ニッケルめっき膜の残留応力に及ぼす亜鉛イオンの影響 Effects of Zinc Ions in the Plating Bath on the Internal Stress in the Nickel Deposits

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The effects of zinc ions on the internal tensile stress in nickel deposits obtained from Watts-type baths were studied. The variations in the elastic deformation of the deposits was measured in situ using a resistance wire-type strain gauge placed on the reverse side of the copper electrode.<br>Zinc ions were adsorbed by nickel hydroxide formed on and close to the electrode surface during nickel electroplating and codeposited as zinc oxide with nickel in the deposits. However, at a potential of less noble than-102V (vs Ag/AgCl sat. KCl), a part of zinc ions was electrically reduced to metallic zinc and codeposited with zinc oxide in the deposits. The amount of zinc oxide included in the deposits increased with an increase in the concentration of zinc ions in the plating solutions. The internal tensile stress in the deposits increased with an increase in the amount of the included zinc oxide and the increased tensile stress caused many cracks on the surface of nickel deposits.

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(11), 1115-1118, 1997-11-01 

    The Surface Finishing Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002260293
  • 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
    4334603
  • 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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