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<p>The research conducted in this study focused on the thermal characterization of xMoO<sub>3</sub>–(60 − x)V<sub>2</sub>O<sub>5</sub>–40TeO<sub>2</sub> glassy systems with different concentrations of MoO<sub>3</sub> (0 ≤ x ≤ 60) fabricated by conventional melt-quenching routine. To further elucidate the calorimetric characteristics of the samples, thermal analysis was conducted using heating rate–tuned differential scanning calorimetry (DSC). Also, how the glass transition temperature (T<sub>g</sub>) depends on the heating rate (φ) and MoO<sub>3</sub> content (x) was investigated; in which certify the shift of T<sub>g</sub> to the higher temperatures with increase of φ. By means of the DSC outputs, T<sub>g</sub> dependence to the MoO<sub>3</sub> content was revealed and so, an empirical relation was supposed for the revealed dependency. In addition, the Kauzmann temperature (T<sub>k</sub>) was determined for the understudied glasses. It was found to increase from 186.83 to 270.42&#xa0;°C with increasing MoO<sub>3</sub> content. In addition, the applicability of JMA model to crystallization kinetics was verified.</p>

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Study of the glass transition temperature dependence to the composition in xMoO3–(60 − x)V2O5–40TeO2 glassy systems

  • 期刊论文

  • 发表日期：

    2026年4月13日

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  • Dariush Souri,
  • Seyyedeh Fatemeh Hosseini

摘要

The research conducted in this study focused on the thermal characterization of xMoO3–(60 − x)V2O5–40TeO2 glassy systems with different concentrations of MoO3 (0 ≤ x ≤ 60) fabricated by conventional melt-quenching routine. To further elucidate the calorimetric characteristics of the samples, thermal analysis was conducted using heating rate–tuned differential scanning calorimetry (DSC). Also, how the glass transition temperature (Tg) depends on the heating rate (φ) and MoO3 content (x) was investigated; in which certify the shift of Tg to the higher temperatures with increase of φ. By means of the DSC outputs, Tg dependence to the MoO3 content was revealed and so, an empirical relation was supposed for the revealed dependency. In addition, the Kauzmann temperature (Tk) was determined for the understudied glasses. It was found to increase from 186.83 to 270.42 °C with increasing MoO3 content. In addition, the applicability of JMA model to crystallization kinetics was verified.