Cordierite refractory compositions and method of forming same

Details Cordierite refractory compositions and method of forming same Cordierite refractory compositions and method of forming same

C - Chemistry, Metallurgy

04

B

261/33

C04B 35/64 (2006.01) B01J 21/16 (2006.01) C04B 35/195 (2006.01)

Patent

CA 1063625

CORDIERITE REPRACTORY COMPOSITIONS AND METHOD OF FORMING SAME Abstract of the Disclosure: Cordierite refractory compositions made from a mixture of talc, clay, calcined kyanite, alumina and water, the com- position being such as to result on firing in a body having cordierite as the major crystalline phase and mullite as the minor crystalline phase and wherein the amount of Na2O and K2O is not in excess of about 0.14% by weight of the batch dry materials, such compositions being suitable for making a catalyst substrate or support in the form of an extruded multi-tubular refractory body as well as other ceramic bodies such as turbine engine components, heat exchanger cores and furnace ware which have a requirement for high resistance to heat shock and low thermal expansion characteristics.

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