Method of applying a film comprising chromium oxide on a glass surface

摘要

Films of chromium oxide are formed on glass or ceramic surfaces by heating the surface to a temperature above 800 DEG F. and spraying the heated surface with a solution of an oxygenated chromium compound of the type CrO2X2, where X is a halogen, e.g. chromyl chloride. The preferred solvent is acetic acid. The chromium compound may be mixed with a tin compound so as to produce a mixed oxide coating or a layer of chromium oxide may be deposited on a layer of tin oxide formed by a similar process from stannic chloride.