ヘキサヒドロオクソ白金酸塩を用いたアルカリ性白金電鋳浴 Alkaline Platinum Electroforming Bath Using Hexahydroxoplatinate

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著者

    • 鎗田 聡明 YARITA Somei
    • 日本エレクトロプレイティング・エンジニヤース(株)R&D セクション Electroplating Engineers of Japan Ltd.
    • 来田 勝継 KITADA Katutugu
    • 日本エレクトロプレイティング・エンジニヤース(株)R&D セクション Electroplating Engineers of Japan Ltd.

抄録

We studied the influence of bath composition, operating conditions, and impurities on a platinum electroforming bath using hexahydroxoplatinate salt.<br>The effect of bath temperature on deposite were studied using a platinum concentration of 13g/L and a pH of 135.<br>Crack-free deposits resulted at temperatures of exceeding 85°C. At a platinum concentration of 26g/L, the pH was 13.5 and temperature 90°C, yielding a 60μm platinum foil. The platinum content of deposits exceeded 99.9%, which contained palladium, rhodium, gold, silver, copper, and iron impurities.<br>X-ray diffraction imaging showed a strong (200) orientation on ductile deposits.<br>Deposit hardness exceeded 300Hv and hardness decreased in heat treatment exceeding 600°C.<br>The bath thus is easily influenced by impurities.<br>Calcium is thought to be a deterioration agent.<br>The presence of calcium, strontium or barium made the deposit less ductile and brighter.<br>The influence of alkaline earth metals was eliminated through electrolysis, coprecipitation with magnesium hydroxide, and absorption to chelate resin.

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(7), 719-722, 1997-07-01 

    The Surface Finishing Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002259482
  • 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
    4248979
  • 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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