等温热处理过程中一种非晶态Li+导体电导行为的研究

本文在玻璃转变温度以下,采用交流伏安法连续自动观测了非晶态Li⁺导体B₂O₃-0.7Li₂O-0.7LiCl-0.1Al₂O₃在等温热处理条件下的电导行为。结果表明:材料的电导率先随时间升高,出现峰值后单调下降,并含有两个平台部分。与此相配合的DSC与XRD研究证实:形成电导率峰值的基本原因是由于发生了非晶态相分离,而电导率曲线下降部分的平台则是由于非晶态的晶化。最后,从相界关键词：

STUDY OF THE CONDUCTING BEHAVIOR OF AN AMORPHOUS Li+ CONDUCTOR IN THE ISO-THERMAL TREATMENT PROCESS

The con ducting behavior of an amorphous Li⁺ conductor B₂O₃-0.7Li₂O-0.7LiCl-0.1Al₂O₃ has been measured continuously and automatically by using the a.c. Volt-Ampere method in the isothermal treatment process at a certain temperature below its transition temperature. It was found that the conductivities of specimens increased at the initial stage and decreased monotonically after passing a maximum, and then two flat steps appeared. Comparing these results with that obtained by DSC and XRD analysis, we confirmed that the presence of the maximum of the conductivities is principally due to the amorphous phase separation, and the flat steps on the diagram of the conductivities are due to the amorphous crystallization. These results were discussed preliminarily in the view of the interface effects between different phases.