Characteristics of the Structural State of Bismuth Ions in Bismuth-Borate Glasses

Аннотация

The properties and graphical plots of the properties of bismuth-borate glasses in a wide range of compositions—20 to 80 mol.% Bi₂O₃ —are presented. In multi-bismuth glasses both the boron and bismuth ions are found in two coordination states: B³⁺, B⁴⁺ and Bi³⁺, Bi⁶⁺. The [BiO₃] groups play the role of a conventional glass former but manifest weakly in the IR spectra.