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

• 鎗田 聡明

  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

• 来田 勝継

  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

書誌事項

タイトル別名

• Alkaline Platinum Electroforming Bath Using Hexahydroxoplatinate.
• ギジュツ ロンブン ヘキサヒドロオクソ ハッキンサンエン オ モチイタ アルカ

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

  表面技術 48 (7), 719-722, 1997

  一般社団法人 表面技術協会

キーワード

• Platinum
• Electroforming
• Hexahydroxoplatinate
• Alkaline earth Metal

詳細情報

• CRID: 1390282679091881216
• NII論文ID: 10002259482
• NII書誌ID: AN1005202X
• DOI: 10.4139/sfj.48.719
• COI: 1:CAS:528:DyaK2sXks1CnsLk%3D
• ISSN: 18843409
• ISSN: 09151869
• NDL書誌ID: 4248979
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4248979
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可