GOLD-BASE ALLOYS FOR STOMOTOLOGY Russian patent published in 2001 - IPC

FIELD: metallurgy, more particularly noble metal-base alloys, structural material for dentures. SUBSTANCE: gold-base alloy comprises, wt %: gold, 85-86; platinum 9- 10; palladium, 4-5; copper, 0.5-1 and tin, 0.5-1, total platinum to palladium ratio being 13-14 wt % and copper to tin ratio being 1: 1. Alloy further comprises one or more metals from group consisting of rhodium, rhutenium, zirconium and zinc in amount not higher than 0.3 wt %. EFFECT: greater hardness, improved adhesion properties and optimal к.т.p values which makes it possible to use wide range of both imported and domestic ceramic coatings. 2 cl, 1 tbl