Paper Title:
Dielectric Relaxation in (Ba0.7Ca 0.3)TiO3-Ba(Zr0.2Ti 0.8)O3 Ceramics
  Abstract

In this work, effect of low sintering temperature and time on the new lead-free perovskite (Ba0.7Ca0.3)TiO3-Ba(Zr0.2Ti0.8)O3 (BCZT) solid solution ceramics have been investigated. X-ray diffraction (XRD) was used to understand the phase transition of the BCZT during heating. The Curie temperature decreased nonlinearly 43 K in BCZT ceramics. Diffuse phase transitions were observed in BCZT ceramics and the Curie-Weiss exponent (CWE) was nearly 2. The dielectric permittivity versus temperature characteristics and the γ in the modified Curie-Weiss law, as a function of the dc bias field was obtained for BCZT ceramics. The fitting of parameters (Tm vs. f ) have close agreement with the data of Vogel-Fulcher’s relationship.

  Info
Periodical
Advanced Materials Research (Volumes 287-290)
Chapter
New Functional Materials
Edited by
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Pages
503-508
DOI
10.4028/www.scientific.net/AMR.287-290.503
Citation
S. G. Ju, X. G. Tang, J. B. Wu, Y. P. Jiang, Q. X. Liu, "Dielectric Relaxation in (Ba0.7Ca 0.3)TiO3-Ba(Zr0.2Ti 0.8)O3 Ceramics", Advanced Materials Research, Vols. 287-290, pp. 503-508, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Man Soon Yoon, Soon Chul Ur
Abstract:Since the discovery of relaxor behavior in Pb(Mg 1/3 Nb 2/3 )O3 (referred to as PMN), the studies of relaxor ferroelectrics with...
542
Authors: Ho Hua Chung, Cheng Fu Yang, Yi Chang Chung, Cheng Yuan Kung
Abstract:In this study, ferroelectric materials with Bi-layered structure BaBi2Nb2O9 with excess x wt% Bi2O3 (x=0, 1.5, and 3) are investigated as...
188
Authors: Yu Hua Feng, Tie Zheng Pan, Xiang Qian Shen, Hao Jie Song, Li Ping Guo
Abstract:Piezoelectric ceramics with appropriate curie temperatures and high dielectric and piezoelectric performances are attractive for formations...
103
Authors: Zhan Shen Zheng, Hong Kui Hu, Rui Jiao Li, Pei Qi Yan, Yuan Liang Li, Lei Xu
Abstract:It is important to develop a new special material to meet the requirement of advanced industry. The BST...
1027
Authors: Wei Cai, Chun Lin Fu, Jia Cheng Gao, Xiao Ling Deng, Wei Hai Jiang, Ze Bin Lin
Abstract:Pure and Hf-doped BaZr0.2Ti0.8O3 (short for BZT) ceramics are prepared by a conventional solid state...
263