Ceramic fiber-reinforced composite articles and their production
AssigneeThe Carborundum Company
InventorsSai-Kwing Lau, Roger W. Ohnsorg, Salvatore J. Calandra
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Abstract
This invention is directed to substantially strain-free, shaped, sintered ceramic fabric preform segments, to the production of the sintered preform segments from novel fixtured, shaped, green ceramic fabric preforms, and to sintered ceramic fiber-reinforced composite articles prepared from the sintered preforms and characterized in that the reinforcement phase is substantially free of mechanical strain, and the fiber in the fabric can exhibit a very small bending radius.
Claims9
A fixtured, shaped, green ceramic fabric preform segment for a sintered ceramic fiber-reinforced composite article comprising in combination
- (a) green ceramic fabric;
- together with
- (b) a plurality of fixture elements, stable at temperatures exceeding the sintering temperature of the fabric, and capable of being shaped to the contour of at least a portion of the desired composite article, nested but spaced apart to sandwich the green ceramic fabric;
- whereby the shape of the fixture elements is acquired by the green ceramic fabric upon sandwiching the fabric therebetween.
Dependencies are inferred from the claim text.