The controlled powders morphology of bismuth niobium titanate depending upon the isothermal annealing
In order to investigate the effect of isothermal annealing on the powder morphology,Bi3NbTiO9 powders were first synthesized by molten salt method and then calcinated at different temperatures for different dwelling time.The microstructure observation revealed that the crystal morphology of Bi3NbTiO9 powder changed greatly with the prolonged dwelling time.The powders started to change from cube to sphere in shape with the dwelling time prolonged to 240min and then became cube again as the dwelling time was prolonged beyond 360min at 850℃.In addition to a time-dependent particle evolution study,we explored primarily the original drive force of morphology transform from the viewpoint of dynamics.
Bi3NbTiO9 Powder morphology Calcinations
Xiao-Chen Liu Bao-Rang Li Li Wang
Key Laboratory of Condition Monitoring and Control or Power Plant Equipment, North China Electric Power University, Beijing, 102206, China
国际会议
北京
英文
612-615
2012-12-16（万方平台首次上网日期，不代表论文的发表时间）