Properties and Structures of Bi2O3－B2O3－TeO2 Glass
作者： Guoying Zhao , Ying Tian , Huiyan Fan , Junjie Zhang , Lili Hu
DOI: 10.1016/J.JMST.2012.11.003
关键词:
摘要: Glass formation range of Bi2O3–B2O3–TeO2 system has been investigated (B2O3 ≤ 40 mol%). Four glasses with compositions xBi2O3–30B2O3–(70–x)TeO2 (x = 40, 50, 60 and 70 mol%) have prepared by using melt quenching technique. The effect Bi2O3 content on thermal stability, optical properties structures these four is systematically inductive coupled plasma emission spectrometer (ICP), differential scanning calorimetry (DSC), Raman spectra X-ray photoelectron spectroscopy (XPS). It found that the density, refractive index basicity increase increasing Bi2O3. XPS show glass network mainly constituted [BiO6] octahedron, [TeO4] trigonal bipyramidal, [TeO3] pyramid, [BO3] pyramid [BO4] tetrahedron structural units. With Bi2O3, coordination number around B atom changes from 3 to 4 units are converted Bi5+ ions may exist in (BBT) their amount grows content.
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