The influence of the spheroidization process in the flow of high-temperature plasma of glass based on the Li2O–Al2O3–SiO2 (LAS) system doped with 1.0 mol. % Nd2O3 on its crystallization properties is investigated. The resulting microspheres with a size of 32 – 64 ?m are characterized by a significantly higher glass transition temperature Tg compared to the Tg of the initial glass (751 °C and 677 °C, respectively), which may be due to both a change in chemical composition during spheroidization and a fundamentally different thermal history of microspheres and glass. Despite the delayed crystallization kinetics, the glass-ceramic structure based on ?-eucryptite-like solid solutions of LixAlxSi1 – xO2 is formed in microspheres, as in the initial glass, under the action of heat treatment, indicating the possibility of both obtaining microspheres with the glass-ceramic structure and varying their coefficient of thermal expansion near zero values.
Vladimir N. Sigaev – DSc. in Chemistry, Professor, Head of the International Center of Laser Technologies, Head of the P.D. Sarkisov International Laboratory of Functional Glass-based Materials, Head of the Department of Chemical Technology of Glass and Glass-Ceramics of the Mendeleev University of Chemical Technology of Russia (Mendeleev University), Moscow, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Andrey S. Naumov – Ph.D. Student of the Department of Chemical Technology of Glass and Glass-Ceramics of the Mendeleev University of Chemical Technology of Russia (Mendeleev University), Moscow, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Vitaliy I. Savinkov – Ph.D. in Technology, Assistant of the of the Department of Chemical Technology of Glass and Glass-Ceramics of the Mendeleev University of Chemical Technology of Russia (Mendeleev University), Moscow, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Alexey S. Lipatiev – Ph.D. in Chemistry, Assistant of the Department of Chemical Technology of Glass and Glass-Ceramics of the Mendeleev University of Chemical Technology of Russia (Mendeleev University), Moscow, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Sergey V. Lotarev – Ph.D. in Chemistry, Associate Professor of the Department of Chemical Technology of Glass and Glass-Ceramics of the Mendeleev University of Chemical Technology of Russia (Mendeleev University), Moscow, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Natalia N. Klimenko – Ph.D. in Technology, assistant professor of the Department of Chemical Technology of Glass and Glass-Ceramics of the Mendeleev University of Chemical Technology of Russia (Mendeleev University), Moscow, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Elena V. Lopatina – Ph.D. in Technology, Assistant of the Department of Chemical Technology of Glass and Glass-Ceramics of the Mendeleev University of Chemical Technology of Russia (Mendeleev University), Moscow, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
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