The magazine «Glass and Ceramics» for November 2022 is out of print

Dear colleagues!

Viktor Osipov President of the Association "StekloSouz" of Russia is a member of the editorial board of the journal "Glass and Ceramics".

We inform you that the 11th issue of the monthly scientific and technical journal "Glass and Ceramics" for 2022 is out of print.

Contents of the November issue:

- INFLUENCE OF BORON OXIDE ON THE TECHNOLOGICAL PROPERTIES OF STRONTIUM ALUMINOSILICATE GLASSES FOR DENTISTRY

The effect of boron oxide additives in an amount of 0 to 11 mol. % on the melting properties of glasses in the SrO–Al2O3–TiO2–ZrO2–B2O3–SiO2 system for use as fillers in dental filling composites in order to reduce the melting temperature to technologically acceptable values (no more than 1500 0С) and increase the transparency of the produced granulate. It has been established that with an increase in the B2O3 content, the melting temperature can be reduced from 1600 0С (in glasses without B2O3 additives) to 1480 0С with a B2O3 content of 11.8 mol. %, while the glass transition temperature decreases from 820 to 743 0C. Already at a B2O3 content of 6 mol. % at a melting temperature of 1500 0C, transparent glasses with a light transmission of 80% are produced, promising for the creation of filling composites.

- GLASSES WITH INCREASED CONTENT OF PHOSPHORUS OXIDE FOR FILLERS OF GLASS IONOMER CEMENTS

Glasses were obtained in the SiO2–Al2O3–SrO–P2O5–F system with a phosphorus oxide content in the range of 7–12 mol %. %. The combination of properties of the obtained glasses (refractive index 1.514 - 1.535, TCLE 44?10-7 - 61?10-7 K-1, transmission above 85%, radiopacity not less than 300%) in conjunction with the manufacturability of synthesis (melting temperature below 1500 0C) indicates that they are promising candidates for use as fillers in glass ionomer cements for dentistry.

- MODERN TRENDS IN THE DEVELOPMENT OF GLASS MATTING TECHNOLOGIES

Modern trends in the development of technologies for matting glass and products from it are considered. An efficient glass matting technology has been developed using alternative energy sources, in particular, low-temperature plasma. It is shown that when matting with iron powders with a dispersion of 160 and 450 μm, a high-quality matte surface of the “frosty” matting type is formed. The microstructure of the matted surface has been studied. Theoretical aspects of glass matting are considered. The technological parameters of matting are determined and the economic efficiency of the developed technology is shown.