Patent ID: 7071135
Filing Date: 2006-07-04
Classification: C03C,C04B,F01N

Abstract:
1. A ceramic body comprising a crystal phase of aluminum titanate in an amount of 50 to 95% by weight, and a glass phase in an amount of 5 to 50% by weight, the glass being an aluminosilicate and having a composition consisting essentially, in weight percent on an oxide basis, of 50–90 SiO 2 , 1–25 Al 2 O 3 , 0.5–10 TiO 2 , 0.5–20 R 2 O, where R is selected from the group consisting of Li, Na, K, Ru, Cs, Fr, and 0.5–20 R′O, where R′ is selected from the group consisting of Be, Mg, Ca, Ba, Ra, wherein the ceramic body includes not more than 2% by weight Fe 2 O 3 .