Synthesis and electrical properties of (1−x)(Na0.5Bi0.5)TiO3−xBa(Mg0.5W0.5)O3 piezoelectric ceramics

(1−x)(Na0.5Bi0.5)TiO3−xBa(Mg0.5W0.5)O3 particles with x=0.00–0.08 were synthesized by a solvothermal approach at 230°C for 48h. The results of X-ray diffraction analysis revealed a rhombohedral–tetragonal morphotropic phase boundary (MPB) composition existed in the range of x=0.05–0.06 at room tempe...

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Bibliographic Details
Published in:Journal of Asian Ceramic Societies 2014-03, Vol.2 (1), p.20-26
Main Authors: Kimura, Takeshi, Yin, Shu, Dong, Qiang, Wu, Xiaoyong, Akita, Ryusuke, Hashimoto, Takatoshi, Sasaki, Atsushi, Aisawa, Shuji, Sato, Tsugio
Format: Article
Language:English
Subjects:
Morphotropic phase boundary (MPB)
Na0.5Bi0.5TiO3
Orientation
Piezoelectricity
Solvothermal approach
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Summary:(1−x)(Na0.5Bi0.5)TiO3−xBa(Mg0.5W0.5)O3 particles with x=0.00–0.08 were synthesized by a solvothermal approach at 230°C for 48h. The results of X-ray diffraction analysis revealed a rhombohedral–tetragonal morphotropic phase boundary (MPB) composition existed in the range of x=0.05–0.06 at room temperature. The ceramics around the phase boundary composition provide excellent piezoelectric properties, i.e., the highest piezoelectric constant, d33, (108pC/N) could be realized at x value of 0.05. By using a casting sintering method, the ceramics consisted of the oriented rod-like particles with condensed sintering body were obtained, and the piezoelectric properties could be improved to show such a high piezoelectric constant as d33=112pC/N at x value of 0.05.
ISSN:2187-0764
2187-0764
DOI:10.1016/j.jascer.2013.12.001