Affiliation:
1. University of Jammu, Department of Physics and Electronics, Crystal Growth & Materials Research Laboratory, Jammu, India
Abstract
The solid solutions of lead nickel niobate (PNN) and lead zirconate titanate
(PZT), with general formula 0.5 Pb(NixNb1-x)O3-0.5 PZT, where x = 1/3, 1/2
and 2/3 and Zr/Ti = 50/50, were prepared by conventional solid state
reaction technique. The perovskite phase formation and morphology were
examined by powder X-ray diffraction (XRD) and scanning electron microscopy
(SEM) techniques. From microstructure investigations, the grain size was
found to lie in the range of 0.2-1.1 ?m. Diffuse phase transition and
dielectric relaxation was obtained for all three compositions. The nature of
dielectric relaxation was investigated through complex plane Argand plot or
Cole-Cole plot. It was found that both grains as well as grain boundary
contribute to dielectric relaxation. A direct correlation between the grain
size and electrical properties was obtained. The remnant polarization and
grain size were found to follow the inverse relationship. The inverse
relationship between remnant polarization and grain size was established.
Publisher
National Library of Serbia
Cited by
17 articles.
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