The magazine «Glass and Ceramics» for May 2023 is out of print

Dear Colleagues!

Osipov Viktor Ivanovich 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 5th issue of the monthly scientific and technical journal "Glass and Ceramics" for 2023 is out of print.

Contents of the May issue:

- CHARACTERISTICS OF GLASSES IN PRODUCTS OF EXPERIMENTAL SIMULATION OF IMPACT MELTS

Ultrahigh-pressure high-temperature glasses are characterized by unusual structural and phase features that require closer study to elucidate their physical properties and the possibility of using innovative materials as prototypes. Experimental modeling of the impact process in laboratory conditions makes it possible to reveal the nature of phase transformations during impactogenesis. Impact glasses were obtained experimentally by melting the aluminosilicate and quartz components of the target rocks of the Kara astroblem at a pressure of ≈90 GPa and a temperature of ≈7000°C. The studies performed have shown that as a result of extreme exposure conditions, glasses of a specific composition are formed containing a high proportion of Ca and carbon. Thus, the obtained results indicate the possibility of obtaining glasses of a wide composition, including carbon-containing glasses, which can be used for further research in order to develop new materials and technologies for their production.

- FACING BUILDING MATERIAL ON THE BASIS OF MECHANICALLY ACTIVATED BREAKGLASS MODIFIED WITH SODIUM HYDROXIDE

A technology has been developed for a facing material based on mechanically activated cullet modified with sodium hydroxides. The phase composition, macro- and microstructure of the facing material have been studied.

It has been established that the microstructure of the composite modified with sodium hydroxide in the interpore space is represented by lamellar crystals of sodium meta-, di- and orthosilicate. The optimal composition has been established for obtaining a facing material with a compressive strength of 24.7 MPa and a softening coefficient of 0.91.