Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17023
Title: Correlation of grain size, phase transition and piezoelectric properties in Ba0.85Ca0.15Ti0.90Zr0.10 O3 ceramics
Authors: Sun, HL
Zheng, QJ
Wan, Y
Chen, Y
Wu, X
Kwok, KW 
Chan, HLW 
Lin, DM
Issue Date: 2015
Publisher: Springer New York LLC
Source: Journal of materials science : materials in electronics, 2015, v. 26, no. 7, p. 5270-5278 How to cite?
Journal: Journal of Materials Science: Materials in Electronics 
Abstract: Pb-free ceramics Ba0.85Ca0.15Ti0.90Zr0.10O3 inspired by the excellent piezoelectricity of morphotropic phase boundary deriving from a tricritical point have been prepared by a solid state reaction route and the effects of grain size and room-temperature phases of the ceramics have been studied in detail. When sintering temperature rises from 1320 to 1560 °C with controlling the dwell time for 2 h, the ceramic sintered at 1480 °C possesses the optimum piezoelectricity. We choose 1360 and 1480 °C as two distinctive sintering temperatures to further study the effect of dwell time on the electrical properties of the ceramics. The results show that the improved piezoelectric behavior (d33 ~ 416 pC/N and kp ~ 55.8 %) is demonstrated for the Ba0.85Ca0.15Ti0.90Zr0.10O3 ceramic at an optimal sintering temperature of 1480 °C and dwell time of 2 h, which is attributed to the largest grain size together with more noticeable rhombohedral–tetragonal phase transition near room-temperature.
URI: http://hdl.handle.net/10397/17023
ISSN: 0957-4522
DOI: 10.1007/s10854-015-3063-7
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