Preparation and study of new class SeO2 based glass obtained at high oxygen pressure

In recent years, scientists have turned their attention to the synthesis of a new class of amorphous materials – glass with the participation of SeO2 (selenite glass), and to the study of their structure. Among the established centers for systematic research on these materials are the Institute of Metal Science, Equipment and Technologies with Center for Hydro- and Aerodynamics “Acad. A. Balevski” at the Bulgarian Academy of Sciences (IMSETHC – BAS) – Sofia, Bulgaria and the Department of Silicate Technology at the University of Chemical Technology and Metallurgy (UCTM) – Sofia, Bulgaria. These types of glass have specific properties such as high permeability in the visible and the near infrared regions of the spectrum, high refractive index, and low melting point. On the other hand, the amorphous materials in this class of can serve as model compositions. The obtained structural information can be used to form generalizations about the vitreous state and the possibility to modify the structure and properties of glass in order to improve the technological parameters.