High strength and aesthetic lithium disilicate crystalline glass-ceramics containing cristobalite crystal and preparation method thereof

摘要

Provided is lithium disilicate crystalline glass containing cristobalite crystal phase for high strength and aesthetic traits and its manufacturing process thereof. Exemplary embodiments of the present invention provide the high strength and aesthetic lithium disilicate crystalline glass, one kind of dental restoration materials, and its manufacturing method which induces the growth of the different crystal phase, cristobalite, from glass with lithium disilicate crystal.

主权项

1. A lithium disilicate glass-ceramic having a crystobalite crystal phase, the lithium disilicate glass-ceramic comprising:
a glass component comprising 11-13 wt % Li2O, 70.0-77.0 wt % SiO2, 2-3 wt % P2O5 as a nuclei formation went 2-5 wt % Al2O3 to increase glass transition temperature, softening temperature, and chemical durability of the glass component 2.0-3.0 wt % ZrO2, and 1-4 wt % colorant.