Method for producing low expansion ceramics

Details Method for producing low expansion ceramics Method for producing low expansion ceramics

1976-12-15

1979-03-06

Bashore, S. Leon

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 33, 106 396, 106 52, C03B 2320, C03B 3200

Patent

active

041428790

ABSTRACT:
Low thermal expansion ceramics of essentially 100 percent cordierite solid solution are prepared by the devitrification of a glass frit compact having the nominal composition in weight percent 16 percent MgO, 30 percent Al.sub.2 O.sub.3, 54 percent SiO.sub.2. These ceramics exhibit adequate density and strength and are useful for example in the fabrication of gas turbine engine components such as rotor vanes and heat exchangers.

REFERENCES:
patent: 3365314 (1968-01-01), Sack
patent: 3450546 (1969-06-01), Stong
patent: 3480452 (1969-11-01), Fleischner
patent: 3490888 (1970-01-01), Strong
patent: 3531307 (1970-09-01), Rubin et al.
patent: 3940255 (1976-02-01), Harrington et al.
patent: 3979216 (1976-09-01), Fritsch, Jr. et al.
patent: 4015048 (1977-03-01), Martin
patent: 4042403 (1977-08-01), Reade
"Low Expansion Ceramic Material For Catalyst Supports" by J. L. Pentacost, and J. K. Cochren.
"Development Of A Low Thermal Expansion Magnesium Aluminum Silicate Ceramic For Gas Turbine Heat Exchanger Applications" by S. T. Buljan, and R .M. Kleiner -- Gas Div. of the Amer. Soc. Mech. Engineers Meeting -- Houston, Tex. Mar. 2-6, 1975.

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