Effect of calcium substitution on structural, dielectric, ferroelectric, piezoelectric, and energy storage properties of BaTiO3

被引：25
作者：
Borkar, Shilpa N. [1 ]
Aggarwal, Preeti [1 ]
Deshpande, V. K. [1 ]
机构：
[1] Visvesvaraya Natl Inst Technol, Dept Phys, South Ambazari Rd, Nagpur 440010, Maharashtra, India
来源：
CURRENT APPLIED PHYSICS | 2022年 / 39卷
关键词：
Solid-state reaction; Grain size; Ferroelectric properties; Energy storage application; DIFFUSE PHASE-TRANSITION; IMPEDANCE SPECTROSCOPY; BARIUM-TITANATE; CERAMICS; BEHAVIOR; FIELD; (BA;
D O I：
10.1016/j.cap.2022.05.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of calcium substitution on the structural, dielectric, ferroelectric, piezoelectric, and energy storage properties of BaTiO3 (BT) ceramics has been investigated. XRD confirmed the phase formation of Barium Calcium Titanate (BCT), and structural Rietveld refinement was used to estimate the lattice parameters. It is evident from the SEM data that the average grain size decreases as calcium is added. At Curie temperature (110 degrees C), BCT 0.10 ceramic has a good dielectric constant of 15834 and a very low dielectric loss of 0.009. According to the ferroelectric and piezoelectric investigations, BCT 0.10 exhibits maximum spontaneous polarization with the highest piezoelectric charge coefficient of 100 pC/N. BCT 0.10 has a maximum energy storage density of 96.8 mJ/cm(3) and a good energy storage efficiency of 53.9%, which is around three times that of pure BaTiO3. These results suggest that the BCT ceramic has good potential for energy storage applications.
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收藏
页码：205 / 213
页数：9
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