Sintered Si.sub.3 N.sub.4 body

Details Sintered Si.sub.3 N.sub.4 body Sintered Si.sub.3 N.sub.4 body

1981-09-23

1983-10-25

Bell, Mark

Compositions: ceramic

Ceramic compositions

Refractory

501 98, C04B 3550, C04B 3558

Patent

active

044120095

ABSTRACT:
Disclosed is a method of producing a sintered body of ceramics, wherein a powder mixture consisting, essentially of at most 10%, exclusive of 0%, by weight of yttrium oxide, at most 10%, exclusive of 0%, by weight of aluminum oxide, at most 10%, exclusive of 0%, by weight of aluminum nitride, at most 5%, exclusive of 0%, by weight of at least one material selected from the group consisting of titanium oxide, magnesium oxide and zirconium oxide, and the balance essentially of silicon nitride is sintered under a non-oxidizing atmosphere.

REFERENCES:
patent: 3830652 (1974-08-01), Gazza
patent: 3953221 (1976-04-01), Lange
patent: 3969125 (1976-07-01), Komeya et al.
patent: 3991148 (1976-11-01), Lumby et al.
patent: 4066468 (1978-01-01), Kamigaito et al.
patent: 4113503 (1978-09-01), Lumby et al.
patent: 4127416 (1978-11-01), Lumby et al.
patent: 4143107 (1979-03-01), Ishii et al.

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