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FORMATION AND CRYSTALLIZATION OF LEAD HALIDE BASED GLASSES

机译：卤化铅基玻璃的形成和结晶

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摘要

A series of new glass compositions based on PbX_2 (X: Cl, Br or I) has been studied. Binaiy and ternary glasses resulted from the association of PbI_2 with PbBr_2, PbCl_2, Agi, KCl and KBr. By means of differential scanning calorimetiy (DSC), the mechanism and kinetics of crystallization process were studied. The X-ray diffraction studies demonstrated that there was the formation of complicated crystalline phases in crystallized lead iodide based glasses. By heat treating halide glasses of appropriate composition under adequate heating temperature and duration, the lead iodide based glasses could be converted into glass-ceramics with microcrystal size less 1 μm having improved mechanical properties.
机译：已经研究了一系列基于PbX_2（X：Cl，Br或I）的新型玻璃组合物。 Binaiy和三元玻璃是PbI_2与PbBr_2，PbCl_2，Agi，KCl和KBr缔合的结果。利用差示扫描量热法（DSC）研究了结晶过程的机理和动力学。 X射线衍射研究表明，在结晶的碘化铅基玻璃中形成了复杂的结晶相。通过在适当的加热温度和持续时间下对适当组成的卤化物玻璃进行热处理，可以将基于碘化铅的玻璃转变为具有改善的机械性能的微晶尺寸小于1μm的玻璃陶瓷。

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  • 来源
  • 会议地点 Beijing(CN)
  • 作者

    Cheng Jijian; Jin Zhengwu;

  • 作者单位

    Research Institute of Glasses and Ceramics, East China University of Science and Technology, Shanghai 200237, P. R. China;

    Research Institute of Glasses and Ceramics, East China University of Science and Technology, Shanghai 200237, P. R. China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 玻璃工业;
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