Reduced temperature sintering process

Details Reduced temperature sintering process Reduced temperature sintering process

1974-10-17

1976-12-14

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75200, 75222, 75224, 148126, B22F 300

Patent

active

039973417

ABSTRACT:
Improved method of sintering a powder metal body at temperatures substantially lower than the normal sintering temperature of the metal. A body formed of powder metal particles is redox cycled by being repeatedly and alternately subjected to an oxidizing atmosphere and a reducing atmosphere. The number of redox cycles required to achieve sintering is inversely proportional to the temperature. The metal must be one which will undergo surface oxidation and reduction in the atmospheres and at the temperature used.

REFERENCES:
patent: 1919730 (1933-07-01), Koenig et al.
patent: 3266936 (1966-08-01), Krebs
patent: 3276919 (1966-10-01), Todd
patent: 3462260 (1969-08-01), Thafvelin et al.

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