Gold colored palladium-indium alloys

Details Gold colored palladium-indium alloys Gold colored palladium-indium alloys

C - Chemistry, Metallurgy

22

C

75/14

C22C 5/04 (2006.01) C22C 30/00 (2006.01)

Patent

CA 1281212

Abstract An alloy composition for use in dental andtor jewelry applications consisting essentially of palladium 0.9-58.0%, indium 5.0-42.0%, silver 0-46.0%, gold 0-30.0%, copper 0-40.0%, niobium about 0-7.0%, platinum about 0-4.5%, zinc about 0-4.0%, tungsten about 0-3.0%,-tin 0-2.0%, germanium about 0-1.0%, tantalum about 0-1.0%, silicon about 0-0.75%, phosphorus about 0-0.75%, titanium about 0-0.5%, iridium about 0-0.5%, rhenium about 0-0.5%, ruthenium about 0-0.5%, boron about 0-0.1%, lithium about 0-0.025% and mixtures thereof. This alloy exhibits a pale yellow to yellow color which it derives from the interaction of two white colored metals - palladium and indium. Various alloying additions are specified to improve castability, ductility, strength, hardness, tarnish and corrosion resistance.

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