Method of coating an aluminum compound substrate with a composition of elemental titanium and an alkali metal halide, melting the coating, and rinsing the coated substrate

摘要

An adherent layer comprising elemental titanium, optionally in combination with another metal such as copper, is deposited on a substrate, preferably of alumina or aluminum nitride, and serves as a base for a further conductive coating which may be applied by electroless or electrolytic deposition. The adherent layer is applied by contacting the substrate with a mixture of the elemental metal(s) and a substantially anhydrous salt composition, preferably an equimolar mixture of potassium chloride and sodium chloride; heating at a temperature and for a time sufficient to melt said salt composition; and removing said salt composition, preferably by water washing.