Molten salt synthesis of anisotropy BaBi4Ti4O15 powders in K2SO4-Na2SO4 flux

摘要：

Anisotropic BaBi4Ti4O15 powder was synthesized by a molten salt synthesis (MSS) method in K2SO4-Na2SO4 flux and the effects of different process parameters such as calcining temperature, and ratio of salt to reactant (R) on the phase formation and morphology of anisotropic BaBi4Ti4O15 particles were also investigated. The as-synthesized powder calcined at 850-950℃ exhibits a single tetragonal BaBi4Ti4O15 phase. The morphology of BaBi4Ti4O15 powder could be adjusted by changing the synthesis conditions. The average particle size (APS) of BaBi4Ti4O15 powder increased with R changing from 0.8 to 1.0, while it decreased with further increasing of R to 1.2. In addition, the APS increased with increasing calcining temperature and it showed an Arrhenius dependence on the temperature. The corresponding apparent activation energy for particle growth is 31.9kJ/mol for calcining temperature of 850-1000℃.

关键词： Molten salt synthesis barium bismuth titanate anisotropic

作者: Yong-jun Gu Jin-liang Huang Li-hua Li Ke Zhang Xiao Wang Qian Li Xiao-hua Tan Hui Xu

作者单位: School of Materials Science & Engineering, Henan University of Science & Technology,Luoyang 471003, School of Materials Science & Engineering, Henan University of Science & Technology,Luoyang 471003, Department of Civil Engineering & Materials Science, Henan University of Urban Construction,Pingding Institute of Materials Science, Shanghai University, Shanghai 200072, China

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 333-338

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）