The results of a study of glasses and glass-ceramic materials synthesized in the R 2 O (Na 2 O, K 2 O) -MgO-CaO system are presented. -Al 2 O 3 -SiO 2 using granitoid screenings of the Mikashevichskoe deposit. Glass-ceramic materials have been obtained that, according to their performance characteristics, can be used as proppants in the oil and gas industry.
The features of the manufacture of optically transparent ceramic materials for various fields of application are considered. Technologies for compacting and sintering transparent ceramics are described, including cold pressing followed by sintering in various media, hot pressing, hot isostatic pressing, spark plasma sintering, and slip casting.
Luminescent materials doped with europium ions of the composition SrAl 2 Si 2 O 8 / LaBO 3 using organosilicon compounds (methylpolysiloxane MK). Luminescent properties in the region of red and blue LEDs are inherent in materials synthesized at 1100 ° C. In this case, strong luminescence is inherent in trivalent europium ions (peaks at 591, 616, and 655 nm) in the red region of the spectrum and weak luminescence in the blue region of bivalent europium ions (peak at 405 nm). The possibility of embedding two types of europium cations (Eu2 + and Eu3 +) into the structure of synthesized polycrystalline materials makes it possible to regulate their spectral properties depending on the synthesis conditions
