亜鉛鋼板上へのコロイダルシリカ化成膜の成膜性に及ぼす浴組成の効果 Effect of Bath Composition on the Formation of Silica Conversion Film on Zinc-Electroplated Steel

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抄録

Colloidal silica films were produced on zinc-electroplated steel using a new chemical conversion treatment, which provides an alternative to chromate conversion coating. The treatment solution consisted of colloidal silica, titanium sulfate, cobalt sulfate and nitrate ions at 298K, pH2. The corrosion resistance of the film coated specimens was estimated by impedance measurement in a sodium chloride solution for 8 days.<br>The effects of colloidal silica concentration, treatment time and additive ions on corrosion resistance and adhesion of the film were investigated. The addition of titanium sulfate to the colloidal silica solution changed the surface potential of silica particles from negative to positive and improved the film characteristics. The addition of cobalt sulfate enhanced the adhesion between the zinc on the steel and the silica film. The film was not formed without nitride ions. Chemical conversion for 90s in a solution containing 200mM colloidal silica, 4.2mM titanium sulfate, 1.8mM cobalt sulfate, 4.2mM succinic acid and ajusted pH2 by nitric acid at 298K showed excellent film characteristics.

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 54(11), 806-811, 2003-11-01

    The Surface Finishing Society of Japan

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各種コード

  • NII論文ID(NAID)
    10012549055
  • 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
    6781608
  • 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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