Non-precious dental alloy of Co-Ni-Cr containing Si and B

Details Non-precious dental alloy of Co-Ni-Cr containing Si and B Non-precious dental alloy of Co-Ni-Cr containing Si and B

1978-06-29

1979-11-27

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75171, 433207, C22C 3000, C22C 1905

Patent

active

041759532

ABSTRACT:
A dental alloy is described which is comprised of from 13 to 25% Cr, 20 to 40% Ni, 3 to 7.5% Mo, 0.2 to 1.0% B, 2.75 to 5.0% Si, less than 5% Mn and from 30 to 60 Co. This alloy is especially useful as a substitute for the precious metal alloys used to fabricate dental prosthetic appliances.

REFERENCES:
patent: 2155047 (1939-04-01), Grossman
patent: 2936229 (1960-05-01), Shepard
patent: 3437480 (1969-04-01), Cape
patent: 3914867 (1975-10-01), Manning et al.
patent: 4038074 (1977-07-01), Davitz
patent: 4038752 (1977-08-01), Phelps et al.
patent: 4108642 (1978-08-01), Chiaramonte
T. Sims et al., "Superalloys", Wiley, N.Y., 1972, pp. 577 and 579 (FIG. 1).

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