Effect of Dy2O3 on Physical, Properties of B2O3–TeO2–ZnO–Li2O–WO3 Glasses

IF 0.8 4区材料科学 Q4 MATERIALS SCIENCE, CERAMICS

Glass Physics and Chemistry Pub Date : 2023-05-24 DOI:10.1134/S1087659622600132

Amarkumar Malge, T. Sankarappa, G. B. Devidas, T. Sujatha, Mohansingh Heerasingh, Ashwini Devidas

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Abstract

Effect of Dy₂O₃ on the properties of borotellurite glasses, (B₂O₃)_0.2–(TeO₂)_0.22 – x–(ZnO)_0.28–(Li₂O)_0.20–(WO₃)_0.10–(Dy₂O₃)_x; x = 0.01 to 0.06 has been investigated. Density increased and molar volume decreased with increase of Dy₂O₃ and they were explained in terms of composition. Glass transition temperature increased and thermal stability decreased with increase of Dy₂O₃ content. Conductivity increased and its activation energy decreased up to 0.04 mole fraction of Dy₂O₃ and behaved in opposite way for higher amounts of Dy₂O₃. These results are ascribed to network changes occurring around 0.04 mole fractions of Dy₂O₃. For the first time the effect of Dy₂O₃ on conductivity has been reflected in this fashion. Polaron hopping distance, polaron radius and Debye’s temperature were determined and discussed appropriately.

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Dy2O3对b2o3 - teo2 - zno - li20 - wo3玻璃物理性能的影响

Dy2O3对硼碲酸盐玻璃(B2O3)0.2 - (TeO2)0.22 - x - (ZnO)0.28 - (Li2O)0.20 - (WO3)0.10 - (Dy2O3)x性能的影响研究了X = 0.01至0.06。随着Dy2O3含量的增加，密度增大，摩尔体积减小，这可以从组成上解释。随着Dy2O3含量的增加，玻璃化转变温度升高，热稳定性降低。当Dy2O3的摩尔分数为0.04时，电导率增加，活化能降低，而当Dy2O3含量较高时，电导率则相反。这些结果归因于发生在0.04摩尔分数的Dy2O3的网络变化。Dy2O3对电导率的影响第一次以这种方式反映出来。确定了极化子跳跃距离、极化子半径和德拜温度，并进行了适当的讨论。

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来源期刊

Glass Physics and Chemistry 工程技术-材料科学：硅酸盐

CiteScore

1.20

自引率

14.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Glass Physics and Chemistry presents results of research on the inorganic and physical chemistry of glass, ceramics, nanoparticles, nanocomposites, and high-temperature oxides and coatings. The journal welcomes manuscripts from all countries in the English or Russian language.

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