. . "If intermediate layer 25 is a metal intermediate layer, the metal is preferably selected from one or more of the group consisting of chromium, nickel, iron, aluminum, titanium, silver, gold, hafnium, zirconium, tantalum, niobium, tungsten, platinum, vanadium, molybdenum, tin, palladium, rhodium, alloys containing these metals, and other metals." . . . . . . . . . .