Bismuth-containing lead-free glass enamels and glazes of low sil

Details Bismuth-containing lead-free glass enamels and glazes of low sil Bismuth-containing lead-free glass enamels and glazes of low sil

1992-10-19

1993-10-12

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 79, 501 21, 501 20, 501 51, C03C 3066, C03C 804, C03C 814

Patent

active

052525210

ABSTRACT:
This invention relates to a lead-free glass coating made by firing a lead-free glass composition comprising in weight percent from about 35% to about 77% of bismuth oxide, from about 10% to about 33% of boron oxide, and from about 10% to about 32% of zinc oxide at a temperature sufficient to fuse and cure the glass composition. The invention also relates to lead-free glazes and enamels that exhibit excellent acid resistance, possess low coefficients of linear or thermal expansion, and moderate maturation temperatures.

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Chemical Abstracts, vol. 106, No. 6, Feb. 1987, (Columbis, Ohio), p. 289, Abstract 37474r.
Unusual Properties and Structure of Glasses in the Systems Bi.sub.2 O.sub.3 --B.sub.2 O.sub.3 --SrO; Bi.sub.2 O.sub.3 --B.sub.2 O.sub.3 --BaO; Bi.sub.2 O.sub.3 --ZnO and Bi.sub.2 O.sub.3 --PbO by V. Janakirama-Rao, Dec. 1965.

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