Composite nitride sintered body

Details Composite nitride sintered body Composite nitride sintered body

1985-03-13

1987-02-10

McCarthy, Helen M.

Compositions: ceramic

Ceramic compositions

Refractory

264 60, 264 66, 501 98, C04B 3558

Patent

active

046422986

ABSTRACT:
A composite nitride sintered body consisting essentially of aluminum nitride, boron nitride and at least one metal compound selected from the group consisting of compounds of metals of Groups IIa and IIIa of the periodic table.
The composite nitride sintered body is produced by intimately mixing a powder of aluminum nitride, a powder of boron nitride and at least one metal compound selected from the group consisting of metal compounds of metals of Groups IIa and IIIa of the periodic table, and sintering the mixture under atmospheric or elevated pressures at a temperature in the range of 1600.degree. to 2400.degree. C.
The sintered body has a good machinability.

REFERENCES:
patent: 3108887 (1963-10-01), Lenie et al.
patent: 3813252 (1974-05-01), Lipp
patent: 3854967 (1974-12-01), Reinmuth
patent: 4435513 (1984-03-01), Komeya et al.
patent: 4519966 (1985-05-01), Aldinger et al.
patent: 4540673 (1985-09-01), Takeda et al.
GEM-680 Aluminum Nitride-Circular of Engineered Materials of Hi-Purity Materials, Inc., NY, NY (1981).

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