...
首页> 外文期刊>European Journal of Glass Science and Technology, PartB. Physics and Chemistry of Glasses >Influence of particle size of glass powder on the crystallisation kinetic parameters of a fluorophosphate glass
【24h】

Influence of particle size of glass powder on the crystallisation kinetic parameters of a fluorophosphate glass

机译:玻璃粉粒径对氟磷酸盐玻璃结晶动力学参数的影响

获取原文
获取原文并翻译 | 示例
           

摘要

Crystallisation behaviour of a fluorophosphate glass composed of the system AlF_3-CaF_2-MgF_2-SrF_2-BaF_2-Ba(PO_3)_2 was studied at nonisothermal conditions using differential thermal analysis (DTA).Kinetic parameters for crystallisation,namely,the activation energy.E,frequency factor,#upsilon#,and Avrami exponent,n,were determined as a function of the particle size of the glass powder and different furnace atmosphers.Also,the effect of flow rate of nitrogen gas on the crystallisation behaviour was studied.Results are analysed in terms of a theory applicable to nonisothermal crystallisation kinetics.E.#upsilon# and n decreased as particle size of the glass powder increased.Furnace atmosphere and flow rate of nitrogen gas did not have a significant effect on the kinetic parameters.
机译:利用差热分析(​​DTA)研究了由AlF_3-CaF_2-MgF_2-SrF_2-BaF_2-Ba(PO_3)_2组成的氟磷酸盐玻璃的结晶行为。结晶的动力学参数,即活化能.E确定玻璃纤维的粒度,#upsilon#和Avrami指数n与玻璃粉的粒径和不同炉膛气氛的关系。此外,还研究了氮气流量对结晶行为的影响。根据适用于非等温结晶动力学的理论进行分析.E.upsilon#和n随着玻璃粉末粒径的增加而降低。炉气氛和氮气流量对动力学参数没有显着影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号