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SiliconOrganosilicon CompoundsSilicon CompoundsCarbon Compounds, InorganicSilicon DioxideNanowiresSemiconductorsNanotechnologyPorosityTransistors, ElectronicGermaniumSilicic AcidElectronicsSilanesSurface PropertiesSolar EnergyBiosensing TechniquesNanostructuresMolecular StructureEquipment DesignMicro-Electrical-Mechanical SystemsMicrotechnologySiliconesMicroscopy, Electron, ScanningSulfur CompoundsHafniumDiatomsPoaMiniaturizationVolatile Organic CompoundsEquipment Failure AnalysisNanoporesLab-On-A-Chip DevicesOptical DevicesComb and WattlesIllusionsPatents as TopicHydrazinesPhosphoric AcidsHydrocarbons, AcyclicRadiochemistryHydrazonesIodine IsotopesRubberSilicone ElastomersSilicone OilsLegislation, PharmacyPalladiumAlkenesLewis BasesSolventsStereoisomerism
Silicon: A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight [28.084; 28.086].Organosilicon Compounds: Organic compounds that contain silicon as an integral part of the molecule.Silicon Compounds: Inorganic compounds that contain silicon as an integral part of the molecule.Carbon Compounds, Inorganic: Inorganic compounds that contain carbon as an integral part of the molecule but are not derived from hydrocarbons.Silicon Dioxide: Transparent, tasteless crystals found in nature as agate, amethyst, chalcedony, cristobalite, flint, sand, QUARTZ, and tridymite. The compound is insoluble in water or acids except hydrofluoric acid.Nanowires: Nanometer-scale wires made of materials that conduct electricity. They can be coated with molecules such as antibodies that will bind to proteins and other substances.Semiconductors: Materials that have a limited and usually variable electrical conductivity. They are particularly useful for the production of solid-state electronic devices.Nanotechnology: The development and use of techniques to study physical phenomena and construct structures in the nanoscale size range or smaller.Porosity: Condition of having pores or open spaces. This often refers to bones, bone implants, or bone cements, but can refer to the porous state of any solid substance.Transistors, Electronic: Electrical devices that are composed of semiconductor material, with at least three connections to an external electronic circuit. They are used to amplify electrical signals, detect signals, or as switches.Germanium: A rare metal element with a blue-gray appearance and atomic symbol Ge, atomic number 32, and atomic weight 72.63.Silicic Acid: A hydrated form of silicon dioxide. It is commonly used in the manufacture of TOOTHPASTES and as a stationary phase for CHROMATOGRAPHY.Electronics: The study, control, and application of the conduction of ELECTRICITY through gases or vacuum, or through semiconducting or conducting materials. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Silanes: Compounds similar to hydrocarbons in which a tetravalent silicon atom replaces the carbon atom. They are very reactive, ignite in air, and form useful derivatives.Surface Properties: Characteristics or attributes of the outer boundaries of objects, including molecules.Solar Energy: Energy transmitted from the sun in the form of electromagnetic radiation.Biosensing Techniques: Any of a variety of procedures which use biomolecular probes to measure the presence or concentration of biological molecules, biological structures, microorganisms, etc., by translating a biochemical interaction at the probe surface into a quantifiable physical signal.Nanostructures: Materials which have structured components with at least one dimension in the range of 1 to 100 nanometers. These include NANOCOMPOSITES; NANOPARTICLES; NANOTUBES; and NANOWIRES.Molecular Structure: The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds.Equipment Design: Methods of creating machines and devices.Micro-Electrical-Mechanical Systems: A class of devices combining electrical and mechanical components that have at least one of the dimensions in the micrometer range (between 1 micron and 1 millimeter). They include sensors, actuators, microducts, and micropumps.Microtechnology: Manufacturing technology for making microscopic devices in the micrometer range (typically 1-100 micrometers), such as integrated circuits or MEMS. The process usually involves replication and parallel fabrication of hundreds or millions of identical structures using various thin film deposition techniques and carried out in environmentally-controlled clean rooms.Silicones: A broad family of synthetic organosiloxane polymers containing a repeating silicon-oxygen backbone with organic side groups attached via carbon-silicon bonds. Depending on their structure, they are classified as liquids, gels, and elastomers. (From Merck Index, 12th ed)Microscopy, Electron, Scanning: Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.Sulfur Compounds: Inorganic or organic compounds that contain sulfur as an integral part of the molecule.Hafnium: Hafnium. A metal element of atomic number 72 and atomic weight 178.49, symbol Hf. (From Dorland, 28th ed)Diatoms: The common name for the phylum of microscopic unicellular STRAMENOPILES. Most are aquatic, being found in fresh, brackish, and salt water. Diatoms are noted for the symmetry and sculpturing of their siliceous cell walls. They account for 40% of PHYTOPLANKTON, but not all diatoms are planktonic.Poa: A plant genus of the family POACEAE that contains the Poa p Ia allergen and allergen C KBGP.Miniaturization: The design or construction of objects greatly reduced in scale.Volatile Organic Compounds: Organic compounds that have a relatively high VAPOR PRESSURE at room temperature.Equipment Failure Analysis: The evaluation of incidents involving the loss of function of a device. These evaluations are used for a variety of purposes such as to determine the failure rates, the causes of failures, costs of failures, and the reliability and maintainability of devices.Nanopores: Small holes of nanometer dimensions in a membrane, that can be used as single molecule detectors. The pores can be biological or synthetic.Lab-On-A-Chip Devices: Microdevices that combine microfluidics technology with electrical and/or mechanical functions for analyzing very small fluid volumes. They consist of microchannels etched into substrates made of silicon, glass, or polymer using processes similar to photolithography. The test fluids in the channels can then interact with different elements such as electrodes, photodetectors, chemical sensors, pumps, and valves.Optical Devices: Products or parts of products used to detect, manipulate, or analyze light, such as LENSES, refractors, mirrors, filters, prisms, and OPTICAL FIBERS.Comb and Wattles: Fleshy and reddish outgrowth of skin tissue found on top of the head, attached to the sides of the head, and hanging from the mandible of birds such as turkeys and chickens.Illusions: The misinterpretation of a real external, sensory experience.Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.HydrazinesPhosphoric Acids: Inorganic derivatives of phosphoric acid (H3PO4). Note that organic derivatives of phosphoric acids are listed under ORGANOPHOSPHATES.Hydrocarbons, Acyclic: Organic compounds composed exclusively of carbon and hydrogen where no carbon atoms join to form a ring structure.Radiochemistry: The study of the chemical and physical phenomena of radioactive substances.Hydrazones: Compounds of the general formula R:N.NR2, as resulting from the action of hydrazines with aldehydes or ketones. (Grant & Hackh's Chemical Dictionary, 5th ed)Iodine Isotopes: Stable iodine atoms that have the same atomic number as the element iodine, but differ in atomic weight. I-127 is the only naturally occurring stable iodine isotope.Rubber: A high-molecular-weight polymeric elastomer derived from the milk juice (LATEX) of HEVEA brasiliensis and other trees and plants. It is a substance that can be stretched at room temperature to at least twice its original length and after releasing the stress, retract rapidly, and recover its original dimensions fully.Silicone Elastomers: Polymers of silicone that are formed by crosslinking and treatment with amorphous silica to increase strength. They have properties similar to vulcanized natural rubber, in that they stretch under tension, retract rapidly, and fully recover to their original dimensions upon release. They are used in the encapsulation of surgical membranes and implants.Silicone Oils: Organic siloxanes which are polymerized to the oily stage. The oils have low surface tension and density less than 1. They are used in industrial applications and in the treatment of retinal detachment, complicated by proliferative vitreoretinopathy.Legislation, Pharmacy: Laws and regulations, pertaining to the field of pharmacy, proposed for enactment or enacted by a legislative body.Palladium: A chemical element having an atomic weight of 106.4, atomic number of 46, and the symbol Pd. It is a white, ductile metal resembling platinum, and following it in abundance and importance of applications. It is used in dentistry in the form of gold, silver, and copper alloys.Alkenes: Unsaturated hydrocarbons of the type Cn-H2n, indicated by the suffix -ene. (Grant & Hackh's Chemical Dictionary, 5th ed, p408)Lewis Bases: Any chemical species which acts as an electron-pair donor in a chemical bonding reaction with a LEWIS ACID.Solvents: Liquids that dissolve other substances (solutes), generally solids, without any change in chemical composition, as, water containing sugar. (Grant & Hackh's Chemical Dictionary, 5th ed)Stereoisomerism: The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)

Influence of fibre length, dissolution and biopersistence on the production of mesothelioma in the rat peritoneal cavity. (1/180)

A range of respirable man-made mineral fibres were tested for evidence of carcinogenicity by injection into the peritoneal cavity of male SPF Wistar rats; and differences in carcinogenicity were related to the dimensions and biopersistence of the injected fibres. The fibres tested included an amosite asbestos, a silicon carbide whisker, a special purpose glass microfibre, and a range of other man-made vitreous fibres (MMVFs) and refractory ceramic fibres (RCFs) from the TIMA fibre repository. The injected dose of each was designed as the estimated mass required to contain 10(9) fibres > 5 microns in length, as determined by optical microscopy. The numbers of long fibres (> 15 microns) contained in these doses ranged across fibres from 0.1 x 10(9) to 0.8 x 10(9) fibres; the number of long fibres thinner than 0.95 micron ranged from 0.015 x 10(9) to 0.4 x 10(9). The treatment groups contained between 18 and 24 animals. Animals were killed when they showed signs of debilitation. At autopsy, the diagnosis of mesothelioma was usually obvious macroscopically. Otherwise, histological examination of peritoneal organs was used to search for early tumour development. Judged by median survival time, four of the fibre types, in the doses administered, presented higher mesothelioma activity than amosite asbestos. The other fibres tested were less carcinogenic than the amosite. Only a ceramic material derived by extreme heating to simulate the effect of furnace or oven conditions, produced no mesotheliomas. Attempts were made, using regression models, to relate these differences to fibre dimensions and to measures of durability from separate experiments. The results pointed principally to a link with the injected numbers of fibres > 20 microns in length and with biopersistence in the rat lung of fibres longer than 5 microns. Improved quantification of the relative importance of fibre dimensions and biopersistence indices requires experimentation with a range of doses.  (+info)

Depletion of glutathione and ascorbate in lung lining fluid by respirable fibres. (2/180)

OBJECTIVE: The use of synthetic vitreous fibres has increased along with a decline in the utilisation of asbestos. There remains concern that these synthetic fibres pose a health risk to workers because of the generation of respirable fibres which can enter the lung and cause adverse health effects. An improved understanding of the mechanism of fibre pathogenicity should allow more rational short-term testing regimes for new fibres as they are developed. We hypothesised that carcinogenic fibres have greater free radical activity compared with non-carcinogenic fibres and that they contribute to disease by causing oxidative stress in the lung. We examined a panel of respirable fibres, designated as being carcinogenic or non-carcinogenic based on previous animal studies for ability to deplete antioxidants from lung lining fluid. METHODS: On the basis of inhalation studies, a panel of fibres was divided into three carcinogenic fibres-amosite asbestos, silicon carbide, and refractory ceramic fibre 1 (RCF1) and three non-carcinogenic fibres-man-made vitreous fibre 10 (a glass fibre MMVF10), Code 100/475 glass fibre, and refractory ceramic fibre 4 (RCF4). We measured the levels of glutathione (GSH) and ascorbate, two antioxidants present in lung lining fluid (LLF) after fibre treatment. All of the experiments were carried out at equal fibre number. RESULTS: Fibres had the ability to deplete both GSH and ascorbate from both LLF and pure solutions, an effect which was fibre number dependent. The greatest depletion of antioxidants was observed with the two non-carcinogenic glass fibres, and this effect was observed when A549 lung epithelial cells were treated with fibres. CONCLUSIONS: Our results show that antioxidant depletion in cell free solution and lung lining fluid solely is not a simple indicator of the ability of fibres to cause lung pathology and that other biological events in the lung are involved.  (+info)

Magnetometric evaluation for the effects of silicon carbide whiskers on alveolar macrophages. (3/180)

Alveolar macrophages are thought to play an important role in fibrogenesis in the lungs caused by various types of exposure to dust. In this experiment, we evaluated the effect of silicon carbide whiskers (SiC) on alveolar macrophages mainly by unique magnetometry and also by established methods such as lactate dehydrogenase (LDH) activity, apoptosis measurement and morphological observations. Alveolar macrophages obtained from Syrian golden hamsters by bronchoalveolar lavages were exposed in vitro to Fe3O4 for 18 hours as an indicator for magnetometry and SiC for experiments. A rapid decrease of the remanent magnetic field, so called "relaxation", was observed after cessation of an external magnetic field in macrophages phagocytizing Fe3O4 alone, while relaxation was delayed in those concurrently exposed to SiC. Release of LDH from SiC-exposed macrophages into the medium was not significantly higher than the controls, but it increased dose-dependently. Apoptosis was recognized in macrophages exposed to 60 micrograms/ml of SiC by the DNA ladder detection method and morphological observations. Electron microscopic examination revealed irregular forms of nuclei and organellas in macrophages exposed to SiC. Magnetometry, LDH release and electron microscopic observation indicated mild cytotoxicity of SiC to alveolar macrophages.  (+info)

Origin of nanomechanical cantilever motion generated from biomolecular interactions. (4/180)

Generation of nanomechanical cantilever motion from biomolecular interactions can have wide applications, ranging from high-throughput biomolecular detection to bioactuation. Although it has been suggested that such motion is caused by changes in surface stress of a cantilever beam, the origin of the surface-stress change has so far not been elucidated. By using DNA hybridization experiments, we show that the origin of motion lies in the interplay between changes in configurational entropy and intermolecular energetics induced by specific biomolecular interactions. By controlling entropy change during DNA hybridization, the direction of cantilever motion can be manipulated. These thermodynamic principles were also used to explain the origin of motion generated from protein-ligand binding.  (+info)

Neutron reflection from a dimyristoylphosphatidylcholine monolayer adsorbed on a hydrophobised silicon support. (5/180)

Neutron specular reflection has been used to study the structure of a monolayer of dimyristoylphosphatidylcholine (DMPC) deposited using the Langmuir-Blodgett technique onto a silicon oxide substrate. A self-assembled monolayer of octadecyltrichlorosilane with a deuterated alkyl chain (d-OTS) had been previously bonded onto this silicon oxide substrate which rendered it hydrophobic. In the system under study, the alkyl chains of the phospholipid were found to penetrate extensively into the d-OTS layer with the mixed chain region (d-OTS and DMPC) having a total thickness of 30.5 A. This mixed region was divided into two halves for analysis; the 'lower half' (nearest to the substrate surface) was found to comprise anchored d-OTS chains mixed with the lipid chains in the volume ratio approx. 0.60:0.35. The corresponding volume ratio in the 'upper half' of this region was determined to be approx. 0.50:0.40. The thicknesses of these regions were found to be 17.9 A (incorporating approx. 6% solvent) and 12.6 A (incorporating approx. 9% solvent) for the lower and upper halves respectively. The DMPC head groups were found to be confined to the most external layer (furthest away from the silicon substrate). This layer was found to have a thickness of 9.4 A and included a small fraction of the lipid alkyl chains with approx. 47% solvent.  (+info)

Short term effect of silicon carbide whisker to the rat lung. (6/180)

We studied the short-term effect of silicon carbide whisker (SiCW) in vivo by instillation and inhalation to the rat lung. SiCW was instilled low dose (2 mg/0.5 ml saline) or high dose (10 mg/ 0.5 ml) intratracheally into the lungs of 25 rats. SiCW was also inhaled to another 25 rats at the average concentration of 10.4 mg/m3 for 1 month. In instillation study, the lung had focal alveolitis with the destruction of alveolar wall especially at 3 days after the instillation, and the lesion remained as an aggregated foci of SiCW at 6 months. The 'inflammation-score' of the instilled group by point counting method of the specimen correspondingly decreased gradually. In inhalation group, a minimum inflammatory change was observed. Collagen deposition in the aggregated foci of SiCW with accumulated alveolar macrophages and neutrophils was not progressive during the observed period. These findings suggest that SiCW may cause a minor effect to the rat lung in 6 months after exposure.  (+info)

Cancer incidence among workers in the Norwegian silicon carbide industry. (7/180)

The presence of silicon carbide (SiC) fibers in the SiC smelter work environment has suggested a possible cancer hazard. The authors studied cancer incidence among 2,620 men employed for more than 6 months in three Norwegian SiC smelters. Follow-up from 1953 to 1996 revealed an overall excess risk of lung cancer (standardized incidence ratio = 1.9, 95% confidence interval (CI): 1.5, 2.3) and an elevated risk of stomach cancer (standardized incidence ratio = 1.5, 95% CI: 1.1, 2.0). Both standardized incidence ratio and Poisson regression analyses showed that lung cancer risk increased according to cumulative exposure to total dust, SiC fibers, SiC particles, and crystalline silica. The standardized incidence ratio for the upper SiC fiber exposure category was 3.5 (95% CI: 2.1, 5.6) when exposure was lagged by 20 years, while the Poisson regression analysis showed a rate ratio of 4.4 (95% CI: 2.1, 9.0). Smoking did not seem to be an important confounder. The excess risk of lung cancer may be explained by exposure to SiC fibers, but a strong correlation between the different exposures made it difficult to distinguish between them.  (+info)

Silicon-based biosensors for rapid detection of protein or nucleic acid targets. (8/180)

BACKGROUND: We developed a silicon-based biosensor that generates visual, qualitative results or quantitative results for the detection of protein or nucleic acid targets in a multiplex format. METHODS: Capture probes were immobilized either passively or covalently on the optically coated surface of the biosensor. Intermolecular interactions of the immobilized capture probe with specific target molecules were transduced into a molecular thin film. Thin films were generated by enzyme-catalyzed deposition in the vicinity of the surface-bound target. The increased thickness on the surface changed the apparent color of the biosensor by altering the interference pattern of reflected light. RESULTS: Cytokine detection was achieved in a 40-min multiplex assay. Detection limits were 4 ng/L for interleukin (IL)-6, 31 ng/L for IL1-beta, and 437 ng/L for interferon-gamma. In multianalyte experiments, cytokines were specifically detected with signal-to-noise ratios ranging from 15 to 80. With a modified optical surface, specificity was also demonstrated in a nucleic acid array with unambiguous discrimination of single-base changes in a 15-min assay. For homozygous wild-type and homozygous mutant samples, signal-to-noise ratios of approximately 100 were observed. Heterozygous samples yielded approximately equivalent signals for wild-type and mutant capture probes. CONCLUSIONS: The thin-film biosensor allows rapid, sensitive, and specific detection of protein or nucleic acid targets in an array format with results read visually or quantified with a charge-coupled device camera. This biosensor is suited for multianalyte detection in clinical diagnostic assays.  (+info)

Patent US5914279 - Silicon nitride sidewall and top surface layer separating conductors - Google PatentsPatent US5914279 - Silicon nitride sidewall and top surface layer separating conductors - Google Patents
An integrated circuit includes a conductive structure (66) is formed with a top layer of silicon nitride (62) and silicon nitride (70) sidewalls on a semiconductor substrate. The layer of silicon nitride (70) covering the sidewalls of the conductive structure (66) intersect with the layer of silicon nitride on top of the conductive structure with a relatively square shoulder. A subsequently deposited conductor makes contact with the surface of the semiconductor substrate (56) without shorting to the conductive structure (66) on the semiconductor substrate.
Cell Culture on Silicon Nitride Membranes and Cryopreparation for Synchrotron X-ray Fluorescence Nano-analysis | ProtocolCell Culture on Silicon Nitride Membranes and Cryopreparation for Synchrotron X-ray Fluorescence Nano-analysis | Protocol
Presented here is a protocol for cell culture on silicon nitride membranes and plunge-freezing prior to X-ray fluorescence imaging with ...
OSA | Third-harmonic UV generation in silicon nitride nanostructuresOSA | Third-harmonic UV generation in silicon nitride nanostructures
We report on strong UV third-harmonic generation from silicon nitride films and resonant waveguide gratings. We determine the absolute value of third-order susceptibility of silicon nitride at wavelength of 1064 nm to be χ(3) (-3ω,ω,ω,ω) = (2.8 ± 0.6) × 10−20 m2/V2, which is two orders of magnitude larger than that of fused silica. The third-harmonic generation is further enhanced by a factor of 2000 by fabricating a resonant waveguide grating onto a silicon nitride film. Our results extend the operating range of CMOS-compatible nonlinear materials to the UV spectral regime.. ©2013 Optical Society of America. Full Article , PDF Article ...
OSA | Thermal and Kerr nonlinear properties of plasma-deposited silicon nitride/silicon dioxide waveguidesOSA | Thermal and Kerr nonlinear properties of plasma-deposited silicon nitride/silicon dioxide waveguides
We introduce and present experimental evaluations of loss and nonlinear optical response in a waveguide and an optical resonator, both implemented with a silicon nitride/silicon dioxide material platform prepared by plasma-enhanced chemical vapor deposition with dual frequency reactors that significantly reduce the stress and the consequent loss of the devices. We measure a relatively small loss of ~4dB/cm in the waveguides. The fabricated ring resonators in add-drop and all-pass arrangements demonstrate quality factors of Q=12,900 and 35,600. The resonators are used to measure both the thermal and ultrafast Kerr nonlinearities. The measured thermal nonlinearity is larger than expected, which is attributed to slower heat dissipation in the plasma-deposited silicon dioxide film. The n 2 for silicon nitride that is unknown in the literature is measured, for the first time, as 2.4×10-15cm2/W, which is 10 times larger than that for silicon dioxide.. ©2008 Optical Society of America. Full Article , ...
Shape Effect on the Reflectance of Sub-Wavelength Structures on Silicon Nitride for Solar Cell ApplicationShape Effect on the Reflectance of Sub-Wavelength Structures on Silicon Nitride for Solar Cell Application
Sub-wavelength structure (SWS) on anti-reflection coating instead of semiconductor surface can improve the efficiency of silicon solar cell has been studied both numerically and experimentally recently. The shape of the SWS may be somewhat variable and, therefore, a multilayer rigorous coupled-wave approach is advanced to investigate the reflection properties of silicon nitride (Si3N4) SWS for four different shaped SWS, assuming a hexagonal nipple lattice. In this study, we investigate the spectral reflectivity of silicon nitride (Si3N4) sub-wavelength structures (SWS) with different shapes. We vary the height of etched part
Preparation and characterization of autocatalytic low phosphorus nickel coatings containing submicron silicon nitride particles...Preparation and characterization of autocatalytic low phosphorus nickel coatings containing submicron silicon nitride particles...
This paper addresses the structural characteristics and phase transformation behavior of plain electroless Ni-P and Ni-P-Si3N4 composite coatings. Composite coatings were prepared using a low phosphorus electroless nickel bath containing 1 and 5 g/L submicron silicon nitride particles at pH 6.5 and temperature 85 +/- 2 degrees C. Deposition rate was around 6 mu m/h for both plain and composite coatings. The amount of silicon nitride particles codeposited in the Ni-P matrix is 3.5 wt.% (N1) and 4.5 wt.% (N2) with the addition of I and 5 g/L particles in the bath. Deposit surface composition analysis carried out by energy-dispersive analysis of X-ray (EDX) results shows that plain Ni-P and Ni-P-Si3N4 deposits are having around 3.5 wt.% phosphorus. The X-ray diffraction (XRD) patterns of Ni-P-Si3N4 coatings are very similar to that of plain electroless Ni-P coating in as-deposited condition. Presence of a single high intensity peak at 44.8 degrees 20 which corresponds to Ni(111) peak is present in ...
Patent US5897372 - Formation of a self-aligned integrated circuit structure using silicon-rich ... - Google PatentsPatent US5897372 - Formation of a self-aligned integrated circuit structure using silicon-rich ... - Google Patents
Silicon-rich silicon nitride is employed as a protective layer in a self-aligning etch. A thin layer of silicon-rich silicon nitride is deposited conformably over raised structures on a substrate. An etchable layer is then deposited, filling a space between the raised structures and providing a horizontal top surface. A mask layer is then formed on the etchable layer and patterned to expose an area of the etchable layer over the space between the raised structures. The etchable layer is then etched with an etchant selective to silicon nitride to remove the etchable layer from between the raised structures. Then the space between the raised structures is filled with a fill material, forming a self-aligned structure comprised of said fill material and self-aligned to the raised structures. The thin layer of silicon-rich silicon nitride resists the etch of the etchable layer better than the typical stoichiometric silicon nitride, providing increased selectivity, improving the reliability of the self
CRYSTALLISATION OF GRAIN BOUNDARY PHASES IN SILICON NITRIDE AND SIALON CERAMICS - WRAP: Warwick Research Archive PortalCRYSTALLISATION OF GRAIN BOUNDARY PHASES IN SILICON NITRIDE AND SIALON CERAMICS - WRAP: Warwick Research Archive Portal
UNSPECIFIED (1994) CRYSTALLISATION OF GRAIN BOUNDARY PHASES IN SILICON NITRIDE AND SIALON CERAMICS. In: NATO Advanced Research Workshop on Tailoring of High Temperature Properties of Si3N4 Ceramics, SCHLOSS RINGBERG, MUNICH, GERMANY, OCT 06-09, 1993. Published in: TAILORING OF MECHANICAL PROPERTIES OF SI3N4 CERAMICS, 276 pp. 217-231 ...
Takabatake, JP - Patent applicationsTakabatake, JP - Patent applications
Manufacturing method of liquid crystal display device - The present invention provides a liquid crystal display device having a large holding capacitance in the inside of a pixel. A liquid crystal display device includes a first substrate, a second substrate arranged to face the first substrate in an opposed manner, and liquid crystal sandwiched between the first substrate and the second substrate. The first substrate includes a video signal line, a pixel electrode, a thin film transistor having a first electrode thereof connected to the video signal line and a second electrode thereof connected to the pixel electrode, a first silicon nitride film formed above the second electrode, an organic insulation film formed above the first silicon nitride film, a capacitance electrode formed above the organic insulation film, and a second silicon nitride film formed above the capacitance electrode and below the pixel electrode. The second silicon nitride film is a film which is formed at a temperature ...
Bonding structure and hydrogen content in silicon nitride thin films deposited by the electron cyclotron resonance plasma...Bonding structure and hydrogen content in silicon nitride thin films deposited by the electron cyclotron resonance plasma...
Martinez, FL, Ruiz-Merino, R, del Prado, A, San Andres, E, Martil, I, Gonzalez-Diaz, G, Jeynes, C, Barradas, NP, Wang, L and Reehal, HS (2004) Bonding structure and hydrogen content in silicon nitride thin films deposited by the electron cyclotron resonance plasma method In: 8th European Vacuum Congress (EVC-8)/2nd Annual Conference of the German-Vacuum-Society (DVG), 2003-06-23 - 2003-06-26, Berlin, GERMANY. Full text not available from this repository ...
3M™ Silicon Nitride - High-Strength Industrial Ceramics | 3M United States3M™ Silicon Nitride - High-Strength Industrial Ceramics | 3M United States
High-strength, wear-resistant 3M™ Silicon Nitride Components and Materials provide a lightweight solution for the most demanding industrial applications.
Brevet US7382515 - Silicon-rich silicon nitrides as etch stops in MEMS manufacture - Google BrevetsBrevet US7382515 - Silicon-rich silicon nitrides as etch stops in MEMS manufacture - Google Brevets
The fabrication of a MEMS device such as an interferometric modulator is improved by employing an etch stop layer between a sacrificial layer and a an electrode. The etch stop may reduce undesirable over-etching of the sacrificial layer and the electrode. The etch stop layer may also serve as a barrier layer, buffer layer, and or template layer. The etch stop layer may include silicon-rich silicon nitride.
Synthesis, Characterization, and Catalytic Properties of High-Surface-Area Aluminum Silicon Nitride Based Materials :: MPG.PuRe...Synthesis, Characterization, and Catalytic Properties of High-Surface-Area Aluminum Silicon Nitride Based Materials :: MPG.PuRe...
Autor: Kaskel, S. et al.; Genre: Zeitschriftenartikel; Im Druck veröffentlicht: 2005; Titel: Synthesis, Characterization, and Catalytic Properties of High-Surface-Area Aluminum Silicon Nitride Based Materials
Silicon Nitride Components for Printing Equipment | 3M United StatesSilicon Nitride Components for Printing Equipment | 3M United States
Wear components made from 3M Silicon Nitride are a smart choice for hardworking, valuable printing equipment, ensuring more uptime for your presses.
METHOD FOR FABRICATING SEMICONDUCTOR DEVICE - Patent applicationMETHOD FOR FABRICATING SEMICONDUCTOR DEVICE - Patent application
0036]Next, a silicon oxide film having a thickness of 10 nm and a silicon nitride film having a thickness of 50 nm are formed on an entire surface of the semiconductor substrate 1 by CVD. Next, the silicon oxide film and the silicon nitride film are anisotropically etched by reactive ion etching (RIE) to form sidewall insulating films 5 made of the silicon oxide film and sidewall insulating films 6 made of the silicon nitride film on sidewall portions of the gate electrode 4. Next, using the gate electrode 4 and the sidewall insulating films 5 and 6 as a mask, a dopant impurity is introduced into regions of the semiconductor substrate 1 located on opposite sides of the gate electrode 4 and the sidewall insulating films 5 and 6 by ion implantation. Here, when an NMOS transistor is to be formed, arsenic is implanted as an n-type dopant impurity at an accelerating voltage of 20 keV and a dose of 5×1015 cm-2, for example. When a PMOS transistor is to be formed, boron is implanted as a p-type dopant ...
Patent US6344394 - Method of manufacturing a semiconductor memory device having a capacitor ... - Google PatentsPatent US6344394 - Method of manufacturing a semiconductor memory device having a capacitor ... - Google Patents
In the manufacture of a semiconductor memory device having a capacitor formed by arranging a dielectric film including two layers of a silicon oxide film and a silicon nitride film between two electrode films, a thin dielectric film is formed by forming the silicon nitride film on a silicon conductive film by thermally nitriding said silicon conductive film using NO gas, then laminating a silicon oxide film on said silicon nitride film by a CVD method. The erasing/writing speed of semiconductor memory devices, in particular of flash memories or the like, is improved.
Brevet US7932176 - Self-aligned barrier layers for interconnects - Google BrevetsBrevet US7932176 - Self-aligned barrier layers for interconnects - Google Brevets
An interconnect structure for integrated circuits incorporates manganese silicate and manganese silicon nitride layers that completely surrounds copper wires in integrated circuits and methods for making the same are provided. The manganese silicate forms a barrier against copper diffusing out of the wires, thereby protecting the insulator from premature breakdown, and protecting transistors from degradation by copper. The manganese silicate and manganese silicon nitride also promote strong adhesion between copper and insulators, thus preserving the mechanical integrity of the devices during manufacture and use. The strong adhesion at the copper-manganese silicate and manganese silicon nitride interfaces also protect against failure by electromigration of the copper during use of the devices. The manganese-containing sheath also protects the copper from corrosion by oxygen or water from its surroundings.
DIFFUSION REACTIONS BETWEEN SILICON OXYNITRIDE AND SILICON NITRIDE DURING HIP-SYNTHESIS | Supplément au Journal de Physique...DIFFUSION REACTIONS BETWEEN SILICON OXYNITRIDE AND SILICON NITRIDE DURING HIP-SYNTHESIS | Supplément au Journal de Physique...
Supplément au Journal de Physique Colloques, Journal de Physique Archives représente une mine dinformations facile à consulter sur la manière dont la physique a été publiée depuis 1872.
SINTX Technologies Announces Publication of Study to Reduce the Spread and Transfer of CoronavirusSINTX Technologies Announces Publication of Study to Reduce the Spread and Transfer of Coronavirus
SINTX Technologies, Inc. (NASDAQ: SINT) (SINTX or the Company), an original equipment manufacturer (OEM) ceramics company focused on silicon nitride and its applications, today announced positive testing results demonstrating the anti-viral properties of its silicon nitride which
Effect of microstructure on high-temperature compressive creep of self-reinforced hot-pressed silicon nitride - CaltechAUTHORSEffect of microstructure on high-temperature compressive creep of self-reinforced hot-pressed silicon nitride - CaltechAUTHORS
2000 The American Ceramic Society. Manuscript No. 189354. Received May 7, 1999; approved June 22, 2000. Based in part on the thesis submitted by M. A. Boling-Risser for the Ph.D. degree in materials science and engineering, Northwestern University, Evanston, Illinois, 1998. This research was supported by the U.S. Department of Energy, and by Argonne National Laboratorys Division of Educational Programs, under Contract No. W-31-109-ENG-38. Thanks are extended to Alek Pyzik of Dow Chemical USA, who provided the material for this research and arranged for the postprocessing heat treatments. Thanks to Nestor Zaluzec at Argonne National Laboratory for performing the XEDS experiments, to Craig Sperry for assistance in monitoring the experiments, and to Antonio R. de Arellano-López for his assistance in reviewing the manuscript ...
Helium-excited reactive magnetron sputtering for stress-free silicon nitride filmsHelium-excited reactive magnetron sputtering for stress-free silicon nitride films
In situ ordering of FePt thin films with face-centered-tetragonal (001) texture on Cr[sub 100-x]Ru[sub x] underlayer at low substrate temperature. Xu, Yingfan; Chen, J. S.; Wang, J. P. // Applied Physics Letters;5/6/2002, Vol. 80 Issue 18, p3325 In situ ordered FePt thin films with face-centered-tetragonal (fct)-(001) texture have been prepared by magnetron sputtering the FePt layer onto the Cr[sub 100-x]Ru[sub x] underlayer at relatively low temperature. The dependence of FePt texture on the Ru content in the Cr underlayer and the... ...
Optical properties of amorphous hydrogenated silicon nitride thin filmsOptical properties of amorphous hydrogenated silicon nitride thin films
The flagship monthly journal of SPIE, |i|Optical Engineering|/i| (OE) publishes peer-reviewed papers reporting on research and development in all areas of optics, photonics, and imaging science and engineering.
Hybrid bearingsHybrid bearings
... have rings of bearing steel and rolling elements of bearing grade silicon nitride. Silicon nitride is a ceramic material with low density and high strength, stiffness, toughness and hardness ...
Hybrid bearingsHybrid bearings
... have rings of bearing steel and rolling elements of bearing grade silicon nitride. Silicon nitride is a ceramic material with low density and high strength, stiffness, toughness and hardness ...
Microporous Silicon Nitride 8.0 micron Membrane Chips (High Porosity)Microporous Silicon Nitride 8.0 micron Membrane Chips (High Porosity)
TEMwindows.com - is the online source of innovative sample preparation solutions for the imaging and analysis of nano-scale materials.
Interphase in plasma-deposited silicon nitride optical films on polycarbonate: in situ ellipsometric characterizationInterphase in plasma-deposited silicon nitride optical films on polycarbonate: in situ ellipsometric characterization
The flagship monthly journal of SPIE, |i|Optical Engineering|/i| (OE) publishes peer-reviewed papers reporting on research and development in all areas of optics, photonics, and imaging science and engineering.
Microstructure and Porosity of Silica Xerogel Monoliths Prepared by the Fast Sol-Gel Method<...Microstructure and Porosity of Silica Xerogel Monoliths Prepared by the Fast Sol-Gel Method<...
TY - JOUR. T1 - Microstructure and Porosity of Silica Xerogel Monoliths Prepared by the Fast Sol-Gel Method. AU - Bryans, Tracy R.. AU - Brawner, Vikki L.. AU - Quitevis, Edward. PY - 2000. Y1 - 2000. M3 - Article. SP - 211. EP - 217. JO - Journal of Sol-gel Science and Technology. JF - Journal of Sol-gel Science and Technology. ER - ...
PPT - Nano-particle prepared from sol-gel method PowerPoint presentation | free to download - id: 5a2671-YTU2MPPT - Nano-particle prepared from sol-gel method PowerPoint presentation | free to download - id: 5a2671-YTU2M
Nano-particle prepared from sol-gel method 1. TiO2 Titanium tetra-iso-propoxide diethanolamine Polyethylene glycol SiO2 substrate Solution I with Polyethylene glycol – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 5a2671-YTU2M
The Effect of pH and Aging Time on the Synthesis of TiO2 - Chitosan Nanocomposites as Photocatalyst by Sol-Gel Method at Room...The Effect of pH and Aging Time on the Synthesis of TiO2 - Chitosan Nanocomposites as Photocatalyst by Sol-Gel Method at Room...
The Effect of pH and Aging Time on the Synthesis of TiO2 - Chitosan Nanocomposites as Photocatalyst by Sol-Gel Method at Room Temperature
Magnesium nitride - WikipediaMagnesium nitride - Wikipedia
Magnesium nitride was the catalyst in the first practical synthesis of borazon (cubic boron nitride).[5] Robert H. Wentorf, Jr. was trying to convert the hexagonal form of boron nitride into the cubic form by a combination of heat, pressure, and a catalyst. He had already tried all the logical catalysts (for instance, those that catalyze the synthesis of diamond), but with no success. Out of desperation and curiosity (he called it the "make the maximum number of mistakes" approach[6]), he added some magnesium wire to the hexagonal boron nitride and gave it the same pressure and heat treatment. When he examined the wire under a microscope, he found tiny dark lumps clinging to it. These lumps could scratch a polished block of boron carbide, something only diamond was known to do. From the smell of ammonia, caused by the reaction of magnesium nitride with the moisture in the air, he deduced that the magnesium metal had reacted with the boron nitride to form magnesium nitride, which was the true ...
Calcium nitride - WikipediaCalcium nitride - Wikipedia
Calcium nitride is the inorganic compound with the chemical formula Ca3N2. It exists in various forms (isomorphs), α-calcium nitride being more commonly encountered. α-Calcium nitride adopts an anti-bixbyite structure, similar to Mn2O3, except that the positions of the ions are reversed: calcium (Ca2+) take the oxide (O2−) positions and nitride ions (N3−) the manganese (Mn3+). In this structure, Ca2+ occupies tetrahedral sites, and the nitride centres occupy two different types of octahedral sites. Calcium nitride is formed along with the oxide, CaO, when calcium burns in air. It can be produced by direct reaction of the elements: 3 Ca + N2 → Ca3N2 It reacts with water or even the moisture in air to give ammonia and calcium hydroxide: Ca3N2 + 6 H2O → 3 Ca(OH)2 + 2 NH3 Like sodium oxide, calcium nitride absorbs hydrogen above 350 °C: Ca3N2 + 2 H2 → 2 CaNH + CaH2 Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN ...
Xpert search results for Statistics - an intuitive introduction : introductioXpert search results for Statistics - an intuitive introduction : introductio
h-BN particles were subjected to compressive stress in the (0001) planes (within a silicon nitride particulate-reinforced silicon carbide composite). The occurrence of BN inclusions results from the introduction of colloidal BN into the hot isostatic pressing process. They are formed from B2O3 present as a thin surface film on the BN particles in the barrier layer. B2O3 will be molten during the pressing process and will diffuse rapidly into the powder compact and react with Si3N4 to form BN. Su ...
Nierite: Nierite mineral information and data.Nierite: Nierite mineral information and data.
A very rare natural nitride, originally formed in star dust and now found in meteorites. Synthetic silicon nitride is a very important high-performance ceramic.
Západočeská univerzita - ZaměstnanciZápadočeská univerzita - Zaměstnanci
ŠUTTA, P., CALTA, P., MÜLLEROVÁ, J., NETRVALOVÁ, M., MEDLÍN, R., SAVKOVÁ, J., VAVRUŇKOVÁ, V. Transition from amorphous silicon to silicon nitride in thin films deposited by PECVD technology from silane diluted with nitrogen. In Conference Proceedings - 10th International Conference on Advanced Semiconductor Devices and Microsystems, ASDAM 2014. Bratislava: Institute of Electrical and Electronics Engineers Inc., 2014. s. 53-56. ISBN: 978-1-4799-5474-2 ...
Ceramic 6808 at Boca BearingsCeramic 6808 at Boca Bearings
Ceramic 6808 found in: 6808-BB/TP/C3 Z/S #5 SRL, 6808 SI3N4 FC LD, 6808 ZRO2 FC LD, 6808-LL/T9/C3 LD ZRO2, …silicon nitride ceramic balls,..
Patent US6011279 - Silicon carbide field controlled bipolar switch - Google PatentsPatent US6011279 - Silicon carbide field controlled bipolar switch - Google Patents
A field controlled bipolar switch having a bulk single crystal silicon carbide substrate of a first conductivity type having an upper surface and a lower surface. A first epitaxial layer of a second conductivity type silicon carbide is formed upon the upper surface of the substrate. A second epitaxial layer of the second conductivity type silicon carbide is formed on the first epitaxial layer of silicon carbide. A plurality of regions of a third conductivity type silicon carbide are formed in the second epitaxial layer to form a gate grid in the second epitaxial layer. A third epitaxial layer of the second conductivity type silicon carbide is formed on the second epitaxial layer and a fourth epitaxial layer of the second conductivity type silicon carbide is formed upon the third epitaxial layer. The fourth epitaxial layer has a higher carrier concentration than is present in the first, second and third epitaxial layers. A first ohmic contact is formed upon the fourth epitaxial layer and a second ohmic
yellow silicon carbide typesyellow silicon carbide types
4 Base glazes - Ceramic Arts Network. If silicon carbide is added to a viscous matt glaze, craters form when carbon dioxide is given off during firing. Silicon carbide also causes local reduction in the glaze, causing copper to turn red owing to the lack of oxygen available. Crater.glaze.1280 C,ne.9. Carbide Types in Knife Steels - Knife Steel Nerds. 2019/7/15· Silicon carbide has a similar hardness to those hard carbides but is not clearly harder, and in general silicon carbide is not as good at cutting steel as aluminum oxide. CBN and diamond are significantly harder than any of the carbides so they are generally better at least in terms of grinding and polishing high wear resistance steels with hard carbides.. What is silicon carbide? , Basic Knowledge , ROHM TECH …. Silicon carbide (SiC) is a comparatively new semiconductor material. We begin by briefly describing its properties and features. SiC properties and features SiC is a compound semiconductor material consisting of silicon (Si) ...
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Solution & Faq Boron Carbide Nanoparticles,Gallium Nitride powder,Molybdenum Disulfide Nanoparticle,Silicon Carbide SIC...Solution & Faq Boron Carbide Nanoparticles,Gallium Nitride powder,Molybdenum Disulfide Nanoparticle,Silicon Carbide SIC...
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Solution & Faq Boron Carbide Nanoparticles,Gallium Nitride powder,Molybdenum Disulfide Nanoparticle,Silicon Carbide SIC...Solution & Faq Boron Carbide Nanoparticles,Gallium Nitride powder,Molybdenum Disulfide Nanoparticle,Silicon Carbide SIC...
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High purity 30-99% Silicon Carbide pure tubes, View silicon carbide tubes, Xing Tai Long Product Details from Liling Xing Tai...High purity 30-99% Silicon Carbide pure tubes, View silicon carbide tubes, Xing Tai Long Product Details from Liling Xing Tai...
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Alfa Aesar™ Silicon carbide, 600 grinding compound, 2oz (57g) 57g Alfa Aesar™ Silicon carbide, 600 grinding compound, 2oz (57g)Alfa Aesar™ Silicon carbide, 600 grinding compound, 2oz (57g) 57g Alfa Aesar™ Silicon carbide, 600 grinding compound, 2oz (57g)
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Silicon carbide ceramic part, Silicon carbide ceramic part direct from Liling Xing Tai Long Special Ceramic Co., Ltd. in China ...Silicon carbide ceramic part, Silicon carbide ceramic part direct from Liling Xing Tai Long Special Ceramic Co., Ltd. in China ...
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Green Silicon Carbide Powder Manufacturers, Green Silicon Carbide Powder Manufacturers Suppliers and Manufacturers at Alibaba...Green Silicon Carbide Powder Manufacturers, Green Silicon Carbide Powder Manufacturers Suppliers and Manufacturers at Alibaba...
Alibaba.com offers 2,913 green silicon carbide powder manufacturers products. About 50% of these are abrasives, 28% are other metals & metal products, and 8% are refractory. A wide variety of green silicon carbide powder manufacturers options are available to you, such as medicine grade, industrial grade, and agriculture grade.
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S W 1 79067 made of pure silicon carbide (BU6V) 25 46 56 68 24 44 23 105 83 12,5 63 2 79068 made of pure silicon carbide (BU6V) 28 49 57 67 23 44 23 110 86 12,5 64 3 79069 made of pure silicon carbide (BU6V) 30 51 61 68 24 44 23 115 85 12,5 68 4 32 ...
Fabrication of silicon carbide sintered supports and silicon carbide membranes :: University of Southern California...Fabrication of silicon carbide sintered supports and silicon carbide membranes :: University of Southern California...
Efficient separation of hydrogen (H₂) under high temperatures and pressures is important to the development of the clean-energy industry, and has been among the key drivers for research on inorganic membranes for the last two decades. Although substantial efforts have been devoted to date to the preparation of nanoporous membranes for H₂ separation, the fabrication of high-temperature and steam-stable inorganic membranes with high hydrogen fluxes and large separation factors still remains a key challenge. Among all the potential candidates, silicon carbide (SiC) membranes show potential advantages for use in hydrogen separation processes under harsh and corrosive conditions such as, for example, the steam reforming and the water gas shift reactions commonly employed in H₂ production; this is because SiC is a material that has high corrosion resistance, high thermal conductivity, high thermal shock resistance, and excellent chemical and mechanical stability, making it thus a promising ...
Use of a silicon carbide multi-well plate in conjunction with microwave heating for rapid ligand synthesis, formation of...Use of a silicon carbide multi-well plate in conjunction with microwave heating for rapid ligand synthesis, formation of...
The preparation of a library of bis-imidazolium salts and corresponding palladium complexes is reported. These complexes are screened as catalysts in the Suzuki reaction between 4-bromoanisole and phenylboronic acid. Each step is performed in parallel using a 24-position silicon carbide plate and microwave heating. The plate allows for use of standard glass vials as reaction vessels. The ease and speed of operation show the potential for microwave heating in conjunction with the silicon carbide plate as a tool for catalyst screening. (C) 2009 Elsevier Ltd. All rights reserved.
Global and United States Black Silicon Carbide (SIC) Market Insights, Forecast to 2026 - Market Study ReportGlobal and United States Black Silicon Carbide (SIC) Market Insights, Forecast to 2026 - Market Study Report
Black Silicon Carbide (SIC) market is segmented by region (country), players, by Type, and by Application. Players, stakeholders, and other participants in the global Black Silicon Carbide (SIC) market will be able to gain the upper hand as they use ...
86844 TITANIUM NITRIDE STEERING POST 3x23mm (2pcs)86844 TITANIUM NITRIDE STEERING POST 3x23mm (2pcs)
Prep your Blitz or Firestorm for the roughest conditions with a full set of Titanium Nitride Suspension and Shock Shafts! Titanium nitride coatings help prevent corrosion and substantially improve the smoothness of the shafts, helping you reduce your maintenance times as well as the lifetime of the shafts! A complete set of suspension and shock shafts are available for the Firestorm, steering posts are also available!. #86842 TITANIUM NITRIDE COATED SHOCK SHAFT 3x50mm #86843 TITANIUM NITRIDE COATED SHOCK SHAFT 3x58mm #86844 TITANIUM NITRIDE STEERING POST 3x23mm #86845 TITANIUM NITRIDE SUSPENSION SHAFT 3x32mm #86846 TITANIUM NITRIDE SUSPENSION SHAFT 3x27mm #86847 TITANIUM NITRIDE SUSPENSION SHAFT 3x54 mm #86848 TITANIUM NITRIDE SUSPENSION SHAFT 3x33mm. ...
86844 TITANIUM NITRIDE STEERING POST 3x23mm (2pcs)86844 TITANIUM NITRIDE STEERING POST 3x23mm (2pcs)
Prep your Blitz or Firestorm for the roughest conditions with a full set of Titanium Nitride Suspension and Shock Shafts! Titanium nitride coatings help prevent corrosion and substantially improve the smoothness of the shafts, helping you reduce your maintenance times as well as the lifetime of the shafts! A complete set of suspension and shock shafts are available for the Firestorm, steering posts are also available!. #86842 TITANIUM NITRIDE COATED SHOCK SHAFT 3x50mm #86843 TITANIUM NITRIDE COATED SHOCK SHAFT 3x58mm #86844 TITANIUM NITRIDE STEERING POST 3x23mm #86845 TITANIUM NITRIDE SUSPENSION SHAFT 3x32mm #86846 TITANIUM NITRIDE SUSPENSION SHAFT 3x27mm #86847 TITANIUM NITRIDE SUSPENSION SHAFT 3x54 mm #86848 TITANIUM NITRIDE SUSPENSION SHAFT 3x33mm. ...
Reversible hydrogen annealing of metal‐oxide‐silicon carbide devices at high temperaturesReversible hydrogen annealing of metal‐oxide‐silicon carbide devices at high temperatures
We report on a reversible hydrogen annealing effect observed in platinum-silicon dioxide-silicon carbide structures at temperatures above about 650 degrees C. It appears as a decrease of the inversion capacitance in the presence of hydrogen. This phenomenon is shown to depend on hydrogen atoms, created on the catalytic metal, that pass through the oxide and interact with charge generation sites at the oxide-silicon carbide interface. The consequence of the observation for chemical sensors based on silicon carbide is discussed. The results are phenomenological, since no details of the annealing chemistry could be developed from the present experiments. We find, however, that the annealing process and its reversal have activation energies of about 0.9 eV and 2.9 eV/site,respectively.. ...
Microelectronic technology: IEDs spark into life - Verdict Medical DevicesMicroelectronic technology: IEDs spark into life - Verdict Medical Devices
the task and so the number of materials requiring evaluation seems endless. Common materials such as platinum stimulus electrodes are likely to persist in these markets and their in vivo performance is well understood. The evolving needs for performance and miniaturisation are pushing for planar sensors integrated on the semiconductor die as these can be directly interfaced with tissue. The default materials are then defined by those used in semiconductor manufacturing, and invariably include silicon nitride as the IC surface passivation. Silicon nitride has been evaluated comprehensively in vitro and in vivo due to its widespread use and appears to be suitably biocompatible.. To avoid introducing further materials into the picture, some in vitro applications (DNA Electronics, Ion Torrent) attempt to sense through this passivation layer, but this is unlikely to be optimal for implants, as limitations include low sensitivity and potential reliability failure. Failures caused by electrical drifts ...
Difference between revisions of Silicon carbide - Sciencemadness WikiDifference between revisions of "Silicon carbide" - Sciencemadness Wiki
Because of the rarity of natural moissanite, most silicon carbide is synthetic. It is used as an abrasive, and more recently as a semiconductor and diamond simulant of gem quality. However the preparation of SiC is too difficult for most amateur scientists.The simplest manufacturing process is to combine silica sand and carbon in an Acheson graphite electric resistance furnace at a high temperature, between 1,600 °C (2,910 °F) and 2,500 °C (4,530 °F). Fine SiO2 particles in plant material (e.g. rice husks) can be converted to SiC by heating in the excess carbon from the organic material.[15] The silica fume, which is a byproduct of producing silicon metal and ferrosilicon alloys, also can be converted to SiC by heating with graphite at 1,500 °C (2,730 °F). ...
Study of hafnium (IV) oxide nanoparticles synthesized by polymerized complex and polymer precursor derived sol-gel methods -...Study of hafnium (IV) oxide nanoparticles synthesized by polymerized complex and polymer precursor derived sol-gel methods -...
Fingerprint Dive into the research topics of Study of hafnium (IV) oxide nanoparticles synthesized by polymerized complex and polymer precursor derived sol-gel methods. Together they form a unique fingerprint. ...
British Library EThOS: Complementary JFET logic in silicon carbideBritish Library EThOS: Complementary JFET logic in silicon carbide
In the last decade or so, many prototype SiC devices and logic circuits have been demonstrated which have surpassed the performance of Si for the ability to function in extreme environments. The advance of silicon carbide technology has now reached a stage where commercialisation of high performance and energy efficient miniaturised devices and circuits is possible. These devices and circuits should be able to operate on the limited power resources available in harsh and hot hostile environments. These improvements require refining, experimenting and perhaps re-designing devices which can rightly claim their share in the current silicon dominant market. Consequently, there is a need for accurate simulation models for device engineers to understand device and circuit behaviour, examine performance trade-offs and verify the manufacturability of the design. This work includes the first comprehensive study, to the authors knowledge, on the development and validation of 4H-SiC model parameters for ...
silicon carbide abrasive papers in greecesilicon carbide abrasive papers in greece
Sandpaper and glasspaper are names used for a type of coated abrasive that consists of sheets of paper or cloth with abrasive material glued to one face. Despite the use of the names neither sand nor glass are now used in the manufacture of these products as they have been replaced by other abrasives such as aluminium oxide or silicon carbide ...
Silicon Carbide GritSilicon Carbide Grit
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Ceramic Matrix Composites (CMC) Market Analysis By Product (Oxide, Silicon Carbide (SiC), Carbon), By Application (Aerospace,...Ceramic Matrix Composites (CMC) Market Analysis By Product (Oxide, Silicon Carbide (SiC), Carbon), By Application (Aerospace,...
/PRNewswire/ -- The global ceramic matrix composites (CMC) market is expected to reach USD 6.0 billion by 2024, according to a new report by Grand View...
Rheological behaviour of silicon carbide suspension in relation to particle size distribution - IR@CGCRIRheological behaviour of silicon carbide suspension in relation to particle size distribution - [email protected]
Rheological behaviour of an aqueous suspension of silicon carbide in presence of a dispersing agent has been studied to analyze the important factors related to casting. Shear stress τ and rate of shear γ were found to follow power law with two constants n and k both of which were dependent on particle size distribution.. ...
Nanoindentation of silicon carbide and sulfur-induced embrittlement of nickel :: University of Southern California...Nanoindentation of silicon carbide and sulfur-induced embrittlement of nickel :: University of Southern California...
This dissertation focuses on the mechanical response, plastic activities, and failure of bulk ceramic and nanocrystalline metal at the atomistic scale. Molecular dynamics simulations have been performed for nanoindentation on the crystalline cubic silicon carbide (3C-SiC) and sulfur-induced embrittlement at nickel grain boundaries.; Multimillion-atom molecular dynamics simulations of nanoindentation on 3C-SiC surfaces corresponding to three different crystallographic directions, (110), (001), and (111), have been performed using pyramidal-shaped Vickers indenter with 90˚ edge angle. Load-displacement (P-h) curves show major and minor pop-in events during loading. Our analysis shows that the first minor discontinuity in the P-h curve of (110) indentation is related to nucleation of dislocations, whereas the subsequent major load-drops are related to the dissipation of accumulated energy by expansion of dislocation loops and changes of slip planes. Detailed quantitative analysis on the stress ...
Interferometric measurements of silicon carbide and aluminum mirrors at liquid helium temperature | (1997) | Robb | ...Interferometric measurements of silicon carbide and aluminum mirrors at liquid helium temperature | (1997) | Robb | ...
This paper extends the previously reported results of cryogenic optical testing (SPIE Volume 2543, 1995) by including the results of further reduction of the test data for the 170-mm-diameter silicon carbide mirror and the 178-mm- diameter aluminum mirror. Both mirrors were manufactured by the Vavilov State Optical Institute, St. Petersburg, Russia, for infrared applications and were loaned to LMMS for these tests. Optical tests were performed in the Lockheed Martin cryogenic optical test facility at liquid helium temperatures, using a Zygo Mark II interferometer. The initial surface figures were 0.18 waves and 0.08 waves for the aluminum and the SiC mirrors, respectively, with figure error being given as rms wavefront error at 0.6328-micron wavelength at room temperature. It was found that the maximum change in shape after cooling was between 0.007 and 0.036 waves for the SiC mirror and between 0.017 and 0.062 waves for the aluminum mirror ...
Microchip Releases Newest Generation of AEC-Q101 Qualified 700 and 1200V Silicon Carbide (SiC) Schottky Barrier Diode (SBD) for...Microchip Releases Newest Generation of AEC-Q101 Qualified 700 and 1200V Silicon Carbide (SiC) Schottky Barrier Diode (SBD) for...
Automotive Electronics Council (AEC)-Q101-qualified devices targeted at helping electric vehicles achieve the highest levels of reliability and ruggednessCHANDLER, Ariz., Oct. 28, 2020 (GLOBE NEWSWIRE) -- As vehicle electrification continues rapid growth worldwide, innovative power technologies such as Silicon Carbide (SiC) are required for high-voltage automotive systems ranging from motors to on-board charging and DC/DC converters. Microchip Technology Inc. (Nasdaq: MCHP) today announced its newly-qualified 700 and 1200V SiC Schottky Barrier Diode (SBD) power devices, providing Electric Vehicle (EV) system designers with solutions that meet stringent automotive quality standards across a wide range of voltage, current and package options.For EV power designers who need to increase system efficiency while maintaining high quality, Microchips AEC-Q101-qualified devices maximize system reliability and ruggedness and enable stable and lasting application life. The devices superior avalanche performance
Development of a Commercial Process for the Production of Silicon Carbide Fibrils - Draft Phase II Final Report - Digital...Development of a Commercial Process for the Production of Silicon Carbide Fibrils - Draft Phase II Final Report - Digital...
The current work continues a project completed in 1999 by ReMaxCo Technologies in which a novel, microwave based, VLS Silicon Carbide Fibrils concept was verified. This project continues the process development of a pilot scale commercial reactor. Success will lead to sufficient quantities of fibrils to expand work by ORNL and others on heat exchanger tube development. A semi-continuous, microwave heated, vacuum reactor was designed, fabricated and tested in these experiments. Cylindrical aluminum oxide reaction boats are coated, on the inner surface, with a catalyst and placed into the reactor under a light vacuum. A series of reaction boats are then moved, one at a time, through the reactor. Each boat is first preheated with resistance heaters to 850 C to 900 C. Each reaction boat is then moved, in turn, to the microwave heated section. The catalyst is heated to the required temperature of 1200 C to 1300 C while a mixture of MTS (methyl trichlorosilane) and hydrogen are introduced into the annulus of
occurrence of moissanite (silicon carbide) in sediments | Journal of Sedimentary Research | GeoScienceWorldoccurrence of moissanite (silicon carbide) in sediments | Journal of Sedimentary Research | GeoScienceWorld
Robert D. Ohrenschall, Charles Milton; The occurrence of moissanite (silicon carbide) in sediments. Journal of Sedimentary Research ; 1 (2): 96-99. doi: https://doi.org/10.1306/D4268DE2-2B26-11D7-8648000102C1865D. Download citation file:. ...
Web market - Buy 2493 with Handle Nanometer Silicon Carbide Spong Mop Magic Spong Mop Kitchen Decontamination Cleaning Brush a...Web market - Buy '2493 with Handle Nanometer Silicon Carbide Spong Mop Magic Spong Mop Kitchen Decontamination Cleaning Brush a...
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Patente US20090087585 - Deposition processes for titanium nitride barrier and aluminum - Google PatentesPatente US20090087585 - Deposition processes for titanium nitride barrier and aluminum - Google Patentes
Embodiments described herein provide a method for forming two titanium nitride materials by different PVD processes, such that a metallic titanium nitride layer is initially formed by a PVD process in a metallic mode and a titanium nitride retarding layer is formed over a portion of the metallic titanium nitride layer by a PVD process in a poison mode. Subsequently, a first aluminum layer, such as an aluminum seed layer, may be selectively deposited on exposed portions of the metallic titanium nitride layer by a CVD process. Thereafter, a second aluminum layer, such as an aluminum bulk layer, may be deposited on exposed portions of the first aluminum layer and the titanium nitride retarding layer during an aluminum PVD process.
Patent US4145803 - Lithographic offset alignment techniques for RAM fabrication - Google PatentsPatent US4145803 - Lithographic offset alignment techniques for RAM fabrication - Google Patents
Lithographic offset alignment techniques for MOS dynamic RAM memory cell fabrication to enable increased packing density while maintaining the minimum patterned geometry. Technique of cell fabrication involves initial oxidation of P-type silicon, for example, followed by silicon nitride deposition. Thereafter, moats are etched using the composite silicon dioxide-silicon nitride layers, followed by boron deposition or ion implantation in regions of the silicon substrate exposed by the etching treatment. The moats are then filled by oxidation to form a large field deposit of silicon dioxide extending above the level of the oxide layer in the regions where the moats were formed. The remaining composite silicon dioxide-silicon nitride layers are then removed, followed by gate oxidation. A P-type ion implant is provided beneath the thin oxide region between the regions to be overlaid by a polysilicon electrode and the thick field oxide of the succeeding cell. Thereafter, polysilicon is deposited and
Penilaian Menengah RendahPenilaian Menengah Rendah
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QuadrosilanQuadrosilan
TetraazidomethaneTetraazidomethane
Royal Society Bakerian MedalRoyal Society Bakerian Medal
OrganosilanolsOrganosilanols
OrganosiliconOrganosilicon
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PhenylsilatranePhenylsilatrane
HexamethyldisiloxaneHexamethyldisiloxane
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Peterson olefinationPeterson olefination
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Silica (disambiguation)Silica (disambiguation)
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TrifluoromethylationTrifluoromethylation
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Combustibility and flammabilityCombustibility and flammability
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Aluminium nitrideAluminium nitride
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Hidrogen bahasa Indonesia, ensiklopedia bebasHidrogen bahasa Indonesia, ensiklopedia bebas
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Functional Molecular Silicon Compounds I | SpringerLinkFunctional Molecular Silicon Compounds I | SpringerLink
Tiny compound semiconductor transistor could challenge silicons dominanceTiny compound semiconductor transistor could challenge silicon's dominance
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silicon grease vs. arctic silver thermal compound - diyAudiosilicon grease vs. arctic silver thermal compound - diyAudio
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Lewis Acidity of Bis(perfluorocatecholato)silane: Aldehyde Hydrosilylation Catalyzed by a Neutral Silicon Compound (Journal...Lewis Acidity of Bis(perfluorocatecholato)silane: Aldehyde Hydrosilylation Catalyzed by a Neutral Silicon Compound (Journal...
Polymeric Forms of Al13and Silicon Compounds as Unconventional Binding Agents for some Toxic Metals in Soils : MineralogiaPolymeric Forms of Al13and Silicon Compounds as Unconventional Binding Agents for some Toxic Metals in Soils : Mineralogia
Theoretical Studies of Some Fluoro Compounds with Silicon, Phosphorus and Sulphur and Establishment of Negative...Theoretical Studies of Some Fluoro Compounds with Silicon, Phosphorus and Sulphur and Establishment of Negative...
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Life | Free Full-Text | On the Potential of Silicon as a Building Block for Life | HTMLLife | Free Full-Text | On the Potential of Silicon as a Building Block for Life | HTML
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E-Books India | Scoop.itE-Books India | Scoop.it
SYNTHESIS OF SILICON, TIN AND THALLIUM COMPOUNDS WITH DIMETHYLAMINOETHYL-SUBSTITUTED CYCLOPENTADIENYL LIGANDSSYNTHESIS OF SILICON, TIN AND THALLIUM COMPOUNDS WITH DIMETHYLAMINOETHYL-SUBSTITUTED CYCLOPENTADIENYL LIGANDS
AnatomyOrganismsDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPsychiatry and PsychologyPhenomena and ProcessesDisciplines and OccupationsAnthropology, Education, Sociology and Social PhenomenaTechnology, Industry, AgricultureHealth Care
SiliconOrganosilicon CompoundsSilicon CompoundsCarbon Compounds, InorganicSilicon DioxideNanowiresSemiconductorsNanotechnologyPorosityTransistors, ElectronicGermaniumSilicic AcidElectronicsSilanesSurface PropertiesSolar EnergyBiosensing TechniquesNanostructuresMolecular StructureEquipment DesignMicro-Electrical-Mechanical SystemsMicrotechnologySiliconesMicroscopy, Electron, ScanningSulfur CompoundsHafniumDiatomsPoaMiniaturizationVolatile Organic CompoundsEquipment Failure AnalysisNanoporesLab-On-A-Chip DevicesOptical DevicesComb and WattlesIllusionsPatents as TopicHydrazinesPhosphoric AcidsHydrocarbons, AcyclicRadiochemistryHydrazonesIodine IsotopesRubberSilicone ElastomersSilicone OilsLegislation, PharmacyPalladiumAlkenesLewis BasesSolventsStereoisomerism
SilicaChemistryPOLYMERSPhosphorusOrgano-silicon compoundsReactionsSulfurBondsSilicone rubberPotting CompoundCarbonyl compoundsReagentsChemicalPolymericCyclic compoundAlkaliOxidesOlefinsSemiconductorReactionSolventsMoleculesChlorineAnalogsBoronQuartzRubberAluminumSodiumSilicateApplicationsMetallicProducts1981ChemicallyEnzymeMethylThermalComprisesCarbon-basedDERIVATIVESCoatingsCalciumSubstances
Silica23
Chemistry19
POLYMERS6
Phosphorus1
Organo-silicon compounds1
Reactions9
Sulfur3
Bonds14
  • Researchers in the laboratory of Caltech's Frances Arnold discuss how they persuaded nature to make silicon-carbon bonds. (eurekalert.org)
  • Following a few tweaks, heme proteins can efficiently catalyze the formation of carbon-silicon bonds, which are not found in any known biological molecules, nor capable of being created through any existing biological processes. (eurekalert.org)
  • However, existing methods for synthesizing carbon-silicon bonds have limitations, requiring expensive trace metals or sometimes requiring low temperatures to function optimally, for example. (eurekalert.org)
  • A new study is the first to show that living organisms can be persuaded to make silicon-carbon bonds-something only chemists had done before. (phys.org)
  • Currently, these products are made synthetically, since the silicon-carbon bonds are not found in nature. (phys.org)
  • This news video explains how Caltech researchers persuaded nature to make silicon-carbon bonds for the first time. (phys.org)
  • No living organism is known to put silicon-carbon bonds together, even though silicon is so abundant, all around us, in rocks and all over the beach," says Jennifer Kan, a postdoctoral scholar in Arnold's lab and lead author of the new study. (phys.org)
  • The researchers' first step was to find a suitable candidate, an enzyme showing potential for making the silicon-carbon bonds. (phys.org)
  • That protein, called cytochrome c, normally shuttles electrons to other proteins, but the researchers found that it also happens to act like an enzyme to create silicon-carbon bonds at low levels. (phys.org)
  • Compounds which contain a piperidine ring, i.e., a six-membered hetero ring consisting of one ring nitrogen and five ring carbons with no double bonds between ring members. (uspto.gov)
  • First page The Reactivity with Alkali of Chlorine-Carbon Bonds Alpha, Beta and Gamma to Silicon Leo H. Sommer, Edwin Dorfman, Gershon M. Goldberg, Frank C. Whitmore J. Am. Chem. (wikipedia.org)
  • We wanted to know, and discovered that enzymes that forge carbon-silicon bonds could be evolved in a test tube . (newscientist.com)
  • Scientists at Caltech have "bred" a bacterial protein with the ability to make silicon-carbon bonds, with applications in several industries - something only chemists could do before. (kurzweilai.net)
  • The "killer app" for Si would presumably be very rare, although I wonder if someone has taken advantage of a displaceable group on silicon to form strong Si-O bonds with an enzyme to shut it down. (sciencemag.org)
Silicone rubber5
Potting Compound2
Carbonyl compounds1
Reagents2
Chemical8
Polymeric3
Cyclic compound1
  • The cyclic compound which best mimics the action of the natural pheromones presumably has a conformation similar to that which the pheromone adopts when bound to the receptor site. (lsu.edu)
Alkali1
  • Addition of alkali to the β-substituted compound on the other hand leads to an elimination reaction with liberation of ethylene. (wikipedia.org)
Oxides1
Olefins2
Semiconductor4
  • Although many of the techniques applied by the team are already used in silicon fabrication, they have only rarely been used to make compound semiconductor transistors. (cellular-news.com)
  • But when you are talking about integrating billions of tiny transistors onto a chip, then we need to completely reformulate the fabrication technology of compound semiconductor transistors to look much more like that of silicon transistors,' del Alamo says. (cellular-news.com)
  • The produced polysilicon is used as wafers in large amounts by the photovoltaic industry for conventional solar cells made of crystalline silicon and also by the semiconductor industry. (wikipedia.org)
  • The creation of an impurity into silicon as a semiconductor boosts it into comprehensive conduction. (chitoku.net)
Reaction2
  • Monochlorides of esters of phospheric acid also react with hexamethyldisilazane under heterocyclic fission of the Si-N-compound, while the reaction of trimethyl-N-methylamino-silane results in the substitution of the H-atom attached to the N-atom without any fission of the Si-N-compound. (dtic.mil)
  • The alpha-silicon effect is the destabilizing effect of a silicon atom (relative to a carbon atom) next to a reaction center with a partial positive charge. (wikipedia.org)
Solvents3
  • Removing silicon species from hydrocarbon solvents such as cyclohexane. (google.es)
  • The present invention relates to a process for removing silicon compounds from hydrocarbon solvents. (google.es)
  • More particularly, the invention relates to a process for removing residual silicon species from polymerization solvents. (google.es)
Molecules8
Chlorine1
Analogs1
Boron3
Quartz1
  • Quartz forms the pure shape of silicon oxide and is also utilised in cosmetic sunglasses who are used by engineering. (chitoku.net)
Rubber9
  • The silicon rubber coated glass fiber cloth is made of high-temperature resistant, corrosion resistant and high strength glass fiber cloth which is rolled or soaked with organic silicon rubber. (ecvery.com)
  • The silicon rubber coated glass fiber cloth includes two types of single side and double sides. (ecvery.com)
  • Compared with the common coated fabrics, the silicon rubber coated glass fiber cloth is characterized by unique high-temperature resistance, permeability resistance, excellent weather aging resistance, softness and toughness. (ecvery.com)
  • The silicon rubber coated glass fiber cloth is a new composite material-made product with high performance and multiple functions. (ecvery.com)
  • The silicon rubber cloth cannot be used in places where SO2 containing flue gas and vapor exists. (ecvery.com)
  • 3. Corrosion resistance: the silicon rubber coated glass fiber cloth can be used as internal-external corrosion resistant coatings of a pipe, and can achieve quite good corrosion resistance and high strength, so that the silicon rubber coated glass fiber cloth is an ideal corrosion resistant material. (ecvery.com)
  • 4. Other fields: the silicon rubber coated glass fiber film structural material can be applied in fields such as construction sealing materials, a high-temperature corrosion resistant conveying belt, packaging materials, etc. (ecvery.com)
  • Bluestar Silicones and Basoğlu Kablo join forces to create a rubber compounding center in Turkey to serve customers with technical products adapted to local requirements. (elkem.com)
  • the blocked mercaptosilanes can be used in rubber compounds. (freepatentsonline.com)
Aluminum2
Sodium2
  • A method of and system for removing silicon from a high temperature liquid sodium coolant system for a nuclear reactor. (osti.gov)
  • The sodium is cooled to a temperature below the silicon saturation temperature and retained at such reduced temperature while inducing high turbulence into the sodium flow for promoting precipitation of silicon compounds and ultimate separation of silicon compound particles from the liquid sodium. (osti.gov)
Silicate2
Applications8
  • The functionalized silicon compounds may be covalently attached to surfaces to form functionalized surfaces which may be used in a wide range of different applications. (google.co.uk)
  • Epic Resins offers an extensive range of potting compounds to accommodate many applications. (epicresins.com)
  • While silicone potting compounds have some advantages, polyurethanes tend to work better for many applications . (epicresins.com)
  • Epic S7325 is a two-component polyurethane compound specifically designed for potting/casting applications that require low hardness, convenient volumetric mix ratio and short working times. (epicresins.com)
  • EPIC S7325 is useful for applications requiring a re-enterable compound. (epicresins.com)
  • This strategic move comes after Bluestar Silicones announced the investment of 15M€ in new state of the art HCR technology to bolster its presence and market share in highly demanding HCR applications. (elkem.com)
  • Since the discovery of hydroformylation by O. Roelen in 1938, catalytic applications have paved the way of organometallic compounds in industry. (wiley.com)
  • The absolute concentration associated with the term 'virtual removal' is not defined in the government documents, but if it is set at a low level, resulting legislation could have the effect of removing silicones from nearly all applications and markets in Canada--medical devices excepted. (thefreelibrary.com)
Metallic1
Products6
  • The partnership will enhance GCL-Poly's overall competitiveness by diversifying the silicon products, better serving its main business, and meeting market demand,' said Zhu Gongshan, Chairman of GCL-Poly. (coatingsworld.com)
  • Common products contain complex mixtures of Endocrine-disrupting compounds and asthma-related compounds. (ctdbase.org)
  • This invention relates to novel room temperature curable compositions comprising a hydroxyl containing organic thermoplastic polymer and an aminoorganosilicon acylamino compound, as well as to the crosslinked products derived from said compositions. (google.com)
  • It has now been discovered that room temperature curable polymer compositions can also be easily prepared at room temperature by simply mixing a hydroxyl containing organic thermoplastic polymer with certain hydrolyzable aminoorganosilicon acylamino compounds without also resulting in undesirable by-products. (google.com)
  • Diversified application of Silicon-centred systems in businesses, consumer electronics and personal computers, products in the home, textiles, construction, and cars will make it one of many superb crucial elements inside globe now. (chitoku.net)
  • These 3 silicones are used in their own right, particularly in personal care products, either individually (previously [D.sub.was most commonly used, but over the last decade has been supplanted by [D.sub. or as mixtures (cyclomethicones). (thefreelibrary.com)
19811
  • She continued her research with several additional studies including a publication in 1981 titled " Silicon: a requirement in bone formation independent of vitamin D 1 " [ 15 ]. (hindawi.com)
Chemically3
Enzyme1
Methyl4
  • Mechanistic studies of hydrosilylation using an optically active silane substrate, R-(+)-methyl-(1-naphthyl)phenylsilane, proceeded with predominant stereochemical retention at silicon, consistent with a carbonyl activation pathway. (osti.gov)
  • The also preferred are those silicon compounds in which a is 0, c is 3, R12 is branched alkyl or cycloalkyl, containing optionally a heteroatom, and R13 is methyl, for example, cyclohexyltrimethoxysilane and the like. (allindianpatents.com)
  • Compound (21) was also obtained using the same method from 2-(5-acetoxypentyl)-3-methyl-cyclohexan-one (63). (lsu.edu)
  • The also preferred are those silicon compounds in which a is 0, c is 3, R 12 is branched alkyl or cycloalkyl, containing optionally heteroatom, and R 13 is methyl, for example, cyclohexyltrimethoxysilane and the like. (justia.com)
Thermal1
Comprises1
  • The process comprises contacting the hydrocarbon solvent with sulfuric acid in an amount sufficient to phase separate the silicon species and removing at least 20% by weight of the residual silicon species from the hydrocarbon solvent. (google.es)
Carbon-based1
  • Thus, it would be difficult for a silicon-based life-form to achieve all of the wonderful regulating and recognition functions that carbon-based enzymes perform for us. (scientificamerican.com)
DERIVATIVES1
  • They give an excellent overview of current research into many areas of tin and silicon, encompassing both inorganic and organometallic derivatives and fundamental and applied studies. (docme.ru)
Coatings1
  • Pyrolysis of SiBr4 followed by treatment with ammonia yields silicon nitride (Si3N4) coatings, a hard compound used for ceramics, sealants, and the production of many cutting tools. (wikipedia.org)
Calcium1
  • Carlisle concluded that silicon is important as an initiator of mineralization because silicon is highly concentrated in immature osteoid but declines as calcium content rises in mature bone. (hindawi.com)
Substances1
Functional Molecular Silicon Compounds II | SpringerLink
Functional Molecular Silicon Compounds II | SpringerLink (link.springer.com)
Functional Molecular Silicon Compounds I | SpringerLink
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NIOSHTIC-2 Publications Search - 20040483 - A novel device for measuring respirable dustiness using low-mass powder samples.
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Table of Contents - August 22, 2008, 321 (5892) | Science
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TBD*****
TBD***** (uspto.gov)
Zeitschrift für Naturforschung B
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Applied Homogeneous Catalysis with Organometallic Compounds: A Comprehensive Handbook in Three Volumes, 2nd, Completely Revised...
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Silicone Thermal Heatsink Compound Cooling Paste Grease Syringe for PC Processor for sale online | eBay
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Advanced Silicon Materials for Photovoltaic Applications | Electronic Materials | General & Introductory Materials Science |...
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