Durable glass enamel composition

摘要

The present invention provides partially crystallizing lead-free and cadmium-free glass enamel composition that fuse at low temperatures. Glass enamel compositions according to the present invention form predominantly bismuth titanate and optionally zinc titanate crystals upon firing. Preferably, glass enamel compositions according to the invention include a glass component that includes by weight from about 11% to about 52% SiO₂, from 10.2% to about 40% TiO₂, from about 5% to about 75% Bi₂O₃, up to about 8% B₂O₃, up to about 14% BaO+SrO, and up to about 45% by weight ZnO, where the sum of Bi₂O₃ and ZnO comprises from about 30% to about 85% of the glass component by weight.