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Ceramic materials for 4-way and NOx adsorber and method for making same

  • US 20080203627A1
  • Filed: 02/27/2007
  • Published: 08/28/2008
  • Est. Priority Date: 02/27/2007
  • Status: Active Grant
First Claim
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1. A ceramic article, comprising a sintered phase ceramic composition containing, as expressed on a weight percent oxide basis:


  • a(Al2TiO5)+b(ZrTiO4)+c(Y2O3)+d(YPO4)wherein a, b, c, and d are weight fractions of each component such that (a+b+c+d)=1.00, andwherein 0.5<

    a≦

    0.95;

    0≦

    b≦

    0.5, 0.0≦

    c≦

    0.10, and 0≦

    d≦

    0.5.

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