The Deposition of Dispersion Hardened Coatings by Means of Electroless Nickel

Abstract

Embedding particles in electroless deposited metals is an economic method of producing composite coatings. For most practical applications 20–25 percent by volume silicon carbide powder is incorporated in an electroless nickel coating and clearly increases its mechanical and physical properties. The wear resistance of the heat treated composite is 15 to 20 times greater than that of heat treated electroless nickel. It is more wear resistant than hard chromium or anodized aluminium. This makes it successful in application to wear protection coatings when the others fail.