首页 | 本学科首页   官方微博 | 高级检索  
     检索      

非晶钛酸铋的晶化过程
引用本文:徐国成,潘玲,关庆丰,邹广田.非晶钛酸铋的晶化过程[J].物理学报,2006,55(6):3080-3085.
作者姓名:徐国成  潘玲  关庆丰  邹广田
作者单位:吉林大学材料科学与工程学院,超硬材料国家重点实验室,长春 130025
摘    要:利用差热分析、X射线衍射和透射电子显微镜等技术对溶胶-凝胶法合成的凝胶的晶化过程进行了分析,实验结果表明,Bi4Ti3O12非晶凝胶晶化过程经历了四个过程:首先在433℃先形成了Bi2O3和TiO2亚稳相,然后在488℃时TiO2亚稳相与Bi2O3反应形成Bi,Ti复合氧化物亚稳相Bi2T 关键词: 钛酸铋 铁电材料 溶胶凝胶 非晶 晶化过程

关 键 词:钛酸铋  铁电材料  溶胶凝胶  非晶  晶化过程
文章编号:1000-3290/2006/55(06)/3080-06
收稿时间:11 21 2005 12:00AM
修稿时间:2005-11-212005-12-15

Crystallization of amorphous bismuth titanate
Xu Guo-Cheng,Pan Ling,Guan Qing-Feng,Zou Guang-Tian.Crystallization of amorphous bismuth titanate[J].Acta Physica Sinica,2006,55(6):3080-3085.
Authors:Xu Guo-Cheng  Pan Ling  Guan Qing-Feng  Zou Guang-Tian
Institution:College of Materiasl Science and Engineering, State Key Laboratory of Superhard Materials, Jilin University, Changchun 130025, China
Abstract:The phase transformation of amorphous bismuth titanate fabricated by sol-gel method was investigated by X-ray diffraction (XRD), transmissions electron microscopy (TEM) and differential thermal analysis (DTA). The experimental results show that the four-step crystallizations were present on heating. The metastable phases Bi2O3 and TiO2 were formed firstly at 433℃, and Bi2Ti4O11 phase was subsequently formed at 488℃ by the reaction between Bi2O3 and TiO2. Sequential reaction between Bi2Ti4O11 and Bi2O3 resultedin the formation of Bi4Ti3O12 phase with tetragonal structure at about 644℃, and stable Bi4Ti3O12 phase with orthorhombic structure was finally formed at about 830℃.
Keywords:bismuth titanate  ferroelectric material  sol-gel  amorphous  crystallization behavior
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《物理学报》浏览原始摘要信息
点击此处可从《物理学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号