Silicon nitride sintered product

Details Silicon nitride sintered product Silicon nitride sintered product

1988-08-31

1989-11-14

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

C04B 3558

Patent

active

048807567

ABSTRACT:
A silicon nitride sintered product comprises, in % by weight, 1 to 10% Mg, calculated as MgO, 1 to 10% Zr, calculated as ZrO.sub.2, 0.1 to 2.0% of at least one of Al, calculated as Al.sub.2 O.sub.3, Li, calculated as Li.sub.2 O, and Na, calculated as Na.sub.2 O, and the remainder being Si.sub.3 N.sub.4 and unavoidable impurities.

REFERENCES:
patent: 4449989 (1984-05-01), Sarin et al.
patent: 4764490 (1988-08-01), Yamakawa et al.
patent: 4777822 (1988-10-01), Uemura et al.

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