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Title: Phase diagram and electrostrictive properties of Bi₀.₅Na₀.₅TiO₃-BaTiO₃-K₀.₅ Na₀.₅NbO₃ceramics
Authors: Zhang, Shantao
Yan, Feng
Yang, Bin
Cao, Wenwu
Subjects: Barium compounds
Bismuth compounds
Crystal structure
Internal stresses
Materials preparation
Phase diagrams
Potassium compounds
Sodium compounds
X-ray diffraction
Issue Date: 20-Sep-2010
Publisher: American Institute of Physics
Citation: Applied physics letters, 20 Sep. 2010, v. 97, no. 12, 122901, p. 1-3.
Abstract: Phase diagram of Bi₀.₅Na₀.₅TiO₃-BaTiO₃–K₀.₅Na₀.₅NbO₃ternary system has been analyzed and (0.94−x)BNT–0.06BT–xKNN (0.15≤ x ≤ 0.30) ceramics have been prepared and investigated. Pseudocubic structures were confirmed by x-ray diffractions and its preliminary Rietveld refinements. P-E, S-E, and S-P² profiles (where P, E, and S denote polarization, electric field, and strain, respectively) indicate electrostrictive behavior of all ceramics. The compositions with x=0.20 and 0.25 show pure electrostrictive characteristics. The dissipation energy, electrostrictive strain, and electrostrictive coefficient have been determined and compared with other lead-free and lead-containing electrostrictors. The electrostrictive coefficient can reach as high as 0.026 m⁴/C², about 1.5 times of the value of traditional Pb-based electrostrictors.
Description: DOI: 10.1063/1.3491839
Rights: © 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in S.T. Zhang et al., Appl. Phys. Lett. 97, 122901 (2010) and may be found at http://link.aip.org/link/?apl/97/122901
Type: Journal/Magazine Article
URI: http://hdl.handle.net/10397/2505
ISSN: 0003-6951 (print)
1077-3118 (online)
Appears in Collections:AP Journal/Magazine Articles

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