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Journal of Electroceramics

Published in:

01-12-2008

Enhanced piezoelectricity around the tetragonal/orthorhombic morphotropic phase boundary in (Na,K)NbO₃–ATiO₃ solid solutions

Authors: R. Wang, R.-J. Xie, K. Hanada, K. Matsusaki, H. Kawanaka, H. Bando, T. Sekiya, M. Itoh

Published in: Journal of Electroceramics | Issue 1-4/2008

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Abstract

The high density perovskite titanates-modified potassium–sodium niobate solid solutions (1−x)(Na_0.5K_0.5)NbO₃−xBaTiO₃ and (1−x)(Na_0.5K_0.5)NbO₃−xSrTiO₃ have been prepared by the solid state reaction method. The phase diagram summarized from the dielectric property measurement reveals that there exists a tetragonal/orthorhombic morphotropic phase boundary for both the solid solutions. The piezoelectric properties show enhanced behavior at around the tetragonal/orthorhombic morphotropic phase boundary. It is believed that the origin for the high piezoelectric performance (Na,K)NbO₃-based lead-free piezoelectric ceramics is the same as that for the lead zinc niobate-lead titanate solid solution.

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Title: Enhanced piezoelectricity around the tetragonal/orthorhombic morphotropic phase boundary in (Na,K)NbO3–ATiO3 solid solutions
Authors: R. Wang
R.-J. Xie
K. Hanada
K. Matsusaki
H. Kawanaka
H. Bando
T. Sekiya
M. Itoh
Publication date: 01-12-2008
Publisher: Springer US
Published in: Journal of Electroceramics / Issue 1-4/2008
Print ISSN: 1385-3449
Electronic ISSN: 1573-8663
DOI: https://doi.org/10.1007/s10832-007-9136-0

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