Process for densification of powdered ceramics and cermets at te

Details Process for densification of powdered ceramics and cermets at te Process for densification of powdered ceramics and cermets at te

1991-12-04

1994-12-20

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Heat and pressure simultaneously to effect sintering

419 48, B22F 314

Patent

active

053743920

ABSTRACT:
Densify powdered materials, either ceramic or metal or both, at temperatures of 1400.degree. C. or higher using a fluid die fabricated from a mixture of alumina and a calcium aluminate cement. The fluid die may be separated from a fluid pressure-transmitting medium by a barrier material such as graphite foil.

REFERENCES:
patent: 3253936 (1966-05-01), Weindel
patent: 3356496 (1967-12-01), Halley
patent: 3507332 (1970-04-01), Venable, Jr. et al.
patent: 3607325 (1971-09-01), Spangler et al.
patent: 3700435 (1972-10-01), Chandhok
patent: 3748158 (1973-07-01), Braniski et al.
patent: 3963508 (1976-06-01), Masaryk
patent: 4428906 (1984-01-01), Rozmus
patent: 5269845 (1993-12-01), Grunau et al.

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