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›› 2005, Vol. 5 ›› Issue (2): 175-178.

• 过程与工艺 • 上一篇    下一篇

热处理对硼泥微晶玻璃微观结构的影响

史培阳,姜茂发,刘承军,邓江宁,朱明伟   

  1. 东北大学材料与冶金学院
  • 出版日期:2005-04-20 发布日期:2005-04-20

Effect of Heat Treatment on the Microstructure of Glass Ceramic from Boron Mud

SHI Pei-yang,JIANG Mao-fa,LIU Cheng-jun,DENG Jiang-ning,ZHU Ming-wei   

  1. College of Materials and Metallurgy, Northeastern University
  • Online:2005-04-20 Published:2005-04-20

摘要: 以硼泥为主要原料制备微晶玻璃,通过DTA, XRD, SEM等分析方法,对CaO-MgO-Al2O3-SiO2系玻璃的析晶性能进行研究,系统地分析了烧结时间和晶化时间对微晶玻璃结构的影响. 结果表明其主晶相为钙铁辉石,次晶相为尖晶石和橄榄石,晶粒的尺寸约为2~5 μm;其集合体呈枝晶、柱状晶体和块状晶体;在780℃下的最佳烧结时间为4 h,最佳晶化时间为4 h.

关键词: 微晶玻璃, 硼泥, 烧结时间, 晶化时间

Abstract: Glass-ceramic was prepared from raw materials mainly containing boron mud, and the crystallizability of glass ceramic of CaO-MgO-Al2O3-SiO2 system was studied by means of DTA, XRD and SEM. Effects of sintering time and crystallizing time on the microstructure of glass ceramic were also analyzed. The results show that the main crystalline phase of the glass ceramic is hedenbergite, while the subordinate crystalline phases are spinel and olivine, its grain sizes are about 2~5 μm, with dendrite, columnar crystal and bulk crystal existing in aggregation, and the optimum sintering time and crystallizing time are 4 and 4 h, respectively.

Key words: glass-ceramic, boron mud, sintering time, crystallizing time