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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Development of novel ternary tellurite glasses for high temperature fiber optic mid-IR chemical sensing
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Development of novel ternary tellurite glasses for high temperature fiber optic mid-IR chemical sensing

机译：用于高温光纤中红外化学传感的新型三元碲酸盐玻璃的研制

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摘要

The properties of novel ternary tellurite glasses, based on the TeO2–BaO–Bi2O3 system, are reported for their applications in on-line chemical sensing and process control by characterizing the fundamental frequencies of molecular vibrations in the 2–5 μm spectral region of mid-IR. The chemical sensing for process control also requires above room temperature operation (>100 ℃) for prolonged periods of time. Bulk samples of ternary tellurite glasses with a number of different compositions were prepared using heavy molecular weight oxides of TeO2, BaO, and Bi2O3. Infrared and Raman spectroscopic analysis was carried out together with differential thermal analysis to study the relationship between glass structure and thermal and viscosity properties. The temperature dependence of the viscosities of the glasses is also reported. The compositional dependence of Raman frequency shifts and the corresponding change in the coordination of Te–O structure is discussed. The results from the IR edge, reflection spectroscopic, and wavelength dependence of refractive index are also reported.
机译：据报道，基于TeO2–BaO–Bi2O3系统的新型三元碲酸盐玻璃的特性通过表征中点2–5μm光谱区域中分子振动的基本频率，将其应用于在线化学传感和过程控制中-IR。用于过程控制的化学传感还要求长时间在高于室温（> 100℃）的环境下运行。使用TeO2，BaO和Bi2O3的高分子量氧化物制备了具有许多不同组成的三元碲酸盐玻璃的大块样品。进行了红外和拉曼光谱分析以及差热分析，以研究玻璃结构与热和粘度性能之间的关系。还报告了玻璃粘度的温度依赖性。讨论了拉曼频移的成分依赖性以及Te–O结构配位的相应变化。还报道了来自红外边缘，反射光谱和折射率的波长依赖性的结果。

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