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US 5,629,186 AGranted
Porous matrix and method of its production
AssigneeLockheed Martin Corporation
InventorsRobert D. Yasukawa, Loretta J. Cordrey
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Abstract
Low density fused fibrous ceramic composites are prepared from amorphous silica and/or alumina fibers with 2 to 12% boron nitride by weight of fibers, used as a fluxing agent to reduce the melting temperature of the fibers and allow the fibers to fuse at their intersections creating a three dimensional rigid matrix. The matrix is useful as a cell-culture substrate, as an implant material, and for chromatographic separation of blood cells.
Claims10
A porous matrix composed of fused fibers of silica, alumina, or silica and alumina and characterized by:
- (a) a rigid, three-dimensionally continuous network of open, intercommunicating voids formed randomly in all directions,
- (b) a density of between about 3.5 and 5.5 pounds/ft3;
- and
- (c) a volume occupied by the matrix fibers of between about 2-10 volume percent.
1 more element
Dependencies are inferred from the claim text.