Thermal Stability of ZnO/Tm2O3 Substitution on Tellurite-Zinc-Bismuth-Sodium (TZBN) Glasses

Ahmad Marzuki, A. D. Sutomo, Hery Purwanto, R. Riyatun, D. E. Fausta, Laila Amalia Putri, R. W. Astuti
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Abstract

Tm2O3 doped tellurite-zinc-bismuth-sodium (TZBN) glass samples with varying compositions were prepared through melt quenching technique. The composition of these glass was 60 TeO2 - (30-x) ZnO - 5 Bi2O3 - 5 Na2O - x Tm2O3 with (x = 0.5; 1.0; 1.5; 2.0 and 2.5 mol%). We reported the result of a systematic study of the thermal properties of these glass by using differential thermal analysis (DTA). The thermal characteristics of these glass (glass transition, Tg, crystallization, Tc, and melting, Tm) increased significantly with Tm2O3 content and the glasses were more thermally stable (greater ΔT=Tc-Tg). The glass transition value slightly increased from 314 to 323 °C otherwise thermal stability ΔT changed from 112 to 131°C. The ratio of Tg/Tm values for TZBN doped Thulium glasses were about 0.558 to 0.589, indicated that these glasses possess good thermal stability. The Hruby parameter (Kg) with Tm3+ doped in this study improved glass-forming ability, which is desirable for various applications such as optical fibers drawing and sensors.
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碲锌铋钠 (TZBN) 玻璃上 ZnO/Tm2O3 替代物的热稳定性
通过熔体淬火技术制备了不同成分的掺杂 Tm2O3 的碲锌铋钠 (TZBN) 玻璃样品。这些玻璃的成分为 60 TeO2 - (30-x) ZnO - 5 Bi2O3 - 5 Na2O - x Tm2O3,其中 x = 0.5; 1.0; 1.5; 2.0 和 2.5 mol%。我们报告了利用差热分析(DTA)对这些玻璃的热特性进行系统研究的结果。这些玻璃的热特性(玻璃化转变 Tg、结晶 Tc 和熔化 Tm)随着 Tm2O3 含量的增加而显著提高,而且玻璃的热稳定性更高(ΔT=Tc-Tg 越大)。玻璃化转变值从 314°C 略微升高到 323°C,否则热稳定性 ΔT 就会从 112°C 变为 131°C。掺杂 TZBN 的铥玻璃的 Tg/Tm 值之比约为 0.558 至 0.589,表明这些玻璃具有良好的热稳定性。本研究中掺入 Tm3+ 的 Hruby 参数 (Kg) 提高了玻璃的成型能力,这对于光纤拉伸和传感器等各种应用都是理想的。
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