Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1995-10-03
1999-01-12
Speer, Timothy M.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
4283128, 4283191, 428325, 428331, 428698, 428701, 428702, 442409, 442410, 427204, 427205, 427350, 4273762, B32B 2902
Patent
active
058585230
ABSTRACT:
A porous ceramic film which is formed onto and bonded to an oxide layer provided on the surface of a porous base, the film composed of finely deposited particles comprising at least one compound including (a) at least one selected from the group consisting of Si, B and Al or the group consisting of the metals of the Groups IVa, Va and VIa and (b) at least one selected from the group consisting of C and N in which the particles are intertwined with each other and bonded to each other through the component of the oxide layer to form a three-dimensionally intertwined structure. This porous ceramic film is produced by forming the oxide layer on the base surface and then heating it to a temperature of at least of the liquid-phase formation temperature of the oxide layer in a gaseous atmosphere containing the above elements (a) and (b). The porous ceramic film has a high porosity, a good pressure resistance and a regulated pore size and is appropriate for a filter, a catalyst support, bioreactor or a structural material.
REFERENCES:
patent: 3513019 (1970-05-01), Miller et al.
Y. Kohtoku, et al. The Developments of Ceramics From Amorphous Silicon Nitride; (Cer. Mat. Compon. Engines 1986) pp. 101-108.
Mamoru et al, Patent Abstracts of Japan vol. 13, No. 326 Jul. 24, 1989 Abstract only.
Derwent Publications, Ltd., London, G.B.; 87-068636 & JP-A-62-021769.
Derwent Publications Ltd., London, G.B.; 87-039716 & JP-A-61 295299 Dec. 1986 Abstract only.
Migiwa et al, Patent Abstracts of Japan, vol. 13, No. 326 Apr. 21, 1989 Abstract only.
Kawai Chihiro
Matsuura Takahiro
Yamakawa Akira
Speer Timothy M.
Sumitomo Electric Industries Ltd.
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