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http://dx.doi.org/10.4313/JKEM.2015.28.2.80

Dielectric Relaxation Properties of 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 Ceramics with CuO Addition  

Bae, Seon Gi (Department of Electrical Engineering, Incheon National University)
Shin, Hyea-Kyoung (Department of Electrical Engineering, Incheon National University)
Lee, Suk-Jin (Department of Digital Information Communication, Ansan University)
Im, In-Ho (Department of Electrical Engineering, Shinansan University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.28, no.2, 2015 , pp. 80-84 More about this Journal
Abstract
We investigated the dielectric relaxation properties $0.5Ba(Zr_{0.2}Ti_{0.8})O_3-0.5(Ba_{0.7}Ca_{0.3})TiO_3$ ceramics with CuO addition. With increasing CuO addition, the lattice parameter was increased by substitution of small amount $Cu^{2+}$ ion in B-site of $0.5Ba(Zr_{0.2}Ti_{0.8})O_3-0.5(Ba_{0.7}Ca_{0.3})TiO_3$ ceramics. Also the grain size and the maximum dielectric constant of $0.5Ba(Zr_{0.2}Ti_{0.8})O_3-0.5(Ba_{0.7}Ca_{0.3})TiO_3$ ceramics was decreased with increasing amounts of CuO addition. Moreover, the diffused phase transition properties (${\gamma}$) of $0.5Ba(Zr_{0.2}Ti_{0.8})O_3-0.5(Ba_{0.7}Ca_{0.3})TiO_3$ ceramics was increased by compositional fluctuation with increasing of CuO amount, changed from 1.45 at 1 wt% CuO addition to 1.94 at 7 wt% CuO addition.
Keywords
BZT-BCT; Relaxation; CuO addition; Diffused phase transition; Curie weiss law;
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1 Z. G. Ye and H. Schmid, Ferroelectrics, 145, 83 (1993).   DOI
2 J. Ravez, C. Broustera, and A. Simon, J. Mater. Chem., 9, 1609 (1999).   DOI
3 S. Su, R. Zuo, S. Lu, Z. Xu, X. Wang, and L. Li, Current Appl. Phys., 11, S120 (2011).
4 V. V. Shvartsman and D. C. Lupascu, J. Am. Ceram. Soc., 95, 1 (2012).   DOI
5 I. H. IM and K. H. Chung, J. Nanosci. Nanotechnol., 14, 12 (2014).
6 S. G. Bae, H. K. Shin, S. H. Lee, and I. H. Im, J. KIEEME, 27, 367 (2014).
7 D. Liang, X. Zhu, J. Zhu, J. Zhu, and D. Xiao, Ceramic International, 40, 2585 (2014).   DOI
8 S. Su, R. Zuo, X. Wang, and L. Li, Materials Research Bulletin, 45, 124 (2010).   DOI
9 K. Uchino and S. Nomura, Integr. Ferroelectric, 44, 55 (1982).   DOI
10 H. Yu and Z. G. Ye, J. Appl. Phys., 103, 034114 (2008).   DOI