Ceramic body based on aluminum titanate

Details Ceramic body based on aluminum titanate Ceramic body based on aluminum titanate

2005-09-13

2005-09-13

Smith, Duane (Department: 1724)

Gas separation

Specific media material

Ceramic or sintered

C055S385300, C055SDIG003, C501S005000, C501S008000, C501S080000, C501S128000, C501S134000, C501S136000, C501S137000, C264S044000, C264S628000, C264S630000, C264S638000, C264SDIG004

Reexamination Certificate

active

06942713

ABSTRACT:
An aluminum titanate-based ceramic body having a composition a formula comprising a(Al2O3.TiO2)+b(CaO.Al2O3.2SiO2)+c(SrO.Al2O3.2SiO2)+d(BaO.Al2O3.2SiO2)+e(3Al2O3.2SiO2)+f(Al2O3)+g (SiO2)+h(Fe2O3.TiO2)+i(MgO.2TiO2), wherein a, b, c, d, e, f, g, h, and i are weight fractions of each component such that (a+b+c+d+e+f+g+h+i)=1, wherein 0.5<a≦0.95; 0≦b≦0.5; 0≦c≦0.5; 0≦d≦0.5; 0<e≦0.5; 0≦f≦0.5; 0≦g≦0.1; 0≦h≦0.3; 0≦i≦0.3; b+d>0.01. A method of forming the ceramic body is provided. The ceramic body is useful in automotive emissions control systems, such as diesel exhaust filtration.

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