Effects of glass additions on the dielectric properties and energy storage performance of Pb^sub 0.97^La^sub 0.02^(Zr^sub 0.56^Sn^sub 0.35^Ti^sub 0.09^)O3 antiferroelectric ceramics

• Published in: Journal of materials science. Materials in electronics 2013-12, Vol.24 (12), p.4764
• Main Authors: Chen, Shengchen, Yang, Tongqing, Wang, Jinfei, Yao, Xi
• Format: Article
• Language: English
• ISSN: 0957-4522; 1573-482X
• DOI: 10.1007/s10854-013-1471-0

In this work, CdO-Bi^sub 2^O3-PbO-ZnO-Al^sub 2^O3-B^sub 2^O3-SiO2 low softening point glass powders were prepared and employed as sintering aid to improve the dielectric breakdown strength and reduce the sintering temperature of Pb^sub 0.97^La^sub 0.02^(Zr^sub 0.56^Sn^sub 0.35^Ti^sub 0.09^)O3 antiferroelectric ceramics. The effects of glass content and sintering temperature on the densification, microstructure, dielectric properties and energy storage performance of Pb^sub 0.97^La^sub 0.02^(Zr^sub 0.56^Sn^sub 0.35^Ti^sub 0.09^)O3 antiferroelectric ceramics have been investigated. With inclusion of glass, sintered densities comparable to those obtained by conventional sintering are achieved at only 1,050 °C. The breakdown strength of glass-added samples was notably improved due to the reduction of the grain size. The antiferroelectric to ferroelectric switching field and the ferroelectric to antiferroelectric field both increased with increasing glass content. The dielectric constant and dielectric loss decreased gradually with increasing glass content. As a result, the highest recoverable energy density of 3.3 J/cm^sup 3^ with an energy efficiency of 80 % was achieved in 4 wt% glass-added sample sintered at 1,130 °C.[PUBLICATION ABSTRACT]