PROCESS FOR THE ELECTROPHORETIC DEPOSITION OF BARRIER COATINGS ON PRECIOUS METALS

摘要

Objects formed from precious metal are subject to costly weight-loss when they are subjected to lengthly periods at high temperature. Such weight loss can be minimized by the electrophoretic deposition of a thin, uniform layer of ceramic, such as alumina, onto the precious metal. Particular advantage is derived by using such coated precious metal in bushings for the manufacture of fiberglass.