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AssigneeCorning Incorporated
InventorsMonika Backhaus-Ricoult, Christopher Raymond Glose, James William Zimmermann
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A porous ceramic material is disclosed having a principal cordierite phase, the porous ceramic material exhibiting a normalized strength greater than 20 MPa. The cordierite phase has a reticular microstructure. A method for forming a porous ceramic body having a predominant phase of cordierite is provided which includes forming a body from a plasticized mixture of inorganic ceramic-forming ingredients that include a magnesia source, a silica source, and an alumina source, the alumina source including alumina-containing elongated particles, wherein at least 90 wt % of the alumina-containing elongated particles have a length of 50 to 150 μm, and then firing the body.
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 (TWALL) in units of the length measure, wherein relCFA is the relative closed frontal area defined herein as:
Dependencies are inferred from the claim text.