Patent ID: 8530029

Claim:
A porous fully microcracked cordierite ceramic substrate body, comprising: a total porosity (% P) of from about 40 to about 55%; a median pore size (d 50 ) of from about 3 microns to about 8 microns, the pore size distribution being characterized by a d f value less than about 0.4; a thermal mass of less than about 0.28 g/cc; a thermal shock parameter (TSP) of at least about 1,000° C.; a CTE 25-800° C. value of from about 0.5 to about 3×10 −7 /C.; and a modulus of rupture strength (MOR) of greater than about 1.10 MegaPascal, wherein the body is a honeycomb having a plurality of cell channels separated by porous cell channel walls having a wall thickness less than or equal to about 100 microns.