FIELD: chemistry.
SUBSTANCE: invention relates to the technology of silicates and can be used to produce articles from glass ceramics used for finishing materials. Glass composition for glass ceramics includes, wt.%: 61.7 of SiO2; 5.5 of Al2O3; 12.6 of CaO; 17.8 of MgO; 0.8 of S2–; 1.4 of Fe2+ and 0.2 of Fe0.
EFFECT: reduced duration of thermal treatment of glass for its crystallisation.
1 cl, 1 dwg, 1 tbl, 1 ex
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