Low thermal expansion ceramic composition

Details Low thermal expansion ceramic composition Low thermal expansion ceramic composition

1976-10-28

1978-11-14

McCarthy, Helen

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 63, 106 69, 106 734, C04B 3504

Patent

active

041254082

ABSTRACT:
A ceramic composition composed of a hydrothermal, high magnesium, plastic clay combined with suitable sources of MgO, SiO.sub.2, and Al.sub.2 O.sub.3 to result in a composition, the fired product of which results in a cordierite ceramic having low coefficient of thermal expansion characteristics that permit the use of said ceramic in flameware cooking utensils. For a similar cordierite like composition the mineral tremolite can be included in the composition to enhance moist workability and drying and firing dimension stability.

REFERENCES:
patent: 2731355 (1956-01-01), Skinner
patent: 3360594 (1967-12-01), Criss
patent: 3427174 (1969-02-01), Miller
patent: 3499787 (1970-03-01), Inoue
patent: 4001028 (1977-01-01), Frost et al.
patent: 4063955 (1977-12-01), Fritsch et al.
Mason, B. - "Principles of Geochemistry" - 3rd. ed. (1966), John Wiley & Sons, N. Y., pp. 156-161, 252-253.
Searle, A. B. - "Refractory Materials" - 3rd ed. (1950), Chas. Griffin & Co., London, pp. 187-188.

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