...
首页> 外文期刊>Journal of solid state electrochemistry >Study of the fluorite-pyrochlore-fluorite phase transitions in Ln_2Ti_20_7(Ln=Lu,Yb,Tm)
【24h】

Study of the fluorite-pyrochlore-fluorite phase transitions in Ln_2Ti_20_7(Ln=Lu,Yb,Tm)

机译:Ln_2Ti_20_7(Ln = Lu,Yb,Tm)中萤石-次氯酸盐-萤石相变的研究

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       

摘要

The ordering processes in Ln_2Ti_2O_7(Ln=Lu,Yb,Tm)are studied by X-ray diffraction,thermal analysis,infrared absorption(IR)spectroscopy,and electrical conductivity measurements.The coprecipita-tion method followed by freeze-drying was used for Ln_2Ti_2O_7 synthesis.The region of low-temperature fluorite phase existence is 600 deg C1,600 deg C.The conductivity values are 5.10~(-3)S/cm for Tm_2Ti_2O_7,6-10~(-3)S/cm for Yb_2Ti_2O_7,and 10~(-2)S/cm for Lu_2Ti_2O_7 at 740 deg C.This order-disorder transition leads to a 2 orders of magnitude conductivity growth and a 10-30 times permittivity increase in Ln_2Ti_2O_7 samples obtained at 1,700 deg C.
机译:通过X射线衍射,热分析,红外吸收光谱,电导率测量等方法研究了Ln_2Ti_2O_7(Ln = Lu,Yb,Tm)的有序化过程。采用共沉淀法冷冻干燥Ln_2Ti_2O_7的合成。低温萤石相存在的区域是600℃ 1600摄氏度.Tm_2Ti_2O_7的电导率为5.10〜(-3)S / cm,Yb_2Ti_2O_7的电导率为6-10〜(-3)S / cm,Lu_2Ti_2O_7的电导率为740摄氏度的10〜(-2)S / cm。 C.此有序-无序跃迁导致Ln_2Ti_2O_7样品的电导率增长2个数量级,介电常数提高10-30倍。 1,700摄氏度

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