Silicon-carbide sintered abrasive grain and process for its prod

Details Silicon-carbide sintered abrasive grain and process for its prod Silicon-carbide sintered abrasive grain and process for its prod

1996-10-21

1998-05-26

Marcheschi, Michael

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 91, 501 92, 501 93, 501152, 264 65, 423345, 423440, 51307, 51309, 51293, C04B 35565, C04B 3564

Patent

active

057564094

ABSTRACT:
Abrasive grain with significantly improved toughness is obtained by pressureless sintering of .alpha.-silicon carbide powder with oxidic sinter additives, especially aluminum oxide/yttrium oxide, which is also suitable for those applications where an ordinary silicon carbide abrasive grain is too brittle.

REFERENCES:
patent: 3649310 (1972-03-01), Yates
patent: 4230497 (1980-10-01), Schwetz et al.
patent: 4354991 (1982-10-01), Suzuki et al.
patent: 4502983 (1985-03-01), Omori et al.
patent: 4569921 (1986-02-01), Omori et al.
patent: 4681861 (1987-07-01), Saito et al.
patent: 4729972 (1988-03-01), Kodama et al.
patent: 4829027 (1989-05-01), Cutler et al.
patent: 5298470 (1994-03-01), Chia et al.

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