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A study of the thermodynamics of the crystalline-to-amorphous transformation in Zr-based hydrides by means of thermal analysis

Published online by Cambridge University Press:  31 January 2011

X. L. Yeh  and
E. J. Cotts
X. L. Yeh
Affiliation:
W. M. Keck Laboratory, California Institute of Technology, Pasadena, California 91125
E. J. Cotts
Affiliation:
W. M. Keck Laboratory, California Institute of Technology, Pasadena, California 91125
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Abstract

Amorphous Zr–Rh and Zr–Pd hydrides are prepared both by hydriding metallic glasses and by hydriding metastable, polycrystalline fcc alloys. The thermal stabilities of the amorphous hydrides produced by these two distinct methods are examined by means of differential scanning calorimetry and are found to be similar. The enthalpy difference between the fcc phase and the amorphous phase of Zr81Rh19 is determined to be 0.6 kcal/mol. The thermal stability of Zr–Rh hydrides as a function of hydrogen concentration is investigated.

Type
Articles
Information
Journal of Materials Research , Volume 2 , Issue 2 , April 1987 , pp. 173 - 177
Copyright
Copyright © Materials Research Society 1987

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References

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