Composition-independent Curie point (Tc) in ferroelectric (1-x)PbTiO3-xBi(Li1/2Nb1/2)O3 solid solution

被引：0
|
作者：
Kumar, Niraj [1 ]
Kumari, Ekta [1 ]
Krishna, P. Siva Ram [2 ]
Kalyani, Ajay Kumar [1 ]
机构：
[1] Indian Inst Technol Patna, Dept Met & Mat Engn, Patna 801106, Bihar, India
[2] Bhabha Atom Res Ctr, Solid State Phys Div, Mumbai, Maharashtra, India
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2023年 / 106卷 / 01期
关键词：
ferroelectricity; ferroelectric materials; piezoelectric materials; properties; polycrystalline materials; MORPHOTROPIC PHASE-BOUNDARY; SYSTEM;
D O I：
10.1111/jace.18748
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A new ferroelectric solid solution (1 - x)PbTiO3-xBi(Li1/2Nb1/2)O-3 has been explored to develop high-temperature piezoelectric material. An interesting observation has been found regarding its Curie point (T-C) and tetragonal lattice strain (c/a - 1). With increasing composition (x), the Curie point (T-C) decreases up to x = 0.10 and thereafter remains constant. In concurrence with the T-C, the tetragonal lattice strain (c/a - 1) follows a similar trend. Neutron powder diffraction analysis suggests this anomalous behavior is due to the robust off-centering characteristic of the Bi+3 ion 6S(2) lone pair effect at the A-site compared to ions at B-site.
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收藏
页码：430 / 437
页数：8
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