Silicon nitride sintered body

Details Silicon nitride sintered body Silicon nitride sintered body

1986-03-20

1988-05-24

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501 98, C04B 3558

Patent

active

047466367

ABSTRACT:
Disclosed is a sintered body of a composition comprising (i) 80 to 99% by weight of Si.sub.3 N.sub.4, (ii) 1 to 20% by weight of oxides, nitrides and the like of Sr, W and a rare earth element as the main additive and (iii) an oxide, a nitride or the like of Al, Ti, Cr, Si or Mo as the auxiliary additive in an amount of up to 5 parts by weight per 100 parts by weight of the components (i) and (ii). This sintered body is excellent in oxidation resistance and mechanical strength at high temperatures.

REFERENCES:
patent: 4535063 (1985-08-01), Matsuhiro et al.
patent: 4609633 (1986-09-01), Fukuhara et al.

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