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ANALYSIS ON THE PRODUCTION PROCESS AND THE ELECTROREDUCTION PROCESS OF THE DOUBLE METAL HYDROXIDE AS A PRECURSOR OF ALLOY PLATING

Research Project

Project/Area Number 09650790
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Material processing/treatments
Research InstitutionOKAYAMA UNIVERSITY

Principal Investigator

HAYASHI Hidetaka  OKAYAMA UNIVERSITY,FACULTY OF ENGINEERING,LECTURER, 工学部, 講師 (90164954)

Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 1998: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1997: ¥2,700,000 (Direct Cost: ¥2,700,000)
Keywordscoprecipitates / potentiometric titration / alloy plating / 共沈
Research Abstract

In the electrodeposition of Zn-Ni alloy from sulfate bath, less noble Zn preferentially deposits compared to noble Ni. This behavior is classified as "anomalous codeposition". It has been considered that the anomalous codeposition of Zn-Ni is due to the preferential precipitation of zinc hydroxide on the cathode and the inhibition of nickel deposition according to the hydrogen production at the cathode and the pH increase. However, in the case that both Zn^<2+> and Ni^<2+> coexist in the solution, not the zinc hydroxide but the double hydroxide of both metal precipitates. In this paper, the role of the double hydroxide from the plating bath containing Zn^<2+> and Ni^<2+> has been clarified. The double hydroxide production process and the electroreduction of the hydroxide were investigated

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] H.Hayashi, T.Matsunaga I.Tari: "Codeposition of Titanium Dioxide Particles from Acid Copper and Zinc Sulfate Baths" DENKI KAGAKU. 66・8. 844-850 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 田里伊佐雄, 林 秀考, 浮田茂幸: "界面活性剤によるPTFE粒子表面改質のCu-PTFE分散めっきに及ぼす効果" 表面技術. 50・1. 78-83 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 林 秀考, 中村邦昭, 田里伊佐雄: "ワット浴からのニッケル-αアルミナ粒子の共析" 電気化学. 67・4. 344-348 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 田里伊佐雄, 鈴木貴志, 松永貴裕, 林 秀考: "分散めっきにおける硫酸バリウムの共析現象" 電気化学. 67・4. 340-343 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Hayashi, T.Matsunaga, I.Tari: ""Codeposition of titanium dioxide particles from acid copper and zinc sulfate baths"" DENKI KAGAKU. Vol.66, No.8. 844-850 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] I.Tari, H,Hayashi, S.Ukita: ""Effect of PTFE surface modification by surfactant on Cu-PTFE composite plating"" The Journal of the Surface Finishing Society of Japan. Vol.50, No.1. 78-83 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] I.Tari, T.Suzuki, T.Matsunaga, H.Hayashi: ""Codeposition behavior of barium sulfate particles from various plating bath"" Electrochemistry. Vol.67, No.4. 340-343 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Hayashi, K.Nakamura, I.Tari: ""Codeposition of nickel and alpha-alumina particle from Watts type bath"" Electrochemistry. Vol.67, No.4. 344-348 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Hayashi,T.Matsunaga,I.Tari: "Codeposition of Titanium Dioxide Particles from Acid Copper and Zinc Sulfate Baths" DENKI KAGAKU. 66. 844-850 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 田里伊佐雄 林 秀考 浮田茂幸: "界面活性剤によるPTFE粒子表面改質のCu-PTFE分散めっきに及ぼす効果" 表面技術. 1. 78-83 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 林 秀考 中村邦昭 田里伊佐雄: "ワット浴からのニッケル-αアルミナ粒子の共析" 電気化学. 4(印刷中). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 田里伊佐雄 鈴木貴志 松永貴裕 林 秀考: "分散めっきにおける硫酸バリウムの共析現象" 電気化学. 4(印刷中). (1999)

    • Related Report
      1998 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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