摘要
对非晶态Cu^+快离子导体0.4CuI-0.3Cu_2O-0.3P_2O_5在等温热处理条件下测量离子电导率的同时,进行了X射线衍射(XRD)与扫描电子显微术(SEM)研究。结果表明:初始的非晶态材料是分相的;随着等温热处理,分离的非晶第二相逐渐消失,并发生非晶态晶化;晶态的γ-CuI与Cu_2P_2O_7先后析出,逐渐长大。此材料的分相和晶化行为同电导率反常性的对应,再一次证实了非晶态快离子导体中的相界效应及其普遍意义。
The X-ray diffraction (XRD) and scanning electron microscopy (SEM) study was carri-ed out for an amorphous Cu+ conductor 0.4CuI-0.3 Cu_2O-O_(-0.3)P_2O_5 with the simultaneous conductivity measurement in the isothermal heat treament process. The results indicated that the initial amorphous material was phase-separated. In the course of time, the separated amorphous phase disappeared, the crystalline λ-Cul and Gu_2P_2O_7 formed in sequence and grew up gradually. The correlation of the phase separation and crystallization behavior with the con-ductiyity anomaly confirmed again the interface effect between different phases in amorphous fast ionic conductors and its universality.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第4期561-564,T002,共5页
Acta Physica Sinica
基金
国家自然科学基金
