	US 11,891,339 B2
	Cordierite-indialite-pseudobrookite structured ceramic bodies, batch composition mixtures, and methods of manufacturing ceramic bodies therefrom
Huthavahana Kuchibhotla Sarma, San Jose, CA (US); and Cameron Wayne Tanner, Horseheads, NY (US)
Assigned to Corning Incorporated, Corning, NY (US)
Appl. No. 17/271,988
Filed by CORNING INCORPORATED, Corning, NY (US)
PCT Filed Aug. 29, 2019, PCT No. PCT/US2019/048803 § 371(c)(1), (2) Date Feb. 26, 2021, PCT Pub. No. WO2020/047249, PCT Pub. Date Mar. 5, 2020.
Claims priority of provisional application 62/725,591, filed on Aug. 31, 2018.
Prior Publication US 2021/0323872 A1, Oct. 21, 2021
Int. Cl. C04B 35/195 (2006.01); C04B 38/06 (2006.01); C04B 38/00 (2006.01)

CPC C04B 35/195 (2013.01) [C04B 38/0012 (2013.01); C04B 38/068 (2013.01); C04B 2235/3232 (2013.01); C04B 2235/3481 (2013.01); C04B 2235/9607 (2013.01)]

20 Claims

1. A ceramic body, comprising:

% P≥50%, wherein % P is average bulk porosity by volume;

df≤0.36, wherein df is (d₅₀-d₁₀)/d₅₀;

a combined weight percentage of crystalline phases containing cordierite and indialite of at least 85 wt %;

up to 10 wt % of a crystalline phase comprising a pseudobrookite structure,

wherein the ceramic body contains, as expressed in weight percent on an oxide basis, either:

1% wt % to 11% wt % titania and 89% wt % to 99% wt % MgO, Al₂O₃, and SiO₂that have relative weight ratios of MgO:Al₂O₃:SiO₂within 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, or

2.5% to 11% titania and 89% wt % to 97.5% wt % MgO, Al₂O₃, and SiO2 that have relative weight ratios of MgO:Al₂O₃:SiO₂within the field defined by 15.6:34.0:50.4, 12.6:34.0:53.4, 12.0:35.7:52.3, and 15.0:35.7:49.3.