Porous ceramic bodies
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorsClarence A. Andersson, Deborah P. Partlow, Bulent E. Yoldas
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Abstract
A porous body consisting of a felted fibrous skeleton covered with and bonded together by a ceramic material is provided. Also provided are methods for making such a porous body which comprise the use of ceramic polymer solutions.
Claims17
A method for making a porous body consisting of a felted fibrous skeleton covered with and bonded together by a ceramic material which comprises the steps of:
- (a) providing a first ceramic polymer solution;
- (b) blending high strength fibers with said solution to provide a mixture;
- (c) felting said mixture;
- (d) drying the resulting felt;
- and
- (e) firing the dried felt;
- wherein said ceramic polymer solution is an alcoholic solution containing an inorganic oxide network of at least one glass-forming element formed by controlled hydrolysis of an organo-metallic compound.
A method for making a porous body consisting of a felted fibrous skeleton covered with and bonded together by a ceramic material which comprises the steps of:
- (a) felting a plurality of high-strength fibers;
- (b) providing a ceramic polymer solution;
- (c) impregnating the felt resulting from step (a) with said solution;
- (d) drying the resulting impregnated felt;
- and
- (e) firing the dried felt;
- wherein said ceramic polymer solution is an alcoholic solution containing an inorganic oxide network of at least one glass-forming element formed by controlled hydrolysis of an organo-metallic compound.
Dependencies are inferred from the claim text.