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Electrical resistivity studies on ZrxTb1-xFe3 (x = 0.2, 0.3) hydrides
, K. V.S. Rama Rao
Published in
2001
Volume: 13
   
Issue: 18
Pages: 4155 - 4164
Abstract
The hydrogen absorption isotherm at 30°C in the range 0.2 ≤ P (bar) ≤20 for Zr0.2Tb0.8Fe3 and Zr0.3Tb0.7Fe3 shows the presence of α, (α + β and β phases. The study of the kinetics of hydrogen absorption in Zr0.2Tb0.8Fe3 at 30°C as a function of pressure in the range 8 ≤ P (bar) ≤50 shows the presence of different phases. The dependence of the electrical resistivity (ρ) on the hydrogen concentration in the Zr0.2Tb0.8Fe3-H and Zr0.3Tb0.7Fe3-H systems is discussed on a basis of the combined effects of depopulation of conduction electrons and formations of various phases, namely α, α + β and β. Changes in the slopes of the plots of ρ against y indicate the different phase regions.
About the journal
JournalJournal of Physics Condensed Matter
ISSN09538984
Open AccessNo
Concepts (9)
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    Electric conductivity of solids
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    Electrons
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    Isotherms
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    Phase composition
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    Reaction kinetics
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    Zirconium compounds
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    Conduction electrons
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    ZIRCONIUM TERBIUM IRON COMPOUNDS
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    Hydrides