Patent ID: 6582796
Filing Date: 2003-06-24
Classification: C04B,F01N,Y02T,Y10T

Abstract:
A monolithic honeycomb-type structure made of porous ceramic, whose outside shape is delimited by a cylindrical surface that rests on two end faces of any shape, whereby said structure comprises a number of parallel passages that are separated from one another by porous walls, said porous ceramic comprising:70 to 97% by mass of &agr; and/or &bgr; crystallographic-type silicon carbide that has at least one particle size; and 3 to 30% by mass of at least one bonding ceramic phase in the form of a micronic powder and/or particles that are obtained by atomization, comprising at least one of (A) at least one simple oxide selected from the group consisting of, B2O3, Al2O3, SiO2, MgO, K2O, Li2O, Na2O, CaO, BaO, TiO2, ZrO2 and Fe2O3 and (B) at least one mixed oxide selected from the group consisting of, alkaline aluminosilicates, alkaline-earth aluminosilicates, clays, bentonite, and feldspars.