Sintered microcrystalline ceramic material

Details Sintered microcrystalline ceramic material Sintered microcrystalline ceramic material

1991-06-10

1992-04-21

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

51293, 51304, 51309, C04B 3502

Patent

active

051067919

ABSTRACT:
Sintered microcrystalline ceramic material based on .alpha.-Al.sub.2 O.sub.3 with an addition of 0.01 to 2.0 weight percent of a cerium compound, consisting of a microcrystalline matrix and 0.1 to 30 volume percent whisker-like needles, whereby said cerium compound is mainly present in the needles. The whisker-like needles give this material a special tenacity combined with good abrasive results.

REFERENCES:
patent: 4770671 (1988-09-01), Monroe et al.
patent: 4799938 (1989-01-01), Janz et al.
patent: 4838899 (1989-06-01), Bifuk
patent: 4964883 (1990-10-01), Morris et al.
patent: 5011508 (1991-04-01), Wald et al.
patent: 5053369 (1991-10-01), Winkler et al.

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