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

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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.

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Authors and Affiliations

  1. W. M. Keck Laboratory, California Institute of Technology, Pasadena, California, 91125, USA

    X. L. Yeh & E. J. Cotts

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  1. X. L. Yeh
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  2. E. J. Cotts
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Yeh, X.L., Cotts, E.J. A study of the thermodynamics of the crystalline-to-amorphous transformation in Zr-based hydrides by means of thermal analysis. Journal of Materials Research 2, 173–177 (1987). https://doi.org/10.1557/JMR.1987.0173

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  • DOI: https://doi.org/10.1557/JMR.1987.0173

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