Please use this identifier to cite or link to this item: http://cmuir.cmu.ac.th/jspui/handle/6653943832/59677
Title: Effects of niobium doping on dielectric and ferroelectric properties of chromium modified lead zirconate titanate ceramics
Authors: P. Ketsuwan
Anurak Prasatkhetragarn
N. Triamnuk
C. C. Huang
A. Ngamjarurojana
S. Ananta
D. P. Cann
R. Yimnirun
Keywords: Materials Science
Physics and Astronomy
Issue Date: 1-Dec-2009
Abstract: Effects of niobium doping on dielectric and ferroelectric properties of unmodified lead zirconate titanate (PZT) and chromium modified lead zirconate titanate (Cr-modified PZT) have been investigated. The x-ray structural study shows the phase formed depending on the dopant concentrations with increasing the doping content tending to an increase in the rhombohedral phase in both of PZT and Cr-modified PZT ceramics. Furthermore, the Curie temperature (Tc) and dielectric constant are decreased with increasing Nb concentration and the dielectric loss of Cr-modified PZT ceramics is lower than that of the PZT ceramics. From the hysteresis loop measurements, by increasing Nb concentration, the unmodified PZT ceramics show increase in the coercive field, while the remnant polarization decreases slightly. However, coercive field decreases, and the remanent polarization tends to increase with increasing niobium concentration from 1-3 mol% in Cr-modified PZT ceramics. Further increase in niobium concentration results in a drop of the remanent polarization and the coercive field. Copyright © Taylor & Francis Group, LLC.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77749344609&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/59677
ISSN: 15635112
00150193
Appears in Collections:CMUL: Journal Articles

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