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Article
Investigation of Hydrogen Evolution Reaction on (TiCr1.8)xV100 – x Alloys via Impedance Spectroscopy Method
The behavior of the (TiCr1.8)xV100 – x intermetallic system in the reaction of hydrogen evolution in 1 M KOH solution has been studied by polarization measurements and electrochemical impedance spectroscopy. Cath...
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Article
Hydrogen storage systems based on magnesium hydride: from laboratory tests to fuel cell integration
The paper reviews the state of the art of hydrogen storage systems based on magnesium hydride, emphasizing the role of thermal management, whose effectiveness depends on the effective thermal conductivity of t...
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Article
The Influence of Vanadium on Magnetism and Magnetocaloric Properties of Fe 8 0 − x V x B12Si8 (x = 8, 10, and 13.7) Amorphous Alloys
Amorphous soft magnetic Fe80−x V x B12Si8 ribbons (0 ≤ x ≤ 14) have been fabricated by melt spinning technique, and their magnetic and magnetocaloric properties have been studied...
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Article
Structural, magnetic and electronic transport studies of RAgSn2 compounds (R = Y, Tb, Dy, Ho and Er) with Cu3Au-type
RAgSn2 compounds, where R = Y, Tb, Dy, Ho and Er, were synthesized by arc-melting and subsequent annealing at 870 K. The formation of cubic phases with Cu3Au-type structure (space group
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Article
Spin-lattice relaxation and mobility of protons in the lattice of the TiV0.8Cr1.2 alloy
Titanium-vanadium-chromium alloys are promising materials for hydrogen storage. They can absorb up to 3.8 wt % of hydrogen with a variable (depending on the composition) temperature of hydrogen release in a co...
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Article
Electronic structure and stability of Mg6TiM (M = Mg, Al, Zn) and their hydrides
The influence of Al and Zn atoms on the stability of the Mg7Ti compound and its hydride Mg7TiH16 has been studied theoretically. The calculations have been carried out in terms of the full-potential linearized au...
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Article
Enhancing magnetic properties of anisotropic NdDyFeCoNbCuB powder by applying magnetic field at high temperature during hydrogen desorption
Anisotropic powder was prepared with precursor (NdDy)-(FeCoNbCu)-B sintered magnets by hydrogen decrepitation, desorption, and subsequent annealing treatment. The hydrogen desorption was performed in magnetic ...
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Article
Features of an intermetallic n-ZrNiSn semiconductor heavily doped with atoms of rare-earth metals
The crystal structure, density of electron states, electron transport, and magnetic characteristics of an intermetallic n-ZrNiSn semiconductor heavily doped with atoms of rare-earth metals (R) have been studied i...
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Article
The mechanism of generation of the donor- and acceptor-type defects in the n-TiNiSn semiconductor heavily doped with Co impurity
Temperature dependences of resistivity, thermoelectric coefficient, and structural characteristics of the n-TiNiSn intermetallic semiconductor heavily doped with Co impurity (the Co concentration N ...
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Article
Features of structural, electron-transport, and magnetic properties of heavily doped n-ZrNiSn semiconductor: Fe acceptor impurity
Structural, energy, electron-transport, and magnetic characteristics of the n-ZrNiSn intermetallic semiconductor heavily doped with Fe (the concentration N Fe ≈ 9.7 × 1019−3.8 × 1021 cm−3)...
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Article
Features of the structural, electrokinetic, and magnetic properties of the heavily doped ZrNiSn semiconductor: Dy acceptor impurity
The structural, energy, electrokinetic, and magnetic characteristics of the intermetallic semiconductor ZrNiSn heavily doped (to 9.5 × 1019–3.8 × 1021 cm−3) with Dy acceptor impurity have been investigated in the...
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Article
Mechanism of local amorphization of a heavily doped Ti1 − x V x CoSb intermetallic semiconductor
Structural and electron transport characteristics of a TiCoSb intermetallic semiconductor heavily doped with the V donor impurity (dopant concentration ∼9.5 × 1019 − 1.9 × 1021 cm−3, temperatures 80–380 K) have b...
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Article
Features of electrical conductivity in the n-ZrNiSn intermetallic semiconductor heavily doped with the In acceptor impurity
The temperature and concentration dependences of resistivity and thermopower in a heavily doped and highly compensated semiconductor alloy ZrNiSn1−x In x
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Article
Ab initio calculations of the stability of disordered Ti-V-Cr solid solutions and their hydrides
The electronic structure of Ti-V-Cr alloys is calculated using the Korringa-Kohn-Rostoker method in the coherent potential approximation. The phase stability of the alloys is investigated as a function of the ...
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Article
Conditions for attaining the maximum values of thermoelectric power in intermetallic semiconductors of the MgAgAs structural type
A condition for attaining the maximum values of thermoelectric power Z* in intermetallic semiconductors of the MgAgAs structural type consists in heavy do** of these semiconductors with donor and/or acceptor im...
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Article
Role of the impurity band during the insulator-metal transition as the composition of highly doped and compensated TiCo1–x NixSb semiconductor alloy is varied. Donor impurities
The role of the impurity donor band in the conductivity of the heavily doped and compensated intermetallic TiCoSb semiconductor is determined. The electronic structure of the TiCo1–x NixSb...
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Article
Special features of conductivity mechanisms in heavily doped n-ZrNiSn intermetallic semiconductors
The effect of high concentrations of acceptor dopants (N A = 1020 cm−3) on the electronic structure, Fermi level, electrical conductivity, Seebeck coefficient, and magnetic susceptibility of n-ZrNiSn intermetalli...
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Article
Specific features of the metal-insulator conductivity transition in narrow-gap semiconductors of the MgAgAs structure type
The role of the impurity acceptor band in the conductivity of the doped and compensated ZrNiSn semiconductor is assessed. A reconstruction model of the impurity band as a result of do** the semiconductor wit...
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Article
Effect of Hydrogen on the Crystallization of Amorphous Ti50Ni25Cu25 Titanium Alloy
We describe effects unknown earlier in the physics of interaction between hydrogen and amorphous metallic alloys: an increase in the crystallization temperature of hydrogen-containing Ti50Ni25Cu25 alloy in the co...
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Article
Effect of Hydrogen on the Properties of Rapidly Quenched Tini-Ticu Alloys with Shape Memory
We show that, after the introduction of hydrogen into rapidly quenched Ti50Ni25Cu25 alloys in the crystalline, amorphous, or amorphous-crystalline state, their shear modulus and electric resistance change appreci...
