Crystallizable glasses and nephetine glass-ceramics containing Z

Details Crystallizable glasses and nephetine glass-ceramics containing Z Crystallizable glasses and nephetine glass-ceramics containing Z

1971-04-06

1977-05-10

McCarthy, Helen M.

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 397, 106 398, 106 52, 106 53, 65 33, C03C 322

Patent

active

040226271

ABSTRACT:
A thermally crystallizable glass consisting essentially of 45-57 SiO.sub.2, 29-38 Al.sub.2 O.sub.3, 13-22 Na.sub.2 O, in parts by weight, and the parts totalling 100. For each of these 100 parts, the glass contains 0.5-5 parts of ZrO.sub.2 and 1-10 parts of ZnO. The five constituents constitute at least 95 weight percent of the total glass and a thermally crystallized glass-ceramic article suitable as kitchen ware or table ware is made from this glass.

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patent: 3146114 (1964-08-01), Kivlighn
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Vanes-"Crystallization Studies of Na.sub.2 O-Al.sub.2 O.sub.3 -SiO.sub.2 Base Glasses"-Advances in Glass Technology pub. 1962, NYC. Plenum Press, pp. 377-381.
Leim et al., Phase Diagrams for Ceramists pub. 1964 by J. Amer. Cer. Soc. FIG. 501, System Na.sub.2 O-Al.sub.2 O.sub.3 -SiO.sub.2 .
J. Ceramic Raw Materials, in Ceramic Industry Magazine, Chicago, 1967, p. 153.

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