Mechanism of nickel-phosphorus-aluminum oxide composite coatings by electroless process

被引：0
作者：
Hamid, ZA
El-Adly, RA
机构：
[1] Cent Met R&D Inst, Cairo, Egypt
[2] Egyptian Petr Res Inst, Cairo, Egypt
来源：
PLATING AND SURFACE FINISHING | 1999年 / 86卷 / 05期
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D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Electroless nickel-phosphorus composite coatings incorporating aluminum oxide were obtained from an acidic bath. Sodium benzene sulfonate was added as stabilizer and chelating agent. Codeposition of aluminum oxide particles in a composite depends on the concentration of both Al2O3 and reducing agent, as well as on pH and temperature. Microhardness and wear resistance of the composite were investigated. The mechanism of incorporation of Al2O3 and other ions was suggested and confirmed in view of the calculated free energy of adsorption of Al2O3 and the activation energy of the composite.
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页码：136 / 139
页数：4
相关论文
共 13 条
  • [1] ELECTROCODEPOSITION AND CHARACTERIZATION OF NICKEL-TITANIUM CARBIDE COMPOSITES
    BAPU, GNKR
    [J]. SURFACE & COATINGS TECHNOLOGY, 1994, 67 (1-2) : 105 - 110
  • [2] BERKH O, 1995, PLAT SURF FINISH, V82, P72
  • [3] BERKH O, 1995, PLAT SURF FINISH, V82, P54
  • [4] BONINO JP, 1992, PLAT SURF FINISH, V79, P62
  • [5] FELDSTEIN N, 1980, PRODUCTS FINISH, V33, P65
  • [6] Hintermann H. E., 1967, PLATING, V54, P523
  • [7] LIN KL, 1989, PLAT SURF FINISH, V76, P48
  • [8] ELECTRODEPOSITED CHROMIUM-GRAPHITE COMPOSITE COATINGS
    NARAYAN, R
    NARAYANA, BH
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1981, 128 (08) : 1704 - 1708
  • [9] ONODA M, 1989, HYOMEN GIJUTSU, V40, P112
  • [10] PARFITT GP, 1983, ADSORPTION SOLUTION, P256
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