Abstract

Composite coatings made of a metal matrix and particles dispersed in it were produced by electrodeposition.The normal method used for the codeposition of fine insoluble nonmetallic or metallic particles with a metal is to keep the particles constantly in suspension in the electrolyte solution while the metal is being deposited under optimum conditions.The included insoluble particles offer interesting physical and mechanical properties to the metal basis.A considerable body of literature exists on the electrodeposition of particles including carbides, oxides, sulphides, graphite etc. with various metal matrices, and having such advantageous properties as wear resistance, lubrication, high temperature strength and creep resistance.The preparation of composite coatings and their tribological properties are discussed.

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