Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1974-08-20
1976-06-15
Rutledge, L. Dewayne
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75169, C22C 508
Patent
active
039634841
ABSTRACT:
A two-component amalgam alloy system comprises as a first component a standard silver-tin amalgam alloy, and as a second component a copper base alloy. The two components are intermixed and amalgamated with mercury to form a dental amalgam from which the highly corrodible tin-mercury (gamma-2) phase has been removed and the readily tarnishable and inter-granular fracturable (brittle) silver-mercury (gamma-1) phase can be reduced.
REFERENCES:
patent: 1963085 (1934-06-01), Gray
patent: 2281991 (1942-05-01), Poetschke
patent: 3305356 (1967-02-01), Youdelis
patent: 3841860 (1974-10-01), Wolf
Rutledge L. Dewayne
Weise E. L.
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