Metals alloy phase separation. Medical search. Frequent questions

A.I. Bazlov et al, Thermo-mechanical processing of a Zr62.5Cu22.5Fe5Al10 glassy alloy as a way to obtain tensile ductility, Journal of Alloys and Compounds (2020). (phys.org)
Journal of Alloys and Compounds , 806 , 500-509. (uni-hannover.de)

Considering that compositional modifications in 2D systems lead to significant changes in properties due to the high anisotropy inherent to their crystallographic structure, this work focuses on alloying of TMH compounds to explore the potentials for tuning their properties. (asu.edu)
Phase separation was found in the Fe(1-x)Cr(x)Cl(3) ternary alloy indicating that crystallographic structure compatibility plays an essential role in determining the miscibility of two parent compounds. (asu.edu)
Alloying across two similar (TMH) compounds appears to yield predictable results in properties as in the case of Co(1-x)Ni(x)Cl(2), while more exotic transitions, as in the case of Mo(1-x)Cr(x)Cl(3), can emerge by alloying dissimilar compounds. (asu.edu)

Towards the chemically specific structure of amorphous materials: anomalous X-ray scattering from a molybdenum-germanium alloy 19th International Conference on Amorphous and Microcrystalline Semiconductors (ICAMS 19) Ishii, H., Brennan, S., Bienenstock, A. ELSEVIER SCIENCE BV. (stanford.edu)
CHARACTERIZATION OF PHASE-SEPARATION IN AMORPHOUS FILMS USING MODERN SMALL-ANGLE SCATTERING METHODS 6th International Conference on the Structure of Non-Crystalline Materials (NCM 6) Regan, M. J., Bienenstock, A. ELSEVIER SCIENCE BV. (stanford.edu)
Some previous high-pressure experiments used diamond-anvil cells to form amorphous phases from other crystalline materials, with much smaller sample sizes of a few thousandths of a millimeter. (scienceblog.com)
Metallic glasses ( amorphous metals ) are materials which, unlike crystalline forms, don't have a long range atomic order. (phys.org)
Amorphous metals also have other useful properties, due to which they are in demand in instrument making, mechanical engineering, medicine and magneto-electrical engineering. (phys.org)
The method was tested on an amorphous Zr-Cu-Fe-Al system alloy. (phys.org)
According to the scientists, it is the way the original amorphous matrix of the alloy decomposes that affects the resulting material's characteristics. (phys.org)
For bulk samples, we've achieved an increase in tensile plasticity of up to 1.5% at room temperature by dividing a homogeneous amorphous phase into two. (phys.org)
For ribbon samples, a 25% increase in hardness has been achieved, which is provided with the separation of secondary-amorphous-phase glassy nanoparticles of about 7 nm with retention of plasticity on bending and compression. (phys.org)
but they believe that the proposed technology can be applied to other amorphous alloys , in particular, titanium. (phys.org)
As such, researchers have attempted to produce bulk amorphous Al-based alloys and their composites with powder metallurgy methods by consolidating their glassy ribbons or powders31-33. (cyberleninka.org)

In June 2023, however, a European patent EP3670684B1 on High wear resistant high entropy alloy and preparation there of was granted to Casa Maristas Azterlan, a private metallurgy research centre based in the Basque region of Spain. (iom3.org)
EP3670684B1 claims protection for an as-cast high-entropy alloy with a chemical composition consisting of 5.0-20wt. (iom3.org)
The patent therefore also claims protection for a heat-treated high-entropy alloy with the above-defined composition and achieving a hardness value equal to or greater than 730HV. (iom3.org)
The most commonly investigated high entropy alloy, AlCoCrCuFeNi, has been chosen for optimization of its microstructural and mechanical properties by means of compositional changes and heat treatments. (mdpi.com)

Such contemporary multi-component alloys have been found to exhibit different thermodynamic behaviours and physical properties than might be expected by applying conventional alloying rules developed from the study of binary or ternary. (iom3.org)
Furthermore, complete compositional tuning of the ternary ditelluride nanobelts is achieved with suppressed phase separation, applicable to the creation of unprecedented low‐dimensional materials/devices. (asemlab.org)
In this thesis, the ternary cation alloys of Co(1-x)Ni(x)Cl(2) and Mo(1-x)Cr(x)Cl(3) were synthesized via chemical vapor transport at a various stoichiometry. (asu.edu)
It was found that completely miscible ternary alloys of Co(1-x)Ni(x)Cl(2) show an increasing Néel temperature with nickel concentration. (asu.edu)
Numerical simulations of phase separation in Fe-Cr-Ni ternary alloys and Fe-Cr-Mo-Ni quaternary alloys similar to ferrite phases in duplex stainless steels were performed with using of the Cahn-Hilliard equations. (elsevierpure.com)
We obtained that small addition of Ni retard phase separation of Cr in Fe-Cr-Ni ternary alloys. (elsevierpure.com)
The simulation results on behavior of Mo and Ni in Fe-Cr-Mo-Ni ternary alloys were quite similar to Mo in Fe-Cr- Mo and Ni in Fe-Cr-Ni ternary alloys. (elsevierpure.com)
Yang, LL & Saito, Y 2012, ' Computer simulation of spinodal decomposition in Fe-Cr-Ni ternary alloys and Fe-Cr-Mo-Ni quaternary alloys ', ISIJ International , vol. 52, no. 4, pp. 638-643. (elsevierpure.com)

The effect of Ni on the peak height of Cr in Fe-Cr-Mo-Ni quaternary alloys is similar to which in Fe- Cr-Ni alloys. (elsevierpure.com)

Ammasi, A (2020) Effect of Heating Rate on Decomposition Temperature of Goethite Ore. Transactions of The Indian Institute of Metals, 73(1) (IF-1.205). (nmlindia.org)

We've broken with the conventional wisdom that BMGs can only be produced from multicomponent alloys and only with the conventional approach of melting and fast quench," he explained. (scienceblog.com)
Solutions, binary and multicomponent systems: phase equilibria, materials separation and purification. (utdallas.edu)

논문] 안병민, Han-Joo Lee, In-Chul Choi, Terence G. Langdon, Jae-Il Jang, Megumi Kawasaki, Micro-mechanical behavior of an exceptionally strong metal matrix nanocomposite processed by high-pressure torsion? (ajou.ac.kr)
Rare processing techniques are covered, including direct extraction processes for rare-earth recovery, biosorption of precious metals, fluorination behavior of uranium and zirconium mixture of fuel debris treatment, and recovery of valuable components of commodity metals such as zinc, nickel, and metals from slag. (osu.cz)
the second law of thermodynamics, thermodynamic potentials, the third law of thermodynamics, thermodynamic identities and their uses, phase equilibria in one-component systems, behavior and reactions of gases. (utdallas.edu)

The two microstructural phases present in the alloy (described as a light grey phase and a dark grey phase in the patent, due to contrast under a scanning electron microscope) were found to have significantly different lattice constants (3.59Å versus 6.68Å) leading the inventors to posit that severe distortions of the crystalline network are behind an increased wear resistance as compared to single-phase alloys. (iom3.org)

Bulk metallic glasses have found more and more uses in the past 15 years or so, and have begun replacing some conventional materials such as crystalline metals, metal alloys and high-tech ceramics. (scienceblog.com)
According to the inventors, the results indicate that heat treatment leads to greater dark grey phase precipitation, which is believed to cause more crystalline network distortion and thus improved hardness and wear resistance. (iom3.org)
melting transitions, relaxations in the glassy state, liquid crystalline phase changes. (utdallas.edu)
What the team didn't know at the time was that making TiA3 at relatively high temperature produces an almost pure crystalline form of the beta version of the alloy-the crystal structure that's four times harder than titanium. (sme.org)

More precisely, a phase is a region of space (a thermodynamic system), throughout which all physical properties of a material are essentially uniform. (wikipedia.org)
Morphological stability depends on the temperature gradient G at the solidification front, the solidification front velocity V front and thermodynamic alloy properties like the segregation coefficients of the impurity elements. (springeropen.com)
To quantify the impact of these parameters on the morphological evolution, especially on the planar/cellular transition and thus on microsegregation profiles, phase field simulations coupled to a thermodynamic database are performed for an aluminium melt with three impurities, Si, Mn and Fe. (springeropen.com)
Its limit is defined by the thermodynamic properties of the alloy system, in particular by the segregation coefficients of the different elements. (springeropen.com)

For a given composition, only certain phases are possible at a given temperature and pressure. (wikipedia.org)
The choice of the alloy composition and alloying system helped us bypass this problem: annealing at about 100 degrees below the glass -transition temperature allowed to achieve ductilization of bulk samples and hardening of tape samples without embrittlement," Professor Dmitry Luzgin, the research supervisor, explained. (phys.org)
20221122 · The composition of alnico alloys is typically8-12% Al,15- -26% Ni,5-24% Co,upto6% Cu,upto1% Ti, and the balance is Fe. (trenujzems.pl)
2021119 · The composition of alnico alloys is typically 8-12% Al, 15-26% Ni, 5-24% Co, up to 6% Cu, up to 1% Ti, and the balance is Fe. (trenujzems.pl)
Modern physical and chemical methods of analysis were used during the study: X-ray fluorescence, X-ray phase, mineralogical, electron probe, chemical analyzes, IR methods to study the phase composition of ores and changes in the structure of minerals. (kims-imio.kz)
Figure 1a shows the maximum attainable rod diameter of BMG matrix composites as a function of chemical composition in the Al-(Co,Cu)-(La,Ce) alloy system. (cyberleninka.org)

They behave elastically like polymers but are much stronger than metal alloys, characteristics that make them ideal for structural engineering materials and many other applications. (scienceblog.com)
Future studies focusing on magnetic and structural phase transitions will reveal more insight into the effect of alloying in these TMH systems. (asu.edu)

While this process has analogies to the directional solidification of metallurgical alloys, it forms very different hierarchical structures. (northeastern.edu)

It is also sometimes used to refer to the equilibrium states shown on a phase diagram, described in terms of state variables such as pressure and temperature and demarcated by phase boundaries. (wikipedia.org)
Left to equilibration, many compositions will form a uniform single phase, but depending on the temperature and pressure even a single substance may separate into two or more distinct phases. (wikipedia.org)
In this simple system, phases that are possible, depend only on pressure and temperature. (wikipedia.org)
Yusheng Zhao and Jianzhong Zhang, both from Los Alamos' Lujan Neutron Scattering Center, have found that pure zirconium metal forms glass at temperatures roughly one-third of zirconium's melting temperature and static pressures around five billion pascals, or more than 50,000 times atmospheric pressure. (scienceblog.com)
2022131 · The industrial use of this alloy can stabilize deliveries and reduce the cost, especially for high-temperature applications [16, 17]. (trenujzems.pl)
In the conducted study, the kinetics of phase growth in the Cu-Sn-Cu system under conditions of isothermal annealing at a temperature (250°C) were investigated. (edu.ua)
1,2 The cluster catalysts were characterized using electron microscopy (SEM and STEM), X-ray photoelectron spectroscopy (XPS), X-ray absorption fine structure (XAFS), diffuse reflectance infrared Fourier transform (DRIFT) spectroscopies, temperature programmed desorption (TPD), gas-phase reactions, and electrochemical methods. (oist.jp)
Directional solidification of aqueous solutions and slurries in a temperature gradient is widely used to produce cellular materials through a phase separation of solutes or suspended particles between growing ice lamellae. (northeastern.edu)
Crushed barite is first converted to barium sulfide by high-temperature, solid-phase reduction with a carbonaceous reducing agent. (cdc.gov)

202116 · At the optimal annealing condition, Alloy D has a (BH) max of 2.06 MGOe, which is slightly higher than the energy product measured in isotropic cast Alnico 2 magnets which have a (BH) max of 1.7 MGOe, an H C of 580 Oe and a residual induction (B r) of 7.5 kG. (trenujzems.pl)
The main goal of the study was to determine the influence of external pressure on the thickness of the Cu3Sn and Cu6Sn5 phase during certain periods of annealing time of the system. (edu.ua)
For this purpose, the values of the phase thickness at different stages of system annealing were measured. (edu.ua)
After the calculation, graphs were drawn that show the dependence of the phase thickness on the annealing time for both systems. (edu.ua)
Graphs of changes in phase thickness from annealing time showed a noticeable difference between the studied samples. (edu.ua)

But all the bulk metallic glasses contain three or more component elements, which means they have lower thermal stability and phase separation at high temperatures, Zhao said. (scienceblog.com)
In particular, Al-based based metallic glasses have a lower density and higher specific strength compared to other metal-based metallic glasses10, which makes them viable for aerospace industrial applications11-13. (cyberleninka.org)

The present innovation describes a dry-chemical process allowing for the rapid separation of molybdenum from uranium by converting them to their corresponding metal hexafluorides. (baypat.de)

The results of such experiments can be plotted in phase diagrams. (wikipedia.org)

Tailoring PVDF Membranes Surface Topography and Hydrophobicity by a Sustainable Two-Steps Phase Separation Process. (acs.org)
Coupled Transport Membranes for Metal Separations. (cdc.gov)

Meteorites consist of varying amounts of nickel-iron alloys, silicates, sulfides, and several other minor phases. (planets.org)
Iron meteorites are characterized by the presence of two nickel-iron alloy metals: kamacite and taenite. (planets.org)
Stony-irons consist of almost equal amounts of nickel-iron alloy and silicate minerals. (planets.org)
They are an alloy of Aluminium, Nickel and Cobalt hence the term Al-Ni-Co. They are also somethimes shown as Alcomax, Columax, Hycomax and Ticonal brands. (trenujzems.pl)
The alloy has a dual-phase microstructure consisting of first and second face-centred cubic phases, where the first phase has a higher nickel content and lower content of silicon, manganese and chromium than the second phase. (iom3.org)
Melting and Casting of Raney Nickel Alloy. (cdc.gov)
Survey of Metal-containing Wastes for Chromium, Cobalt and Nickel Content. (cdc.gov)

In , it is reported that AlNiCo alloy was printed using SLM and additives which made the magnetic properties of the printed material comparable with those of cast or powder-metallurgy materials. (trenujzems.pl)
State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China. (cyberleninka.org)

Ferro alloy can be produced by steelmaking slag using carbothermic reduction as it contains Mn and Cr. (nii.ac.jp)
The elemental technologies are (1) separation of Mn and P by sulfurization, (2) selective leaching of P-rich water soluble phase in slag. (nii.ac.jp)

All Alnico alloys have strong magnetic properties and high ferromagnetism. (trenujzems.pl)
10. M. I. Katsnelson and A. I. Lichtenstein, Electronic structure and magnetic properties of correlated metals. (ru.nl)

Crystallization from the melt, e. g. via zone melting, using the segregation of impurities at the solidification front is the basic mechanism behind different technical processes for the refining of metals and semi-metals. (springeropen.com)
This is the only way to enable macroscopic separation of the impurities, e. g. by convection. (springeropen.com)
For cellular or dendritic solidification morphologies, the segregated impurities are trapped into the interdendritic melt and remain as microsegregations in the solidified metal. (springeropen.com)
In this paper, we will investigate the potential of a so called "cooled finger" solidification device (see Fig. 1 , the explanation of its operation is given further in " Cooled finger " section) for the purification of aluminum with multiple impurities via phase-field simulations. (springeropen.com)

Numerous studies indicated that glass-forming ability (GFA) of Al-based alloy systems cannot be readily understood by currently available wisdoms19-26, such as the confusion principle27, Inoue's empirical criterion3, GFA indicators (i.e., reduced glass transition temperature28, supercooled liquid range3, and y parameter29,30, which gives rise to difficulty in exploring Al-based BMGs with enhanced GFA. (cyberleninka.org)

Mutually immiscible liquid phases are formed from water (aqueous phase), hydrophobic organic solvents, perfluorocarbons (fluorous phase), silicones, several different metals, and also from molten phosphorus. (wikipedia.org)
The molten Alnico alloy is poured into sand molds. (trenujzems.pl)

At present, such components are commonly made of iron-based alloys like tool steels, manganese steels or white cast iron. (iom3.org)
Researchers at Rice University (Houston) have discovered a titanium-gold (TiAu3) alloy that is harder than most steels and may be an optimal choice for use in orthopedic joint replacement surgery. (sme.org)

Focus group session: Modeling phase separation in coherent alloys with elastic misfit. (mpg.de)

Barium is a dense alkaline earth metal that occurs naturally in ore deposits and makes up 0.05% of the Earth's crust (Genter 2001). (cdc.gov)

Dr Michael Ford MIMMM at Haseltine Lake Kempner explores a patent for wear and corrosion-resistant high-entropy alloys. (iom3.org)
It describes high-entropy alloys that appear to combine both good hardness and corrosion-resistant properties, making them suitable for use in hazardous conditions. (iom3.org)

These, combined with minor amounts of non-metallic phases and sulfide minerals, form the three basic subdivisions of irons. (planets.org)
Traditional metal alloys typically contain only one or two base elemental components (e.g. iron in the case of steel, or copper and zinc in the case of brass), to which alloying elements may be added in minor amounts. (iom3.org)

A mixture can separate into more than two liquid phases and the concept of phase separation extends to solids, i.e., solids can form solid solutions or crystallize into distinct crystal phases. (wikipedia.org)
The method is applicable to heterogeneous nucleation and it can even predict the crystal phases of atoms near external interfaces. (osti.gov)

In addition, the effect of external pressure on the process of growth or inhibition of the phase and the formation of pores was studied. (edu.ua)
Formation of BMG matrix composites in the Al-(Co,Cu)-(La,Ce) alloy system. (cyberleninka.org)
In particular, the maximum attainable rod diameter for fully glass formation is 32 mm34 for the alloys containing 10 at. (cyberleninka.org)

Transition metal di- and tri-halides (TMH) have recently gathered research attention owing to their intrinsic magnetism all the way down to their two-dimensional limit. (asu.edu)

Because titanium and gold by themselves are among the most biocompatible metals and are often used in medical implants, the researchers team believed TiAu3 would be comparable. (sme.org)
Tests by colleagues at the University of Texas MD Anderson Cancer Center in Houston showed that the new alloy was even more biocompatible than pure titanium, and the results were same for wear resistance. (sme.org)

One of the key reasons for the success of our experimental method was the high purity of the polycrystalline zirconium metal that we were given by our colleagues Paulo Rigg and Rusty Gray," Zhao said. (scienceblog.com)
We worked with them on zirconium equation of state studies at high pressures and temperatures, as well as phase diagram studies. (scienceblog.com)
20161221 · Alnico alloys have long been used as strong permanent magnets because of their ferromagnetism and high coercivity. (trenujzems.pl)
In contrast, high-entropy alloys combine multiple elements in roughly equal, or at least relatively large, proportions. (iom3.org)
For instance, some high-entropy alloys have been found to form substitutional solid solutions even though the Hume-Rothery rules might predict phase separation due to differences in elemental crystal structure. (iom3.org)
According to the patent, high-entropy alloys meeting this definition exhibit advantageously high hardness and high wear resistance, combined with good corrosion resistance, making them suitable for use in the presence of corrosive solutions such as salt water, acid or alkali. (iom3.org)
High Entropy Alloys: Innovations, Advances, and Applications (Book). (nmlindia.org)
The objectives of Phase I are (1) to construct a proof-of-principle generator for operation at 125 kV, (2) to experimentally demonstrate that a uniform, high energy ion beam can be generated, and (3) to develop the conceptual design for a Phase II laboratory prototype DNG system. (nsf.gov)
For the alloys containing a high Al content (i.e., 45-55 at. (cyberleninka.org)

Within each phase, the properties are uniform but between the two phases properties differ. (wikipedia.org)

At equilibrium, evaporation and condensation processes exactly balance and there is no net change in the volume of either phase. (wikipedia.org)

In the physical sciences, a phase is a region of material that is chemically uniform, physically distinct, and (often) mechanically separable. (wikipedia.org)
The term phase is sometimes used as a synonym for state of matter, but there can be several immiscible phases of the same state of matter (as where oil and water separate into distinct phases, both in the liquid state). (wikipedia.org)
Distinct phases may be described as different states of matter such as gas, liquid, solid, plasma or Bose-Einstein condensate. (wikipedia.org)
Distinct phases may also exist within a given state of matter. (wikipedia.org)
Not all organic solvents are completely miscible, e.g. a mixture of ethylene glycol and toluene may separate into two distinct organic phases. (wikipedia.org)
No distinct separation between the metal and silicate phases is readily apparent as it is with the Pallasites. (planets.org)

The hardness was found to increase even further when the as-cast alloy was subjected to a heat treatment at 900°C for two hours, regardless of whether water or calm air cooling was used after heating. (iom3.org)

Because during the creation of a soldered joint, reactive diffusion occurs between copper and liquid tin, as a result of which two phases are formed at their contact. (edu.ua)
Tatarchuk E. V. (2015) Influence of the size of copper grains on the growth rate of a layer of intermediate phases in a Cu-Sn diffusion pair. (edu.ua)

Elemental arsenic is usually a steel grey metal-like material without characteristic taste or smell. (cdc.gov)

Our results indicate that proper additions of transition element Fe which have a positive heat of mixing with the main constituents La and Ce can appreciably improve the formability of the BMG matrix composites by suppressing the precipitation of Al(La,Ce) phase resulted from occurrence of the phase separation. (cyberleninka.org)
In addition, it was found that additions of Fe, which has a positive heat of mixing with the main constitute elements La and Ce, further enhanced the volume fraction of glass matrix by suppressing the precipitation of the Al(La,Ce) phase. (cyberleninka.org)

This is the first time that bulk metallic glass has been formed from a single element or pure metal," Zhao said. (scienceblog.com)
Funding of early work on pressure forming of bulk glass alloys came from the internal Laboratory Directed Research and Development program. (scienceblog.com)

In a system consisting of ice and water in a glass jar, the ice cubes are one phase, the water is a second phase, and the humid air is a third phase over the ice and water. (wikipedia.org)
Water in a closed jar with an air space over it forms a two-phase system. (wikipedia.org)
The phase diagram shown here is for a single component system. (wikipedia.org)
The results of the experiment showed that the external pressure significantly slows down the growth of the Cu3Sn and Cu6Sn5 phases in the studied system. (edu.ua)
This Small Business Innovation Research Phase I project involves research on development and application of an optical data acquisition system, I/O devices, and optical data analysis and recognition. (nsf.gov)
Specifically, an optical security system embodying phase-encoding will be conceptualized as encryption means in conjunction with biometric measurements, with the general objective of producing an automatic, tamper-proof security system. (nsf.gov)
The concept will be rapidly prototyped for a proof-of-concept experiment, for feasibility evaluation, and for providing a preliminary design and demonstration plan for Phase II, which will involve development, building, and testing of a brass-board model of the optical security system. (nsf.gov)
This Small Business Innovation Research Phase I project will demonstrate a new class of optical devices that will form the heart of a low-cost, versatile, field-usable environmental monitoring system to be developed in Phase II. (nsf.gov)
It was reported that the increment in Al drastically reduces the glass forming ability in this alloy system. (cyberleninka.org)

Anatomy4

Organisms3

Chemicals and Drugs124

Analytical, Diagnostic and Therapeutic Techniques and Equipment68

Psychiatry and Psychology2

Phenomena and Processes43

Disciplines and Occupations6

Technology, Industry, Agriculture35

Information Science3

Health Care4

Journal of Alloys and Compounds2

Compounds3

Amorphous11

Entropy alloy4

Ternary8

Quaternary1

20201

Multicomponent2

Behavior3

Microstructural1

Crystalline4

Thermodynamic4

Composition6

Structural2

Metallurgical1

Temperature9

Annealing5

Metallic Glasses2

Uranium1

Diagrams1

Membranes2

Nickel7

Materials2

Slag2

Magnetic properties2

Impurities4

BMGs1

Molten2

Steels2

Elastic1

20011

Corrosion resistant2

Minor amounts2

Crystal phases2

Formation3

Transition metal1

Titanium2

High9

Properties1

Processes1

Distinct6

Hardness1

Diffusion2

Elemental1

Precipitation2

Bulk2

System9