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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 >Fabrication of Bi-free TiO_2 nano-crystallized glass
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Fabrication of Bi-free TiO_2 nano-crystallized glass

机译：无Bi TiO_2纳米晶玻璃的制备

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摘要

Fabrication of Bi-free transparent TiO_2 glass-ceramics was attained by substitution a mixture of alkaline earth oxide and ZnO for Bi _2O_3. It is suggested that ZnO, which can play a role of both intermediate and network modifier, is important for the substitution. Observed particle size of precipitated anatase in the glass-ceramics was several nanometers enough to possess high transparency. It was found that diffraction intensity of metastable anatase in XRD patterns of glass-ceramics increases with increasing ZnO-concentration with heat-treatment at T_g + 50 K. The obtained results show that substitution of Bi_2O_3 by thermodynamic approach is effective for glass materials as well as glass-ceramics.
机译：通过用碱土金属氧化物和ZnO的混合物代替Bi _2O_3，可以实现无Bi透明TiO_2玻璃陶瓷的制备。可以同时起到中间和网络改性剂作用的ZnO对取代很重要。在玻璃陶瓷中观察到的沉淀的锐钛矿的粒径为几纳米，足以具有高透明度。研究发现，在T_g + 50 K下，随着热处理ZnO浓度的升高，玻璃陶瓷X射线衍射图中亚稳态锐钛矿的衍射强度增加。所得结果表明，用热力学方法代替Bi_2O_3对玻璃材料也有效。作为玻璃陶瓷。

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