Abstract
The aim of the study is to synthesize technical glass ceramics containing magnesium oxide and fluoride in boroaluminosilicate systems. As a result of the work, the range of compositions was determined, in which it is possible to obtain transparent sitalls with the required physicochemical characteristics. The optimal ratio of oxides for the synthesis of the initial glass has established, and the temperature ranges of nucleation and growth of crystals in glass for the formation of a cordierite crystalline phase have been determined. The processes of crystallization of glasses of cordierite composition, containing B2O3, have studied by a one-stage mode of heat treatment of glasses at 1000-1200 oC. The sequence of crystallization of phases in glasses and their effect on the properties of glass-crystalline materials of the system (MgO•Al2O3)-B2O3-SiO2, the compositions were in the region of metastable segregation of the system along the section of 2MgOꞏ2Al2O3∙5SiO2-2(MgO∙Al2O3)5B2O3, were determined
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