TY JOUR TI IDENTIFICATION OF GLASS CRYSTALLIZATION PRODUCTS FOR THE PRODUCTION OF FIBERGLASS OBTAINED BASED ON MAN-MADE WASTE FROM THERMAL POWER PLANTS KW glass fibers KW compositions KW state diagrams KW crystallization KW crystallization products KW identification JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Onischuk, V.I. AU Lazarova, Y.S. AU Prokhorenkov, D.S. AU Fanina, E.A. AU Linets, V.V. PY 2023 IS 8 PB Belgorod State Technological University named after V.G. Shukhov