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    • Keywords

       

      Magnesium nickel hydride; phase transition; enthalpy; entropy of formation

    • Abstract

       

      Magnesium nickel hydride, Mg2NiH4, exists in two crystallographic modifications, the low temperature phase crystallizing in monoclinic structure and the high temperature phase having a cubic structure. The phase transition (∼510 K) was accompanied by a small composition change. The enthalpies and entropies of formation of these hydrides were calculated from the DTA data and compared with the values obtained by other methods.

    • Author Affiliations

       

      P Selvam1 B Viswanathan1 C S Swamy1 V Srinivasan1

      1. Department of Chemistry, Indian Institute of Technology, Madras - 600 036, India
    • Dates

       
  • Bulletin of Materials Science | News

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