Results 211 to 220 of about 13,051 (265)
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Tracer diffusion in amorphous alloys
Materials Science and Engineering, 1988Abstract Self-diffusion in various iron-based amorphous metal-metalloid alloys and in amorphous metal-metal systems Fe x Zr 100−x was investigated using radioactive 59 Fe and 95 Zr tracer atoms in combination with ion-beam sputtering for serial sectioning.
J. HORVÁTH +3 more
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Properties of amorphous Si:F:H alloys
Journal of Non-Crystalline Solids, 1980Previously we have shown that amorphous silicon-based alloys containing F and H (1–7) possess desirable properties for photovoltaic application. Amorphous tetrahedral semiconductors ordinarily possess a very large density of states which act as traps leading to low values for drift mobility and low recombination lifetimes of free carriers.
A. Madan, S. R. Ovshinsky
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Structure of amorphous metallic alloys and the conditions of amorphization
Metal Science and Heat Treatment, 2000The results of x-ray study of amorphous metal alloys are compared with the structural parameters of intermediate phases determined for equilibrium state diagrams and primary products of crystallization upon warming of amorphous alloys and crystal phases (formed at “subcritical” cooling rates) of the alloys susceptible to amorphization. It is found that
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Diffusion mechanisms in amorphous alloys
Materials Science and Engineering, 1988Abstract A critical analysis of experimental data shows that self-diffusion in relaxed amorphous alloys is controlled by mechanisms involving collective thermal activations. Whereas in FeZr alloys both 59Fe and 95Zr diffuse via direct mechanisms that change with the alloy composition (e.g.
W. FRANK, J. HORVÁTH, H. KRONMÜLLER
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Spin fluctuations in an amorphous alloy
Physical Review B, 1996Enhancement of the effective electron mass by spin fluctuations (SF's) has been studied in a-${\mathrm{Fe}}_{\mathit{x}}$${\mathrm{Zr}}_{100\mathrm{\ensuremath{-}}\mathit{x}}$ (27%\ensuremath{\leqslant}x\ensuremath{\leqslant}39%) by low-temperature calorimetry.
, Dawson, , Ryan, , Baxter
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Journal of Materials Processing Technology, 1992
Abstract Fe-based and Ni-based amorphous foils with thicknesses of 25–30 μm have been used for bending experiments. First, the mechanical and physical properties of the foils were measured, after which bending experiments were carried out by four bending methods, i.e., conventional V-bending, L-bending with a lateral force, multi-stage V-bending and ...
S. Suto, K. Matsuno, T. Sano, K. Matsui
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Abstract Fe-based and Ni-based amorphous foils with thicknesses of 25–30 μm have been used for bending experiments. First, the mechanical and physical properties of the foils were measured, after which bending experiments were carried out by four bending methods, i.e., conventional V-bending, L-bending with a lateral force, multi-stage V-bending and ...
S. Suto, K. Matsuno, T. Sano, K. Matsui
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Applications of Amorphous Magnetic Alloys
Materials Science and Engineering: A, 2004Examples of several recent developments in the use of amorphous magnetic alloys are summarized. They include from such devices as utility transformers for energy conservation, charged particle accelerators for energy generation, sensors to monitor energy flow and the environment, and telecommunication devices.
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Journal of Materials Science & Technology, 2018
Abstract Owing to their unique short- or medium-range ordered microstructures and excellent mechanical, physical, and chemical properties, amorphous alloys have attracted significant interest in recent years. For the application of amorphous alloys, clarifying their oxidation processes and mechanisms is necessary since many of the surface-related ...
Zhiqiang Xu +4 more
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Abstract Owing to their unique short- or medium-range ordered microstructures and excellent mechanical, physical, and chemical properties, amorphous alloys have attracted significant interest in recent years. For the application of amorphous alloys, clarifying their oxidation processes and mechanisms is necessary since many of the surface-related ...
Zhiqiang Xu +4 more
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Uspekhi Fizicheskih Nauk, 1990
The experimental data on the structure of and the structural defects and structural relaxation in amorphous metallic alloys are reviewed. The elastic and inelastic properties of amorphous metallic alloys and the effect of disorder in the arrangement of atoms on the ferromagnetic properties of amorphous metallic alloys are also studied.
I V Zolotukhin, Yu E Kalinin
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The experimental data on the structure of and the structural defects and structural relaxation in amorphous metallic alloys are reviewed. The elastic and inelastic properties of amorphous metallic alloys and the effect of disorder in the arrangement of atoms on the ferromagnetic properties of amorphous metallic alloys are also studied.
I V Zolotukhin, Yu E Kalinin
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Amorphization by mechanical alloying
Journal of Non-Crystalline Solids, 1990The solid state amorphization methods of mechanical alloying (MA) of mixtures of elemental powders and mechanical milling (MM) of single component powder (intermetallic compound or element) are discussed. The mechanism for amorphization by MA is probably a variation of amorphization by interdiffusion of thin film diffusion couples with the added ...
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