Effect of Bi2O3 Content on the Properties of Bi2O3-BaO-B2O3 Glass System

Jakrapong Kaewkhao; Artorn Pokaipisit; WEERAPONG CHEWPRADITKUL

doi:10.4028/www.scientific.net/AMR.55-57.869

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 55-57Effect of Bi2O3 Content on the Properties of...

Effect of Bi₂O₃ Content on the Properties of Bi₂O₃-BaO-B₂O₃ Glass System

Abstract:

Glasses with composition xBi2O3:(60-x)BaO:40B2O3 with 10£x£50 (in mol%) have been prepared using the normal melt-quench technique. The optical absorption spectra of the glasses have been recorded in the wavelength range 400-700 nm. The fundamental absorption edge has been identified from the optical absorption spectra. The values of optical band gap are decreased with the addition of Bi2O3. The density and molar volume studies indicated that Bi2O3 in these glasses is acting partly as network modifier and partly as network former.Values of the theoretical optical basicity are also reported and discuss in term of oxide ion polarizability.