Patent ID: 8501296

Claim:
A sintered porous ceramic honeycomb body, comprising: a primary cordierite ceramic phase; a total porosity % P of at least 40%; and a thermal shock parameter (TSP) of at least 450° C., wherein TSP is (MOR 25° C. /E 25° C. )(CTE 500-900° C. ) −1 , MOR 25° C. is the modulus of rupture strength at 25° C., E 25° C. is the Young's elastic modulus at 25° C., and CTE 500-900° C. is the high temperature thermal expansion coefficient at 500° C. to 900° C., all as measured in the axial direction of the honeycomb; wherein after exposure to a temperature of 1050° C. for 100 hours, the honeycomb body exhibits at least one of: an elastic modulus ratio E ratio ≦0.99, and a microcrack parameter Nb 3 ≦0.07 wherein E ratio =E 900° C. /E 25° C. where E 900° C. is the elastic modulus at 900° C. measured during heating, and wherein the primary cordierite ceramic phase comprises cordierite crystals having a substantially preferred crystal orientation having a Δ I greater than 0.10 where Δ I =(I T )−(I A ).