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Dielectric and Ferroelectric Properties of (K0.5Na0.5)(Nb1−xVx)O3 Ceramics
Abstract:
(K0.5Na0.5)(Nb1−xVx)O3 (KNNV) (x=0.02-0.16) lead-free piezoelectric ceramics have been prepared by a traditional sintering technique. The effect of V on the crystallographic structure, microstructure, dielectric and piezoelectric properties has been investigated. XRD studies showed the formation of perovskite-type structure with orthorhombic symmetry. Dielectric properties as a function of temperature were carried out. The Curie temperature TC and phase transition temperature of orthorhombic–tetragonal (TO–T) increased with the increase in V content. In contrast, the remanent polarization decreased with the increase in V substitution.
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1013-1016
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Online since:
December 2011
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© 2012 Trans Tech Publications Ltd. All Rights Reserved
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