Ceramic body based on aluminum titanate and including a...

Details Ceramic body based on aluminum titanate and including a... Ceramic body based on aluminum titanate and including a...

2006-07-04

2006-07-04

Group, Karl (Department: 1755)

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

C501S032000, C422S177000, C055S523000, C264S630000

Reexamination Certificate

active

07071135

ABSTRACT:
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 inventive ceramic body may include a second crystal phase, for example mullite in an amount of up to 40% by weight. The glass is an aluminosilicate including, in weight percent on an oxide basis, of 50–90 SiO2, 1–25 Al2O3, 0.5–10 TiO2, 0.5–20 R2O, 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, and wherein the ceramic body includes not more than 2% by weight Fe2O3.

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patent: 5422324 (1995-06-01), Noguchi et al.
patent: 2003/0181310 (2003-09-01), Yamamoto et al.
patent: 2004/0092381 (2004-05-01), Beall et al.

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