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<p>The viscosity of anti-irradiated glass was quantitatively characterized using beam bending viscometry (BBV), parallel plate viscometry (PPV), and rotational viscometry (RV). The Vogel-Fulcher-Tammann (VFT) equation was determined to be the most suitable for representing the viscosity-temperature characteristics of anti-irradiation glass by comparing the fitting effects and accuracy of different equations within different test ranges. The fragility index <i>m</i> of anti-irradiation glass was 47.5, as calculated using an Angell plot, and the cause of the appropriate fit of the VFT equation was analyzed. The effects of different heating temperatures and loading rates on the tensile properties of glass were studied using a universal testing machine. The results indicated that, at a tensile rate of 10 mm/s, the heating temperature increased from 903 to 1 023 K, and the deformation process of anti-irradiation glass transitioned from unstable to stable. When the tensile rate increased from 10 to 30 mm/s at 1 023 K, the deformation process of the glass was extremely unstable. This work provides theoretical guidance for the large-size preparation of flexible anti-irradiation glass.</p>

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Rheological Behavior of Na2O-Al2O3-SiO2 Glass Doped with CeO2

  • 期刊论文

  • 发表日期：

    2025年10月29日

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  • Jiahui Zhou,
  • Yanhang Wang,
  • Yinsheng Xu,
  • Tao Han

摘要

The viscosity of anti-irradiated glass was quantitatively characterized using beam bending viscometry (BBV), parallel plate viscometry (PPV), and rotational viscometry (RV). The Vogel-Fulcher-Tammann (VFT) equation was determined to be the most suitable for representing the viscosity-temperature characteristics of anti-irradiation glass by comparing the fitting effects and accuracy of different equations within different test ranges. The fragility index m of anti-irradiation glass was 47.5, as calculated using an Angell plot, and the cause of the appropriate fit of the VFT equation was analyzed. The effects of different heating temperatures and loading rates on the tensile properties of glass were studied using a universal testing machine. The results indicated that, at a tensile rate of 10 mm/s, the heating temperature increased from 903 to 1 023 K, and the deformation process of anti-irradiation glass transitioned from unstable to stable. When the tensile rate increased from 10 to 30 mm/s at 1 023 K, the deformation process of the glass was extremely unstable. This work provides theoretical guidance for the large-size preparation of flexible anti-irradiation glass.