Single-crystal lead titanate perovskite dendrites derived from single-crystal lead titanate pyrochlore dendrites by phase transition at elevated temperature

被引：8
作者：
Xu, Gang [1 ,2 ,3 ]
Zhang, Yanfang [1 ,2 ]
He, Wanbo [1 ,2 ]
Zhao, Yan-Gang [3 ]
Liu, Yong [1 ,2 ]
Shen, Ge [1 ,2 ]
Han, Gaorong [1 ,2 ]
机构：
[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China
[2] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China
[3] Kanagawa Univ, Dept Architecture, Kanagawa Ku, Yokohama, Kanagawa 2218686, Japan
来源：
JOURNAL OF CRYSTAL GROWTH | 2012年 / 346卷 / 01期
基金：
浙江省自然科学基金;
关键词：
Characterization; Crystal morphology; Dendrites; Perovskite; Titanium compound; HYDROTHERMAL SYNTHESIS; PBTIO3; GROWTH; ROUTE; NANOSTRUCTURES; MORPHOLOGY; SHAPE;
D O I：
10.1016/j.jcrysgro.2012.02.016
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Single-crystal lead titanate perovskite dendrites were derived from single-crystal lead titanate pyrochlore dendrites by phase transition at elevated high temperature. The phase transition and morphology preservation of the lead titanate dendrites from pyrochlore structure to perovskite structure have been investigated. X-ray diffraction (XRD), selective area electron diffraction (SAED), and high resolution transmission electron microscopy (HRTEM) were employed to characterize the phase composition and crystal structure, field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) to observe the morphology, and differential temperature analysis/thermogravimetric analysis (DTA/TG) to investigate the thermal behavior. Based on the experimental results, the reasons for the preservation of the dendrite feature after phase transition were discussed. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：101 / 105
页数：5
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