硫酸酸性浴による亜鉛-ニッケル合金めっきの均一電着性に及ぼすシリカナノ粒子共析の影響  [in Japanese] Effects of Silica Nanoparticle Co-deposition on Macrothrowing Power of Zinc-Nickel Alloy Plating from an Acid Sulfate Bath  [in Japanese]

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Author(s)

Abstract

  Zinc-nickel-SiO<sub>2</sub> electrodeposits have been produced from an acid sulphate bath. The co-deposition behavior of SiO<sub>2</sub> and the macrothrowing power of platings were examined. The presence of SiO<sub>2</sub> nanoparticles in the plating bath appears to change the alloy deposition behavior. The rate of nickel deposition was considerably decreased with SiO<sub>2</sub> nanoparticles in the bath. The macrothrowing power of plating was improved by adding the SiO<sub>2</sub> nanoparticles in the bath. At an early stage of electrodeposition, it seems that the SiO<sub>2</sub> nanoparticle acts as a nucleus of the precipitation. The SiO<sub>2</sub> nanoparticles did not disperse uniformly in a plating film, but distributed only in the SiO<sub>2</sub> rich layer with about 50 nm in thickness formed beneath the surface. In addition, this SiO<sub>2</sub> rich layer can improve the anticorrosive performance. Therefore, the zincic use can be suppressed, because the film thickness can be more thinned, compared with zinc and zinc-nickel alloy electroplating.<br>

Journal

  • Journal of the Japan Institute of Metals and Materials

    Journal of the Japan Institute of Metals and Materials 78(1), 31-36, 2014

    The Japan Institute of Metals and Materials

Codes

  • NII Article ID (NAID)
    130004786452
  • NII NACSIS-CAT ID (NCID)
    AN00062446
  • Text Lang
    JPN
  • ISSN
    0021-4876
  • NDL Article ID
    025132691
  • NDL Call No.
    Z17-314
  • Data Source
    NDL  J-STAGE 
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