Patent ID: 8148297

Claim:
A porous ceramic material comprised of a principal cordierite phase having a reticular microstructure, the porous ceramic material exhibiting a normalized strength, (MOR)(relCFA) − (1−porosity/100) −1 , greater than 20 MPa, wherein MOR is a value in units of MPa obtained from a four point flexure modulus of rupture test according to ASTM C1674-08 of a honeycomb sample having a cell density (CD) in units of cells per square units of a length measure and honeycomb matrix cell wall thickness (T WALL ) in units of the length measure, wherein relCFA is the relative closed frontal area defined herein as: relCFA=T WALL [2 L−T WALL]/L 2 , wherein L=CD −1/2 , and wherein porosity is the total porosity, in %, as measured by mercury intrusion porosimetry; the porous ceramic material having less than 1 wt % glass phase and a total porosity of greater than or equal to 45%.