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Cordierite aluminum magnesium titanate compositions and ceramic articles comprising same

  • US 8,956,436 B2
  • Filed: 11/14/2012
  • Issued: 02/17/2015
  • Est. Priority Date: 06/30/2006
  • Status: Active Grant
First Claim
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1. A ceramic article comprising a first crystalline phase comprised predominantly of a solid solution of aluminum titanate and magnesium dititanate and a second crystalline phase comprising cordierite, the article having a composition, as expressed in weight percent on an oxide basis of from 4 to 10% MgO;

  • from 40 to 55% Al2O3;

    from 25 to 44% TiO2;

    from 5 to 25% SiO2, and a sintering aid, the sintering aid comprising at least one of a lanthanide oxide and yttrium oxide.

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