Novel Magnesium-Manganese Hydrides Prepared by the Gigapascal High Pressure Technique

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The synthesis of new ternary hydrides in the Mg<I><SUB>x</SUB></I>Mn<I><SUB>y</SUB></I>H<I><SUB>z</SUB></I>-system (<I>x</I>:<I>y</I>=1,2,3, or 4:1) was investigated by applying high pressures. Powder mixtures of magnesium hydride and manganese were pressed into a pellet and compressed at a pressure of 6 gigapascal by using a machine with 6–8 multi-anvils during heating up to 873 K. The resultant samples were studied by means of X-ray powder diffraction, thermogravimetry and differential thermal analysis. A new hydride of Mg<SUB>3</SUB>MnH<SUB>5∼6</SUB> containing at least 2.4 mass% hydrogen was found, which can be indexed as a monoclinic structure with cell parameters of <I>a</I>=0.8827(2) nm, <I>b</I>=0.4657(2) nm, <I>c</I>=0.4676(2) nm and β=105.72(2)<SUP>°</SUP>. The desorption temperature of hydrogen was determined as 603 K.

収録刊行物

  • Materials transactions

    Materials transactions 43(5), 1124-1126, 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)
    10012323618
  • 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
    6180362
  • 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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