Seminar Announcement: Sergey Krasikov

Data pubblicazione: 6-feb-2018 12.01.09

Announcement

Tuesday, 6 February 2018, 11:00

Sala Grande Palazzina B via alla Cascata 56/C

"Use of the polymeric theory for the description of physical and chemical properties of the liquid glass SnO-SiO₂"

Sergey Krasikov

Institute of Metallurgy of Ural Branch of the Russian Academy of Sciences

Russia

sankr@mail.ru

Abstract

Discussion of experimental data from positions of the polymeric theory of the melted silicates offered by O. A. Yesin is executed. One of its basic provisions is that oxide silicate melts consist of the linear and branched anion chains of various length which are in dynamic balance. It assumes balance between "free" ions" (O^2-), one (O^-) and two- coherent (O⁰) anions. According to the polymeric theory was the sizes of structural units and size of a surface tension and viscosity of liquid systems SnO-SiO₂, SnO-SiO₂-CaO, by SnO-SiO₂-FeO are calculated. Results of calculations showed a satisfactory consent of settlement and skilled sizes. Thus, the polymeric model of silicate melts offered by O. A. Yesin is very perspective for the description of physical and chemical properties of stanniferous oxide melts.