Phase separation and properties of glasses of the system MgO–CaO–Fe 2O3–Al2O3–В2O3–SiO2
https://doi.org/10.29235/1561-8331-2022-58-3-317-324
Abstract
The synthesis and study of model glasses of the MgO–CaO–Fe2O3–Al2O3–SiO2 system, which is the base for obtaining continuous basalt fiber, has been carried out. Systematized data on the effect of components on the glasses structure and the sequence of phase separation processes occurring during their heat treatment have been obtained. It is shown that during phase separation, crystalline phases are separated in the following sequence: magnetite–pyroxene–plagioclase with a predominance of the anorthite component. Glasses of the MgO–CaO–Fe2O3–Al2O3–SiO2 system were modified by adding B2O3, and the active role of this component in the processes of glass formation and crystallization was shown. The ratio of glass-forming and modifying components of model glasses is established, at which an increase in the strength of glasses from 110 to 180 MPa is achieved. Based on the study of the technological properties of model glasses and strength characteristics, components were determined for modifying basalt glasses in order to increase the strength of the fiber.
About the Authors
Yu. G. Pavlyukevich
Belarusian State Technological University
Belarus
Belarus
Pauliukevich Yury G. – Ph. D. (Engineering), Associate Professor, Head of the Department.
13a, Sverdlov str., 220006, Minsk
L. F. Papko
Belarusian State Technological University
Belarus
Belarus
Papko Ludmila F. − Ph. D. (Engineering), Associate Professor.
13a, Sverdlov str., 220006, Minsk
M. M. Hundzilovich
Belarusian State Technological University
Belarus
Belarus
Hundzilovich Mikalai M. – Ph. D. (Engineering).
13a, Sverdlov str., 220006, Minsk
P. S. Larionov
Belarusian State Technological University
Belarus
Belarus
Larionov Pavel S. – Junior Researcher.
13a, Sverdlov str., 220006, Minsk
A. A. Uvarov
Belarusian State Technological University
Belarus
Belarus
Uvarov Alexander A. – student of the Faculty of Chemical Technology and Engineering.
13a, Sverdlov str., 220006, Minsk
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