Effects of sintering temperature on the electric properties of Mn-modified BiFeO3-BaTiO3 bulk ceramics

被引：25
作者：
Kim, D. J. [1 ]
Lee, M. H. [1 ]
Park, J. S. [1 ]
Kim, M-H. [1 ]
Song, T. K. [1 ]
Kim, W. -J. [2 ]
Jang, K. W. [2 ]
Kim, S. S. [2 ]
Do, D. [3 ]
机构：
[1] Changwon Natl Univ, Sch Adv Mat Engn, Chang Won 641773, South Korea
[2] Changwon Natl Univ, Dept Phys, Chang Won 641773, South Korea
[3] Keimyung Univ, Dept Adv Mat Engn, Daegu 704701, South Korea
来源：
JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2015年 / 66卷 / 07期
基金：
新加坡国家研究基金会;
关键词：
BiFeO3-BaTiO3; Mn-modified; Piezoelectric; Ferroelectric; Polarization; BIFEO3; THIN-FILMS; PIEZOELECTRIC PROPERTIES; FERROELECTRIC PROPERTIES; MICROSTRUCTURE; POLARIZATION;
D O I：
10.3938/jkps.66.1115
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Mn-modified 0.67Bi(1.05)FeO(3)-0.33BaTiO(3) ceramics were prepared via a solid-state reaction process by using a quenching method after a sintering process at various temperatures. We obtained ceramics with improved electric properties within a narrow sintering temperature range. At the optimized sintering temperature of 990 A degrees C, improved ferroelectric and piezoelectric properties were observed in the 1-mol% Mn-modified ceramic. The small-field and the large-field piezoelectric constants (d (33) and d (33)*) were 135 pC/N and 250 pm/V, respectively, and the leakage current density was about 2.4 x 10(-7) A/cm(2). The remnant polarization (P (r) ) and the coercive field (E (c) ) were 29 mu C/cm(2) and 28 kV/cm, respectively.
引用
收藏
页码：1115 / 1119
页数：5
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