Pressure-induced phase transformations in a-Ge
The high pressure phase transformations of silicon and germanium at the nanoscale
... high-pressure-induced phase transformation behaviour of Si and Ge is affected by many factors such as shear, impurity level, strain rate, temperature, and volume of ma- ...the phase ...
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Pressure-induced multiple phase transformations of the BaBi3 superconductor
... multiple phase transformations of the BaBi3 superconductor Abstract Measurements of temperature-dependent resistance and magnetization under hydrostatic pressures up to ...temperature-pressure ...
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Pressure Dependence of Hydrogen Induced Transformations in C15 Laves Phase DyCo2
... hydrogen pressure increases, the peak temperature T p for HIA is almost constant in contrast to DyFe 2 , indicating that H 2 does not enhance the short-range diffusion of Dy and Co ...The pressure dependence ...
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Nanoindentation-Induced phase transformations in amorphous Germanium
... substrate, may contain a greater volume of r8 than the equivalent Si indent, and thus it may well be possible that r8 alone is present after final indentation pressure release. To further aid the interpretation of ...
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Phase Transformations Induced by Severe Plastic Deformation
... crystalline Ge disks were subjected to HPT under the nominal pressure of 24 ...diamond-cubic Ge-I and simple tetragonal Ge-III nanograins in addition to amorphous ...of Ge-I as well as ...
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High Pressure Torsion Deformation Induced Phase Transformations and Formations: New Material Combinations and Advanced Properties
... a pressure of several GPa is applied during the deformation ...initial phase sizes of 50 µm, the applied shear strain should be at least 50,000 to achieve a steady state in the case of ideal ...one ...
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Theoretical Investigation of Pressure-Induced Structural Transformations of Ethylenediamine Bisborane
... EDAB Phase transitions of molecular crystals under compression are complicated chemical processes in which both inter- and intra-molecular interactions play a ...high pressure, forming dihydrogen ...high ...
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On Graphite Transformations at High Temperature and Pressure Induced by Absorption of the LHC Beam
... the phase diagram of ...two pressure components: only the first one is that of directly thermal origin, uniquely defined by temperature; the second component is, however, the pressure of neighbouring ...
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High Pressure Phase Transformations under Severe Plastic Deformation by Torsion in Rotational Anvils
... for coupled PT and plasticity with large plastic, transforma- tional, and elastic deformations was developed. It includes the same strain-controlled microscale kinetic equation, the Murnaghan elastic rule, and ...
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High-Pressure Phase Transformations under Severe Plastic Deformation by Torsion in Rotational Anvils
... 20 was first obtained experimentally for PT in potassium chloride 7,19 and fullerene 19,20 and named the “pressure self-multiplication effect.” While this effect formally contradicts the principle of Le Shatelie, ...
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Effect of heat treatment on structural and phase transformations in the Ti49.5Ni50.5 alloy amorphized by high-pressure torsion
... stresses induced by a shear TMT in nanostructured TiNi alloys is achieved due to not only twinning and not only in separate nanograins but also in much larger microvolumes, ...
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Fluorite Phase Transformations under Vacuum
... the induced thermodynamic alterations providing direct vapour to solid phase transformation (sublimation) or indirect one—via vapour condensation and follow- ing ...ternal pressure imposed from ...
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Real Hydrostatic Pressure in High Pressure Torsion Measured by Bismuth Phase Transformations and FEM Simulations
... a phase transformation from the α phase to the ω phase under 2–3 GPa 24) ...this phase transformation was first reported by Bridgman in 1948 under pressures higher than ...ω phase after ...
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Pressure Induced Half-Collapsed-Tetragonal Phase in CaKFe4As4
... under pressure up to ∼4 GPa and then discontinuously disap- ...the phase transition from a tetragonal to a half-collapsed tetragonal phase near 4 ...
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Pressure Induced Structural Phase Transition and Valence Change
... hydrostatic pressure on a solid material has a direct effect on the extra-nuclear electronic states of the constituent atoms in the ...of pressure on the various properties of the material, such as ...
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Phase Transformations in Metals and Alloys
... Phase Transformations in Metals and Alloys THIRD EDITION DAVID A.[r] ...
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Pressure Induced Structural Phase Transition, Metallization and Superconductivity in KI
... the phase transition pressure at which the compound undergoes structural phase transition from NaCl to CsCl are predicted from the total energy ...of pressure for both in NaCl and CsCl ...
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Pressure Induced Structural Phase Transition, Metallization and Superconductivity in RbBr
... structural phase transition, metallization and superconductivity of the simple alkali bromide, Rubidium bromide (RbBr) is investigated through their band ...high pressure RbBr undergoes a structural ...
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PRESSURE INDUCED PHASE TRANSITIONS IN NICKEL AND CHROMIUM BASED ALLOYS
... In contrast to several recent investigations we observe well defined anomalies in both resistivity and TEP near 10 kbar at ambient temperature which provide new and conclusive evidence f[r] ...
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Pressure-induced phase transition in the AlCoCrFeNi high-entropy alloy
... the phase transition is closely associated with severe lattice distortion in the {110} planes of the initial B2 ...A pressure-induced polymorphic phase transition in a bcc-structured (or- ...
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