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

1974-11-04

1976-05-04

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

106 62, B01J 2906, C04B 3504

Patent

active

039546721

ABSTRACT:
Cordierite refractory compositions made from a mixture of talc, clay, calcined kyanite, alumina and water, the composition 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 Na.sub.2 O and K.sub.2 O 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.

REFERENCES:
patent: 2731355 (1956-01-01), Skinner
patent: 2864919 (1958-12-01), Stringfellow
patent: 3824196 (1974-07-01), Benbow et al.
patent: 3885977 (1975-05-01), Lachman et al.

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