Ceramic substrate alloy

Details Ceramic substrate alloy Ceramic substrate alloy

1978-11-08

1980-05-06

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75165, 75172G, C22C 502

Patent

active

042015774

ABSTRACT:
An alloy composition enabling the amount of silver therein to be limited significantly or preferably eliminated altogether while maintaining the castability, strength properties and physical properties including melting range and coefficient of thermal expansion compatible with available porcelain products. The alloy composition contains, by weight, silver 0-11.0%, aluminum 0-1%, gold 31.8-63.16%, boron 0-0.13%, calcium 0-0.12%, copper 0-5.0%, iron 0-0.75%, gallium 0-5.0%, indium 0.5-10.55%, lithium 0-0.04%, nickel 0-2%, palladium 28.96-57.97%, rhenium 0-0.25%, ruthenium 0-1.8%, silicon 0-0.0125%, tin 0-7.5%, titanium 0-0.06%, vanadium 0-0.12% and zinc 0-1.98%.

REFERENCES:
patent: 2143217 (1939-01-01), Truthe
patent: 3374123 (1968-03-01), Masumoto et al.
patent: 3667936 (1972-06-01), Katz
patent: 3716356 (1973-02-01), Burnett
patent: 3981723 (1976-09-01), Tuccillo
patent: 4123262 (1978-10-01), Cascone
Nielsen et al. Journal of Dental Research, vol. 45, No. 3, Part 2, pp. 964-969, May-Jun., 1966.

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