硫酸塩浴からのＺｎ‐Ｃｒ合金の電析過程

• LIN Ye

  Graduate School, Kyushu Univ.

• 大貝 猛

  九州大学工学部

• 秋山 徹也

  九州大学工学部

• 福島 久哲

  九州大学工学部

• 山内 祐樹

  九州大学大学院

書誌事項

タイトル別名

• Electrodeposition Process of Zn-Cr Alloys from Sulfate Baths.
• リュウサンエンヨク カラ ノ Zn Cr ゴウキン ノ デンセキ カテイ

抄録

The electrodeposition of Zn-Cr alloys from sulfate baths was conducted to investigate the codeposition mechanism of Cr with Zn. Results are as follows:<br>(1) Cr was codeposited with Zn at high current densities in both polyethylene glycol (PEG)-free and PEG-containing baths. However, PEG made it possible to reduce Cr³⁺ to metallic state and Cr existed in the form of Cr³⁺ hydroxide in the deposits obtained in PEG-free bath.<br>(2) Partial polarization curves of Zn shifted when PEG was added to the baths.<br>(3) The pH in the cathode layer was found to rise from bulk pH 2.0 to about 4. Zn and Cr hydroxides seemed to form simultaneously in the cathode layer.<br>(4) It was estimated that alloys were electrodeposited from the composite Zn and Cr oxides formed due to the pH rise in the cathode layer and that the PEG acted as a polarizer to shift the cathode potential toward the reduction potential of Cr.

収録刊行物

• 表面技術

  表面技術 47 (10), 868-872, 1996

  一般社団法人 表面技術協会

キーワード

• Electrodeposition
• Zinc-chromium Alloy
• Polyethylene Glycol
• Hydrolysis

詳細情報

• CRID: 1390282679090511744
• NII論文ID: 10002257322
• NII書誌ID: AN1005202X
• DOI: 10.4139/sfj.47.868
• COI: 1:CAS:528:DyaK28XmsVemtL8%3D
• ISSN: 18843409
• ISSN: 09151869
• ISSN: http://id.crossref.org/issn/09151869
• NDL書誌ID: 4057357
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4057357
• 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