Ceramic material

Details Ceramic material Ceramic material

C - Chemistry, Metallurgy

04

B

261/38

C04B 35/10 (2006.01) B01D 39/20 (2006.01) C04B 35/14 (2006.01) C04B 35/80 (2006.01) C04B 38/06 (2006.01)

Patent

CA 2022186

FS 1403 ABSTRACT CERAMIC MATERIAL The invention relates to composite ceramic materials strengthened by the incorporation of ceramic fibres and to a method of making such materials. A novel composite ceramic material comprises an alumina matrix (11) containing mullite formations (12) formed from a colloidal silica filler and alumina fibres (10), part at least of the mullite growth (12) being on the surface of the fibres (10). The composite ceramic material is made by forming an aqueous slurry containing a dispersion of the fibres, filler, colloidal silica and rheological agents, forming the slurry to the desired shape and firing the product. The ceramic matrix material is particularly suitable for the manufacture of ceramic foam filters.

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