High temperature low thermal expansion ceramic

Details High temperature low thermal expansion ceramic High temperature low thermal expansion ceramic

C - Chemistry, Metallurgy

04

B

261/26

C04B 35/10 (2006.01) C04B 35/18 (2006.01) C04B 35/46 (2006.01) C04B 35/478 (2006.01)

Patent

CA 1321214

ABSTRACT This invention relates to the high temperature stabi- lization of aluminum titanate and aluminum titanate-mullite compositions by the addition of iron oxide. It has been found that iron oxide concentrations greater than 5 weight percent and as high as approximately 25 weight percent have a stabilization effect at high temperatures on aluminum titanates. The resultant ceramic body is further enhanced by the addition of from .1 to 5 weight percent rare earth oxide.

584337

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