Dental alloy

Details Dental alloy Dental alloy

C - Chemistry, Metallurgy

22

C

75/114

C22C 19/03 (2006.01) A61K 6/04 (2006.01) C22C 19/05 (2006.01)

Patent

CA 1052598

Abstract of the Disclosure A dental alloy is provided for use in the preparation of bridges, crowns and the like; the dental alloys are much less costly than gold but are equal or better than gold in dental applications, the alloy consists essentially of, on a percent by weight basis, 100 to 90% nickel, chromium and silicon in amounts of 65 to 75% nickel, 15 to 23.5% chromium, and 3.5 to 6.0% silicon in the absence of beryllium and 1.5 to 6.0% silicon in the presence of beryllium, 0 to 1.5% beryllium, 0 to 5.0% molybdenum, 0 to 2.0% boron and 0 to 1.0% manganese, the alloy has a fusion temperature within the range of 2250° to 2350°F., has a tensile strength of at least 90,000 p.s.i., and has the ability to bond well to dental porcelains.

204014

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