Composite body with beta-alumina substrate and glass-coating the

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428137, 428432, 428433, 429185, B32B 324, B32B 1706

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041328205

ABSTRACT:
A composite body has a beta-alumina substrate with at least one aperture therethrough, and a glass coating covering and adhering to the entire external surface of the substrate. The glass coating has sodium resistance, low alkali ion-conductance, and a coefficient of thermal expansion of 7.3 to 6.1 .times. 10.sup.-6 inches/inch/.degree. C.

REFERENCES:
patent: 3281309 (1966-10-01), Ross
patent: 3826629 (1974-07-01), Pryor et al.
patent: 3960596 (1976-06-01), Mitoff et al.
"Technical Glasses", M. B. Volf, 1961, Sir Isaac Pitman and Sons Ltd. London, England, pp. 399-400.
"The Influence of Chemical Properties of Glazes", by F. P. Hall, Journal of the American Ceramic Society, vol. 13, 1930, pp. 182-199.

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