Effect of anatase and rutile phases of TiO2 and sintering in the properties of BaTiO3

被引：0
|
作者：
Salvi, S. V. [1 ]
Joshi, V. H. [1 ]
Khandpekar, M. M. [1 ]
机构：
[1] Birla Coll, Dept Phys, Phys Mat Lab, Bombay 421304, Maharashtra, India
来源：
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES | 2008年 / 78A卷
关键词：
ferroelectric; tetragonal phase; anatase; rutile; barium titanate;
D O I：
暂无
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Samples of BaTiO3 using sintering in steps and also direct sintering, with rutile and anatase phases of TiO2, are synthesized by solid state ceramic technique. The single tetragonal phase formation was confirmed using the standard XRD technique and FTIR spectrum. The characteristic tetragonal splitting of 002/200 XRD peaks also Supports the tetragonal symmetry The tetragonality, however, differs for different samples. SEM micrographs show larger grain size for the anatase samples. All the samples exhibit classical ferroelectric behaviour with a Curie temperature at 126(0) C.
引用
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页码：237 / 244
页数：8
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