标题：Controlled synthesis and growth mechanism of Bi2O3/YSZ solid electrolyte materials
作者：Luan, Junpeng; Zhang, Jingde; Yao, Xiaomei; Li, Fei; Jia, Baoxin
作者机构：[Luan, Junpeng; Zhang, Jingde; Yao, Xiaomei; Li, Fei; Jia, Baoxin] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China.; [Luan, Junpeng 更多
通讯作者地址：[Zhang, JD]Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Peoples R China.
关键词：Co-precipitation method; Composite powders; Rod-like Bi2O3
摘要：Bi2O3/YSZ (Y2O3-stabilized ZrO2) composite powders for solid electrolytes application were synthesized by chemical co-precipitation method. The effects of raw material ratios and temperatures on the properties of the composite powders were studied. The morphology, crystal structure and phase composition of the composite powders were characterized by means of field emission scanning electron microscope (FESEM), energy dispersive spectrometer (EDS) and X-ray diffraction (XRD). The results showed that the Bi2O3/YSZ composite powders could be fabricated by chemical process, and the composite powders with different shapes were prepared when the ratio of raw materials or temperature changed. The one-dimensional rod-like Bi2O3 particles were obtained when the content of Bi2O3 was above 10 mol% or the heating mechanism was changed. And the growth mechanism of Bi2O3 in the synthesis process was studied. The oriented attachment with interaction of Ostwald ripening was the possible growth mechanism. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.