Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18832
Title: Relaxor behaviors and tunability in BaZr(0.35)Ti(0.65)O3 ceramics
Authors: Jiang, XP
Zeng, M
Chan, HLW 
Choy, CL 
Keywords: BaZr(0.35)Ti(0.65)O3
Dielectric properties
Diffuse phase transition
Tunability
Issue Date: 2006
Publisher: Elsevier
Source: Materials science and engineering. A, Structural materials : properties, microstructure and processing, 2006, v. 438-440, no. SPEC. ISS., p. 198-201 How to cite?
Journal: Materials science and engineering. A, Structural materials : properties, microstructure and processing 
Abstract: Barium zirconate titanate Ba(Zr0.35Ti0.65)O3 (BZT35) ceramics were prepared by solid state reaction. The diffuse phase transition of BZT35 ceramics was investigated. The temperature dependence of dielectric properties was measured in the frequency range from 100 Hz to 100 kHz. The broad dielectric anomaly accompanied with the shift of dielectric maximum toward a higher temperature with the increasing of frequency indicates the relaxor behaviors in the ceramic. The index of relaxation (γ) and the broadening parameter (Δ) were estimated from a linear fitting of the modified Curie-Weiss law. The value of γ = 1.91 and Δ = 44.9 K at 1 kHz indicates the strong relaxor nature. A remarkably good fitting to the Vogel-Fulcher relation further supports such a relaxor nature. High tenability obtained in BZT35 ceramics was investigated, which imply that the ceramic is promising materials for tunable capacitor applications.
URI: http://hdl.handle.net/10397/18832
ISSN: 0921-5093
EISSN: 1873-4936
DOI: 10.1016/j.msea.2006.02.109
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