Al.sub.2 O.sub.3 /B.sub.4 C/SiC composite

Details Al.sub.2 O.sub.3 /B.sub.4 C/SiC composite Al.sub.2 O.sub.3 /B.sub.4 C/SiC composite

1991-03-21

1992-11-17

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 89, 501 90, 501127, 501128, 423345, 423439, C04B 3556

Patent

active

051643456

ABSTRACT:
The processes of the invention involve the formation of an initial reactant mixture by combining sources of SiO.sub.2, B.sub.2 O.sub.3, aluminum, and carbon. The mixture may then optionally be shaped or compacted. The reactant mixture is then heated to start a reaction which is described by the formula:

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patent: 4814127 (1989-03-01), Toyoda
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patent: 4891341 (1990-01-01), Cutler et al.
patent: 4919991 (1990-04-01), Gadkaree

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