Protium absorption properties of La-TM-Si (TM=Co, Ni) ternary intermetallic compounds

Hirofumi Kakuta, Toshiyuki Ogawa, Hitoshi Takamura, Masuo Okada

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The protium-absorbing characteristics such as the amount of absorbing protium and the hydrogen reaction have been studied for the LaTMSi, LaTMSi2 and LaTM2Si2 (TM=Co, Ni) ternary intermetallic compounds. For these compounds, it is found from DSC measurements that only the LaCoSi and LaNiSi compounds show hydride reactions at elevated temperatures. The LaCoSi alloy has a disproportionation reaction at 457 K, whereas the LaNiSi alloy reversibly absorbs and desorbs protium near 425 K. The maximum absorbed amount of protium is 0.52 mass% for the LaNiSi alloy.

Original languageEnglish
Pages (from-to)769-772
Number of pages4
JournalMaterials Transactions, JIM
Volume39
Issue number7
DOIs
Publication statusPublished - 1998 Jul

Keywords

  • Hydride reaction
  • Lanthanum-(cobalt, nickel)-silicon ternary compounds
  • Protium absorption properties

ASJC Scopus subject areas

  • Engineering(all)

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