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Hydrogen heat treatment of hydrogen absorbing materials

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Abstract

This study introduces the hydrogen heat treatment of hydrogen absorbing materials and its applicability for practical use. This treatment is somewhat different from normal heat treatment because of the interaction between metal atoms and hydrogen. Since hydrogen can be removed very fast by pumping it out the hydrogen-induced new lattice phase which can not be obtained without hydrogen can be preserved in a meta-stable state. A thermodynamic interpretation of the hydrogen heat treatment established previously was reformulated for graphical and analytical methods and applied to Pd-Pt-H and Pd-Ag-H alloy systems and a fair correlation between the calculation and experimental results was shown. The feasibility of applying the thermodynamic interpretation to intermetallic compounds-hydrogen systems was also discussed.

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  1. Department of Metallurgical Engineering, Chonnam National University Regional Research Center/High Quality Electric Components and Systems, 300 Yongbong-dong, Puk-ku, 500-757, Kwangju, Korea

    Choong-Nyeon Park

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  1. Choong-Nyeon Park
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Park, CN. Hydrogen heat treatment of hydrogen absorbing materials. Metals and Materials 6, 595–599 (2000). https://doi.org/10.1007/BF03028105

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  • DOI: https://doi.org/10.1007/BF03028105

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