Patent ID: 11891339
Assignee: CORNING INCORPORATED
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 18:
19. A ceramic body, comprising:
crystalline phases comprising cordierite and indialite with a combined weight percentage ranging between 85 wt % to 92 wt %, and a second crystalline phase of up to 10 wt % of a pseudobrookite structure comprising armalcolite,
wherein the ceramic body contains, as expressed in weight percent on an oxide basis, 1% wt % to 11% wt % titania, and 89% wt % to 99% wt % MgO, Al2O3, and SiO2 that have relative weight ratios of MgO:Al2O3:SiO2 within the field defined by 15.6:34.0:50.4, 12.6:34.0:53.4, 13.9:30.7:55.4, and 16.9:30.7:52.4;
55%≤% P≤72%;
8 μm≤d50≤20 μm, wherein d50 is a median pore size;
0.16≤df≤0.32, wherein df is (d50-d10)/d50; and
3×10−7/° C.≤CTE≤14×10−7/° C. from 25° C. to 800° C.