Hydrogenation of MgNi_2 by Atomic Hydrogen at Elevated Temperatures

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Hydrogenation of MgNi<SUB>2</SUB> by atomic hydrogen was examined at elevated temperatures. Mg<SUB>2</SUB>Ni powder was compacted into a disk and heated in vacuum at 773 K for outgassing. During this heat treatment, Mg<SUB>2</SUB>Ni was transformed into MgNi<SUB>2</SUB> by evaporation of Mg. This specimen was hydrogenated at 573, 673 and 773 K by hydrogen gas of 30 Pa and atoms produced by rf-discharge. No significant hydrogenation took place by hydrogen gas. On the other hand, the specimen was hydrogenated by the exposure to atoms at 773 K up to [H]⁄[M]=0.14 within 25 ks. New peaks appeared in the diffraction pattern of Cu Kα X-rays at 2θ=34.0, 42.0, 48.9 and 86.6<SUP>°</SUP>. This observation indicated that the hydride formed was in a cubic structure.

収録刊行物

  • Materials transactions

    Materials transactions 43(5), 1105-1109, 2002-05-01

    公益社団法人 日本金属学会

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各種コード

  • NII論文ID(NAID)
    10012323554
  • NII書誌ID(NCID)
    AA1151294X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13459678
  • NDL 記事登録ID
    6180300
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z53-J286
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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