Electro-plating of an alumina particle/nickel composite system was carried out on an aluminum alloy substrate. An electrolyte jet was applied to improve the deposition rate and also to realize a required volume fraction of alumina particles. The turbulent jet increases remarkably the limiting current density, becoming larger as the jet velocity increases, regardless of the alumina concentration in the electrolyte and the average particle diameter. It is saturated with approximately 12000 A/m2 at a jet velocity of 4 m/s. This density is 15 times larger than in conventional plating. Alumina particles are dispersed uniformly in the deposit. The volume fraction of the particles increases up to 30 vol%. It decreases as the jet velocity increases. It shows a maximum value at a particle diameter of 1.7 um among particles 2.8, 1.7 and 0.6 um in diameter. The resultant deposition rate of alumina particle/ nickel composite plating with the electrolyte jet is approximately 15 times faster than that of conventional electro-plating.


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    Title :

    Application of electrolyte jet to Al2O3 particle/Ni composite electro-plating


    Additional title:

    Verwendung eines Elektrolytjets zur galvanischen Beschichtung einer Aluminiumlegierung mit einem Verbundstoff aus Al2O3-Partikeln und Ni
    Titel japanisch


    Contributors:

    Published in:

    Publication date :

    1995


    Size :

    6 Seiten, 10 Bilder, 1 Tabelle, 14 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    Japanese




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