酸性浴からの電析コバルトの優先配向 Preferred Orientation of Cobalt Films Electrodeposited from Acidic Melts

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Cobalt was electrodeposited on copper substrate from sulfate, sulfate plus boric acid, sulfamate and chloride baths with a pH of 20-50. Deposits were prepared over a temperature range of 20-80°C. Crystalline orientation was determined by the X-ray diffraction method. The cobalt deposits from the sulfate plus boric acid and chloride baths exhibited strong (100) preferred orientation at the low overpotentials and strong (110) preferred orientation at the high overpotentials. This preferred orientation of the deposits from the sulfate plus boric acid and chloride baths is not consistent with the crystalline orientations predicted by Pangarov using the two dimensional platelets model. However, the deposits from the sulfate, sulfamate and part sulfate plus boric acid baths exhibited (002) preferred orientation over a wide range of plating conditions. The case in forming a direction of magnetization perpendicular to the substrate may possibly facilitate preparation of perpendicular magnetic recording media. The (002) preferred orientation affinity was related to the appearance of a shoulder in the polarization curves in the vicinity of the immersion potential and a subsequent abrupt increase in current, which are attributable to facile crystal formation and growth.

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(1), 68-75, 1997-01-01

    The Surface Finishing Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002258182
  • 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
    4118799
  • 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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