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of 121
pro vyhledávání: '"G.P Tiwari"'
Given that the basic purpose of all research in materials science and technology is to tailor the properties of materials to suit specific applications, phase transformations are the natural key to the fine-tuning of the structural, mechanical and co
Publikováno v:
International Journal of Current Microbiology and Applied Sciences. 8:2367-2374
Publikováno v:
Journal of Nuclear Materials. 492:183-188
The isotopic effect on the dehydrogenation kinetics of lithium alanate has been studied. The desorption of hydrogen/deuterium of LiAlH4/LiAlD4 occurs in two steps below 300 °C. The deuterium desorption temperature of LiAlD4 was found to be marginall
Publikováno v:
Thermochimica Acta. 652:103-108
Thermodynamics and kinetics of hydrogenation-dehydrogenation of nanometric iron (nFe) doped Mg-MgH 2 system have been studied. The nFe-doped Mg could be hydrogenated even at 0 °C up to 45% of the theoretical hydrogen storage capacity within an hour.
Autor:
G.P. Tiwari, Sanjay Kumar
Publikováno v:
Journal of Materials Science. 52:6962-6968
The thermodynamics and kinetics of hydrogen absorption–desorption of nfTa2O5–Mg–MgH2—composite (nf stands for nano-flakes) have been studied. The nfTa2O5–Mg composite could absorb hydrogen at room temperature (17 °C). The hydrogen desorpti
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Publikováno v:
Energy. 75:520-524
Single phase FeTi intermetallic and FeTi-3.1 mass % V alloy were synthesized by vacuum arc melting using high purity elemental constituents. The crystal structure of both, FeTi intermetallic and FeTi-3.1 mass % V alloy was found to be of CsCl-type. U
Publikováno v:
Philosophical Magazine. 94:404-419
Huntington–Elcock–McCombie (HEM) mechanism involving six consecutive and correlated jumps, a triple-defect mechanism (TDM) involving three correlated jumps and an anti-structure bridge (ASB) mechanism invoking the migration of an anti-structure a
Publikováno v:
Processing and Application of Ceramics, Vol 6, Iss 2, Pp 73-76 (2012)
The volume expansion of tantalum due to the dissolved hydrogen has been determined using Bragg equation. The hydrogen was dissolved in the pure tantalum metal at constant temperature (360?C) and constant pressure (132 mbar) by varying the duration of
Publikováno v:
International Journal of Refractory Metals and Hard Materials. 31:76-81
Hydrogen solubility was studied in vanadium and series of vanadium aluminum alloys at varying temperatures and pressures. The alloys were prepared through aluminothermy followed by electron beam refining and consolidation through vacuum arc melting.