Abstract
Glass formation V2O5Bi2O3Fe2O3 system was investigated by the roller-quenching method and low melting V2O5- and Bi2O3-rich glasses were obtained. Glasses were characterized by X-ray diffraction, differential thermal analysis (DTA), IR and Mössbauer spectroscopy. The glass transformation temperature, Tg, varied between 270 and 442°C, and the crystallization temperature, Tx, was in the range of 342–550°C. Structural models for glasses of the V2O5Bi2O3Fe2O3 system are suggested on the basis of IR and Mössbauer spectral investigations. It was shown that the glasses posses [VO5], [VO4], [BiO6], [FeO6] and [FeO4] groups as basic structural units.
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