無水フッ化水素で表面改質したLaNi_<4.7>Al_<0.3>の水素吸蔵特性におよぼす大気保存の影響 Effect of Preservation in the Air on the Hydriding Characteristics of the LaNi_<4.7>Al_<0.3> Alloy Treated by Anhydrous Hydrogen Fluoride

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抄録

Hydriding characteristics of LaNi<sub>4.7</sub>Al<sub>0.3</sub> alloys with surfaces modified by high-purity anhydrous HF were evaluated after long-term preservation in air. Affected by poisoning species in air, untreated alloy hydriding activity was enormously decreased. HF-treated alloys with a modified surface layer containing metal fluoride NiF<sub>2</sub>, LaF<sub>3</sub> and AlF<sub>3</sub> maintained relatively high activity. In high-humidity air, metal fluoride NiF<sub>2</sub> reacted with moisture to form hydrous Ni(OH)<sub>2</sub>, and permeation of poisonous species such as O<sub>2</sub>, CO and CO<sub>2</sub> was markedly inhibited by moisture-condensed hydrate screens.

収録刊行物

  • 表面技術 = The Journal of the Surface Finishing Society of Japan  

    表面技術 = The Journal of the Surface Finishing Society of Japan 48(12), 1207-1211, 1997-12-01 

    The Surface Finishing Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002260594
  • NII書誌ID(NCID)
    AN1005202X
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09151869
  • NDL 記事登録ID
    4367243
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-291
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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