.5 mol% yttria-stabilized zirconia (YSZ) single crystal. (unt.edu)
  • Yttria stabilized zirconia (YSZ) is the state of the art ceramic top coat material used for TBC applications. (dissertations.se)
  • Here, we perform molecular dynamics simulation on cubic ZrO 2 and yttria-stabilized zirconia (YSZ) to elucidate defect cluster formation resulting from radiation damage, and evaluate the impact of Y-dopants. (osti.gov)
  • OBJECTIVES: The aim of this study was to evaluate strengthening mechanisms of yttria-stabilized zirconia (YSZ) thin film coatings as a viable method for improving fracture toughness of all-ceramic dental restorations. (rti.org)
  • That element was later given the name yttrium. (encyclopedia.com)
  • The name yttrium originated from a Swedish village near Vaxholm called Yttbery where it was discovered. (americanelements.com)
  • [14] Chemically, yttrium resembles those elements more closely than its neighbor in the periodic table, scandium , [15] and if physical properties were plotted against atomic number , it would have an apparent number of 64.5 to 67.5, placing it between the lanthanides gadolinium and erbium . (wikipedia.org)
  • Yttria, the first rare earth to be discovered, turned out to be a mixture of oxides from which, over a span of more than a century, nine elements-yttrium, scandium ( atomic number 21), and the heavy lanthanide metals from terbium (atomic number 65) to lutetium (atomic number 71)-were separated. (britannica.com)
  • In yttrium , on the proto level, a 110 and b 63 both escape from the funnel, and behave as in scandium. (dictionary.com)
  • Scandium, yttrium, and the rare earth elements are often found together in nature. (encyclopedia.com)
  • Scandium, Yttrium and the 4 f and 5 f Elements, Excluding their Zero Oxidation State Complexes (F.T. Edelmann). (elsevier.com)
  • 2] M.K. Chong, K. Pita, C.H. Kam, Thermal annealing effect on Y2O3:Eu3+ phosphor films prepared by yttrium 2-methoxyethoxide sol-gel precursor, Materials Chemistry and Physics, 100 (2006) 329-332. (fz-juelich.de)
  • Exposure to yttrium compounds can cause lung disease in humans. (wikipedia.org)
  • Yttrium and its compounds have numerous uses. (britannica.com)
  • Yttrium compounds are used in optical glasses and as catalysts . (britannica.com)
  • TWA 1 mg/m 3 [*Note: The REL also applies to other yttrium compounds (as Y). (cdc.gov)
  • Radioembolization for hepatocellular carcinoma using Yttrium-90 microspheres: a comprehensive report of long-term outcomes. (nih.gov)
  • We assessed clinical outcomes of patients treated with intra-arterial yttrium-90 microspheres (Y90). (nih.gov)
  • Yttrium-90 will be given as biocompatible resin-based microspheres and will be introduced to the tumor(s) on one side of the liver through a catheter placed in the right or left hepatic artery. (clinicaltrials.gov)
  • Radiologic-pathologic correlation of hepatocellular carcinoma treated with internal radiation using yttrium-90 microspheres. (biomedsearch.com)
  • This research registry studies Yttrium Y 90 resin microspheres in collecting data from patients with liver cancer not capable of being removed by surgery (unresectable) for the radiation-emitting Selective Internal Radiation-Spheres (SIR-spheres) in non-resectable (RESIN) liver tumor registry. (clinicaltrials.gov)
  • Patients receiving Yttrium Y90 resin microspheres treatment as part of their overall oncologic management are added in the RESIN registry database to collect and document information including: patient demographics (gender/age), previous oncologic treatments, details of Yttrium Y90 resin microspheres treatment, and to track outcomes and complications. (clinicaltrials.gov)
  • Lanreotide (Somatuline® Depot) Injection and Yttrium-90 microspheres (SIR-Spheres®) each have FDA approval to treat patients with metastatic NETs. (centerwatch.com)
  • Radioembolization with yttrium-90 microspheres (SIR-Spheres® therapy) is FDA-approved for treating liver metastases from colorectal cancer. (centerwatch.com)
  • To assess prospectively the safety and efficacy of Yttrium-90 microspheres in patients with unresectable liver metastases from neuroendocrine tumors. (karger.com)
  • YB 25 crystals can be grown by heating a compressed pellet of yttria (Y 2 O 3 ) and boron powder to ~1700 °C. The YB 25 phase is stable up to 1850 °C. Above this temperature it decomposes into YB 12 and YB 66 without melting. (wikipedia.org)
  • Yttrium powder may react explosively with oxygen at high temperatures. (encyclopedia.com)
  • Powder precursors of yttrium ferrites, Y 3 Fe 5 O 12 (YIG) and YFeO 3 , were prepared by the sol-gel method through the Pechini route. (springer.com)
  • Metallic yttrium is obtainable as a dark grey powder by reducing the chloride with potassium, or by electrolysing the double chloride of yttrium and sodium. (wikisource.org)
  • Yttria, Y 2 O 3 , is a yellowish white powder, which at high temperatures radiates out a most brilliant while light. (wikisource.org)
  • Yttrium nitride Place of Origin:Hebei,China Brand Name:LEDPHOR CAS No.:25764-13-0 EINECS No.:247-248-8 Molecular Formula:YN Formula Weight:102.92g/mol Appearance:Black powder Particle Size(D50):3-5um/8-15um. (ecplaza.net)
  • Yttrium nitride is dark gray powder, which is a kind of rare earth nitrides. (ecplaza.net)
  • Yttrium Oxide, CAS number 1314-36-9 Physical and chemical properties: the molecular weight 255.8, white powder, density of 5.01, melting point 2410C , insoluble in water and alkali, dissolved in acid. (ecplaza.net)
  • As a means of creating dispersed multiphase oxide structures, high-energy milling has been used for pre-treating alumina-yttria powder mixtures before pressing and sintering. (dissertations.se)
  • Erbium, a rare metal found along with yttrium , terbium, and other rare elements in some rare minerals. (dictionary.com)
  • A rare metal found by Prof. Mosander, associated with erbium and yttrium in ordinary yttria. (dictionary.com)
  • A precursor composition of TiO2 doped with erbium (Er) and yttrium (Y) for forming a film used in a planar optical waveguide amplifier. (google.es)
  • The precursor composition includes 100 mol % TiO2 precursor compound, about 0.1-10 mol % erbium ion (Er3+) precursor compound, and about 1-50 mol % yttrium ion (Y3+). (google.es)
  • A precursor composition of TiO 2 doped with erbium (Er) and yttrium (Y) for forming a film used in a planar optical waveguide amplifier. (google.es)
  • The precursor composition includes 100 mol % TiO 2 precursor compound, about 0.1-10 mol % erbium ion (Er 3+ ) precursor compound, and about 1-50 mol % yttrium ion (Y 3+ ) precursor compound, thereby forming a doped TiO 2 film co-doped with erbium and yttrium an amorphous structure to achieve the enhancing effect on photoluminescence properties. (google.es)
  • thereby forming a doped TiO 2 film co-doped with erbium and yttrium as an amorphous structure to achieve the enhancing effect on photoluminescence properties. (google.es)
  • The present invention relates to a TiO 2 film co-doped with yttrium and erbium and a method for producing the yttrium and erbium co-doped TiO 2 film, and more particularly to an yttrium and erbium co-doped TiO 2 film used in a planar optical waveguide amplifier. (google.es)
  • Objective: The purpose of this study was to evaluate the effect of erbium:yttrium-aluminum-garnet laser instrumentation of root surfaces on the morphology of fibroblasts from continuous lineage. (quintpub.com)
  • One of the most popular lasers is made of yttrium, aluminum, and garnet. (encyclopedia.com)
  • Wu YJ, Gao Y, Chen XM (2007) Dielectric relaxations of yttrium iron garnet ceramics over a broad temperature range. (springer.com)
  • Rajendran M, Deka S, Joy PA, Bhattacharya AK (2006) Size-dependent magnetic properties of nanocrystalline yttrium iron garnet powders. (springer.com)
  • Yttrium oxide and iron oxide combine to form a crystal garnet used in radars. (environmentalchemistry.com)
  • The yttrium for the most part is in the form of a yttrium aluminum garnet. (google.es)
  • 2. The ceramic abrasive grits of claim 1 wherein said yttria is in the form of a garnet phase. (google.es)
  • Subtotal canine prostatectomy with the neodymium: yttrium-aluminum-garnet laser. (curehunter.com)
  • Background Neodymium-yttrium-aluminium-garnet (Nd:YAG) laser vitreolysis has been proposed as a treatment modality for symptomatic vitreous floaters. (bmj.com)
  • Agardite is also known officially by two names called agardite-(Y) and agardite-(La) to denote the increased abundance, in these minerals, of the elements yttrium and lanthanum respectively. (galleries.com)
  • shavings or turnings of the metal can ignite in air at temperatures exceeding 400 °C. [7] Yttrium nitride (YN) is formed when the metal is heated to 1000 °C in nitrogen . (wikipedia.org)
  • So yttrium nitride can apply to refractory materials like titanium nitride and zirconium nitride . (ecplaza.net)
  • In this paper, the microstructure and mechanical properties of yttrium oxide dispersed 90W-7Ni-3Fe alloy were studied. (scientific.net)
  • Celiac artery stenting to facilitate hepatic yttrium-90 radioembolization therapy. (harvard.edu)
  • Determine the maximum tolerated dose of yttrium Y 90 ibritumomab tiuxetan in patients with Waldenstrom's macroglobulinemia. (knowcancer.com)
  • Monoclonal antibodies have shown potential to act as therapeutic agents and have shown efficacy especially with hematologic malignancies as evidenced by the approval of rituximab and more recently of yttrium-90-labeled ibritumomab tiuxetan for low-grade non-Hodgkin's lymphoma ( 1 - 3 ). (aacrjournals.org)
  • This randomized phase III trial studies 90-yttrium ibritumomab tiuxetan and combination chemotherapy compared with combination chemotherapy alone before stem cell transplant in treating patients with diffuse large b-cell non-Hodgkin lymphoma that has returned after a period of improvement. (mayo.edu)
  • Radioactive substances linked to monoclonal antibodies, such as 90-yttrium ibritumomab tiuxetan, can bind to cancer cells and give off radiation which may help kill cancer cells. (mayo.edu)
  • It is not yet known whether 90-yttrium ibritumomab tiuxetan and BEAM before a stem cell transplant are more effective than BEAM alone in treating patients with diffuse large b-cell non-Hodgkin lymphoma. (mayo.edu)
  • Application: Yttrium Oxide , also called Yttria , high purity Yttrium Oxides are the most important materials for tri-bands Rare Earth phosphors which give the red colour in colour television & computer tubes. (hfcletter.com)
  • 4. The precursor composition according to claim 1 , wherein said yttrium ion (Y 3+ ) precursor compound is selected from a group consisting of yttrium acetate, yttrium carbonate, yttrium chloride, yttrium oxalate, yttrium nitrate, and yttrium isopropoxide. (google.es)
  • YSZ particles may be synthesized from yttrium nitrate or isopropoxide by sol gel method. (sigmaaldrich.com)
  • Solid yttrium metal does not react with oxygen in the air. (encyclopedia.com)
  • Yttrium has the highest thermodynamic affinity for oxygen of any element. (americanelements.com)
  • The nanocrystals are randomly oriented and exhibit a face-centered cubic structure with a lattice parameter of {approximately}4.1 A {+-} .02 A. Preliminary chemical analysis shows that these nanocrystals are rich in aluminum and yttrium and poor in oxygen relative to the amorphous matrix. (unt.edu)
  • In this work, the composition of oxygen-containing yttrium hydride (YHO) thin films was investigated. (ife.no)
  • As revealed in the study, the coatings with a thickness of 50 - 80 μm are highly rough and porous, they have a sub-micro- and nano-scaled multiph ase structure with particles of silicon, Y 2 O 3 , YSi 2 and Y 2 Si 2 O 7 as strengthening phases, and alloying elements (silicon, yttrium, and oxygen) don't tend to spread homogenously in them. (srce.hr)
  • Yttrium is a silvery white, moderately soft, ductile metal . (britannica.com)
  • In its elemental form, Yttrium has a silvery white metallic appearance. (americanelements.com)
  • The most important uses of yttrium are LEDs and phosphors , particularly the red phosphors in television set cathode ray tube (CRT) displays. (wikipedia.org)
  • Thermodynamic study of lanthanide(III) complexes with bifunctional monophosphinic acid analogues of H4dota and comparative kinetic study of yttrium(III) complexes. (biomedsearch.com)
  • As with other elements, the abundance of yttrium is quite different in other parts of the solar system. (encyclopedia.com)
  • An investigation was made of various methods for the preparation of yttrium or rare-earth metals by metallothermic reduction. (oregonstate.edu)
  • A total of 33 (excluding nuclear isomers) radioactive isotopes of yttrium ranging in mass from 77 to 109 and half-life from 41 milliseconds (yttrium-108) to 106.63 days (yttrium-88) have been reported. (britannica.com)
  • A radioactive form of yttrium may be attached to a monoclonal antibody or other molecule that can locate and bind to cancer cells and be used to diagnose or treat some types of cancer. (cancer.gov)
  • There are no evaluations for Radioactive Yttrium injection in Right Knee. (patientslikeme.com)
  • This works with tiny glass or resin beads filled with the radioactive isotope yttrium-90 (Y-90). (clinicaltrials.gov)
  • The yttrium sites have partial occupancies of ca. 60-70%, and the YB 25 formula merely reflects the average atomic ratio [B]/[Y] = 25. (wikipedia.org)
  • Klimisch 1), yttrium trinitrate was demonstrated to be negative for mutagenicity with and without metabolic activation under the conditions of the test. (europa.eu)
  • Klimisch 1), yttrium trinitrate was demonstrated to be non-clastogenic with and without metabolic activation under the conditions of the test. (europa.eu)
  • Sánchez RD, Rivas J, Vaqueiro P, Caeiro D (2002) Particle size effects on magnetic properties of yttrium iron garnets prepared by a sol-gel method. (springer.com)
  • In optical industry, the Yttrium Oxide is used to produce yttrium-iron-garnets, which are very effective microwave filters. (hfcletter.com)
  • The similarities of yttrium to the lanthanides are so strong that the element has historically been grouped with them as a rare-earth element , [5] and is always found in nature together with them in rare-earth minerals . (wikipedia.org)
  • Yttrium is not found in nature as a free element and is almost always found combined with the lanthanides in rare earth minerals. (americanelements.com)
  • In this report, the United States Yttrium Oxide market is valued at USD XX million in 2016 and is expected to reach USD XX million by the end of 2022, growing at a CAGR of XX% between 2016 and 2022. (mynewsdesk.com)
  • In this report, the global Yttrium market is valued at USD XX million in 2016 and is expected to reach USD XX million by the end of 2022, growing at a CAGR of XX% between 2016 and 2022. (aarkstore.com)
  • The report then estimates 2016-2021 market development trends of Yttria oxide industry. (marketresearch.com)
  • Elemental yttrium was first isolated in 1828 by Friedrich Wöhler . (wikipedia.org)
  • Single Element Lumina ™ Hollow Cathode Lamp (HCL) for the detection of elemental Yttrium (Y). Please note that this lamp requires the use of a nitrous oxide-acetylene flame. (perkinelmer.com)
  • Objectives Yttrium-90 (Y90)-radioembolisation (RE) significantly regresses locally advanced hepatocellular carcinoma and delays disease progression. (bmj.com)
  • Yttrium-90 (Y90)-radioembolisation (RE) is a treatment for locally advanced hepatocellular carcinoma (HCC) that is not eligible for surgical resection or transplantation. (bmj.com)
  • There are two principal applications for doped Yttrium orthovanadate: Doped with neodymium it forms Nd:YVO4, an active laser medium used in diode-pumped solid-state lasers. (wikipedia.org)
  • Yttrium, cerium, neodymium and lanthanum belong to a group of elements called rare earth metals. (galleries.com)
  • The results demonstrate that the new bifunctional ligands are suitable for labelling biomolecules with yttrium(iii) radioisotopes for utilization in nuclear medicine. (biomedsearch.com)
  • Treatment of Nelson's syndrome by pituitary implantation of yttrium-90 or gold-198. (bmj.com)
  • Between 1960 and 1976 117 patients underwent pituitary implantation with yttrium-90 (90Y) for treatment of proliferative retinopathy at the Hammersmith Hospital, London. (nih.gov)
  • Yttrium is a soft, silver-metallic, lustrous and highly crystalline transition metal in group 3 . (wikipedia.org)
  • Yttrium boride refers to a crystalline material composed of different proportions of yttrium and boron , such as YB 2 , YB 4 , YB 6 , YB 12 , YB 25 , YB 50 and YB 66 . (wikipedia.org)
  • Yttrium Arsenide is a crystalline solid used as a semiconductor and in photo optic applications. (americanelements.com)
  • To the best of our knowledge the chemical, physical and toxicological properties of yttrium chloride have not been thoroughly investigated and recorded. (espimetals.com)
  • YTTRIUM CHLORIDE HEXAHYDRATE (CAS 10025-94-2) Market Research Report 2018 aims at providing comprehensive data on yttrium chloride hexahydrate market globally and regionally (Europe, Asia, North America, Latin America etc. (marketpublishers.com)
  • The report includes yttrium chloride hexahydrate description, covers its application areas, manufacturing methods, patents. (marketpublishers.com)
  • It captures yttrium chloride hexahydrate market trends, pays close attention to yttrium chloride hexahydrate manufacturers and names suppliers. (marketpublishers.com)
  • Besides, the report provides yttrium chloride hexahydrate prices in regional markets. (marketpublishers.com)
  • In addition to the above the report determines yttrium chloride hexahydrate consumers. (marketpublishers.com)
  • YTTRIUM CHLORIDE HEXAHYDRATE (CAS 10025-94-2) Market Research Report 2018 contents were worked out and placed on the website in February, 2018. (marketpublishers.com)
  • Please note that YTTRIUM CHLORIDE HEXAHYDRATE (CAS 10025-94-2) Market Research Report 2018 is a half ready publication and contents are subject to change. (marketpublishers.com)
  • Aluminum-yttrium-nickel alloy to be tested for aircraft. (highbeam.com)
  • a href="https://www.highbeam.com/doc/1G1-145058450.html" title="Aluminum-yttrium-nickel alloy to be tested for aircraft. (highbeam.com)
  • About 400 pounds of an aluminum-yttrium-nickel alloy that will serve as a benchmark for testing and to help refine commercial production techniques is to be produced over the next few months by researchers at Ames Laboratory's Materials Preparation Center, Ames, Iowa. (highbeam.com)
  • S.V. Konovalov, D.V. Zagulyaev, Y.F. Ivanov i V.E. Gromov, "Effect of yttrium oxide modification of Al-Si alloy on microhardness and microstructure of surface layers", Metalurgija , vol.57, br. (srce.hr)
  • Yttrium is often used to make alloys with other metals. (encyclopedia.com)
  • Yttrium has a bright, silvery surface, like most other metals. (encyclopedia.com)
  • Yttrium and rare-earth metals prepared in this study were consolidated, usually by inert-atmosphere arc melting, and the consolidated metals were evaluated on the basis of chemical analyses and mechanical workability. (oregonstate.edu)
  • In 2009, N rskov and co-workers published groundbreaking findings on catalysts made of platinum alloyed with early transition metals, including yttrium. (nanowerk.com)
  • The main goal of the Phase Ib portion of this research study is to see at what time Yttrium-90 (Y-90) radioembolization therapy and nivolumab can safely be given to patients without having too many side effects. (clinicaltrials.gov)
  • Yttrium is a chemical element with the symbol Y and atomic number 39. (wikipedia.org)
  • Yttrium (atomic symbol: Y, atomic number: 39) is a Block D, Group 3, Period 5 element with an atomic weight of 88.90585. (americanelements.com)
  • In 1794 Finnish chemist Johan Gadolin isolated yttria, a new earth or metallic oxide , from a mineral found at Ytterby, Sweden . (britannica.com)
  • Yttrium is one of four elements named for the same small town of Ytterby, Sweden . (encyclopedia.com)
  • Commercially, yttrium is separated from the other rare earths by liquid-liquid or ion-exchange extraction, and the metal is produced by metallothermic reduction of the anhydrous fluoride with calcium . (britannica.com)
  • The ' Global and Chinese Yttria oxide Industry, 2011-2021 Market Research Report ' is a professional and in-depth study on the current state of the global Yttria oxide industry with a focus on the Chinese market. (marketresearch.com)
  • Through the statistical analysis, the report depicts the global and Chinese total market of Yttria oxide industry including capacity, production, production value, cost/profit, supply/demand and Chinese import/export. (marketresearch.com)
  • In the end, the report makes some important proposals for a new project of Yttria oxide Industry before evaluating its feasibility. (marketresearch.com)
  • Overall, the report provides an in-depth insight of 2011-2021 global and Chinese Yttria oxide industry covering all important parameters. (marketresearch.com)
  • 5.2 Market Competition of Yttria oxide Industry by Country (USA, EU, Japan, Chinese etc. (marketresearch.com)
  • Low purity of Yttrium Oxide are widely applied in electronic ceramics. (hfcletter.com)
  • Then Swedish chemist Carl Gustav Mosander (1797-1858) discovered that yttrium was not a single pure substance. (encyclopedia.com)
  • Yttrium was discovered by Johann Gadolin in 1794 and first isolated by Carl Gustav Mosander in 1840. (americanelements.com)
  • Yttrium has a melting point of 1,509 ° C (2,748 ° F) and a boiling point of about 3,000 ° C (5,400 F). Its density is 4.47 grams per cubic centimeter. (encyclopedia.com)
  • Johan Gadolin discovered yttrium's oxide in Arrhenius' sample in 1789, [6] and Anders Gustaf Ekeberg named the new oxide yttria . (wikipedia.org)
  • Besides the white sesquioxide, yttrium forms a series of nearly white salts including the sulfate , the trichloride, and the carbonate. (britannica.com)
  • Eight patients with Nelson's syndrome were treated with a pituitary implant of yttrium-90 or gold-198 four to 16 years after adrenal surgery. (bmj.com)
  • PURPOSE: Phase I trial to study the effectiveness of yttrium Y 90 SMT 487 in treating patients who have refractory or recurrent cancer. (clinicaltrials.gov)
  • OBJECTIVES: I. Determine the maximum tolerated dose of yttrium Y 90-SMT 487 in patients with recurrent malignant neoplasms that prove positive for somatostatin receptors. (clinicaltrials.gov)
  • Patients then receive yttrium Y 90-SMT 487 IV over 15 minutes on day 1. (clinicaltrials.gov)
  • Patients are evaluated on days 2 and 7, and at weeks 4 and 6, following each injection of yttrium Y 90-SMT 487. (clinicaltrials.gov)
  • To determine the maximum tolerated dose of combined therapy using an yttrium-90-labeled anti-carcinoembryonic antigen (CEA) antibody with gemcitabine in patients with advanced CEA-producing solid tumors. (aacrjournals.org)
  • Patients were treated with escalating doses of gemcitabine given i.v. over 30 minutes on day 1 and 3 after the infusion of the yttrium-90-labeled antibody. (aacrjournals.org)
  • A recent study has shown the feasibility of combining a 120-hour infusion of 5-fluorouracil with the anti-CEA yttrium-labeled IgG1 murine monoclonal antibody designated T84.66 ( 6 ). (aacrjournals.org)
  • YSZ nanoparticles of different sizes with varying % mol of yttria may be obtained by CO 2 laser based continuous/pulsed laser vaporization method. (sigmaaldrich.com)
  • In addition to Gadolin's yttrium, Mosander found two more elements. (encyclopedia.com)
  • [5] Yttrium is almost always found in combination with lanthanide elements in rare-earth minerals , and is never found in nature as a free element. (wikipedia.org)
  • Yttrium occurs in most rare earth minerals. (encyclopedia.com)