LITHIUM DISILICATE-BASED GLASS-CERAMIC MATERIAL, METHOD FOR PRODUCTION THEREOF AND USE Russian patent published in 2015 - IPC C03C10/12 

FIELD: chemistry.

SUBSTANCE: invention relates to glass-ceramic materials based on a lithium disilicate system, which are used as dental material. The glass-ceramic material has the following composition: 55-70 wt % SiO₂, 10-15 wt % LiO₂, 10-20 wt % stabiliser selected from a group consisting of ZrO₂, HfO₂ or a mixture thereof, 0.1-5 wt % K₂O, 0.1-5 wt % Al₂O₃, 0-10 wt % additives selected from a group consisting of boron oxide, phosphorus oxide, fluorine, sodium oxide, barium oxide, strontium oxide, magnesium oxide, zinc oxide, calcium oxide, yttrium oxide, titanium oxide, niobium oxide, tantalum oxide, lanthanum oxide and mixtures thereof, as well as 0-10 wt % dyes. The invention also relates to a method of producing said glass-ceramic materials.

EFFECT: obtaining materials with improved mechanical and optical properties, as well as chemical stability.

10 cl, 2 tbl