The effect of Zr content on electrical properties of Ba(Ti 1-xZrx)O3 ceramics

The effect of Zr content on the crystal structure and electrical properties of barium zirconate titanate (Ba(Zr,Ti)O3) was studied by X-ray diffraction and dielectric, ferroelectric and impedance spectroscopy. An increase of Zr content into BaTiO3 leads to a reduction in its c-parameter and an incre...

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Main Authors: Sawangwan N., Barrel J., MacKenzie K., Tunkasiri T.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-38549111242&partnerID=40&md5=7f9ec03ad4774f613747b7f621ee50be
http://cmuir.cmu.ac.th/handle/6653943832/5604
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-56042014-08-30T02:56:43Z The effect of Zr content on electrical properties of Ba(Ti 1-xZrx)O3 ceramics Sawangwan N. Barrel J. MacKenzie K. Tunkasiri T. The effect of Zr content on the crystal structure and electrical properties of barium zirconate titanate (Ba(Zr,Ti)O3) was studied by X-ray diffraction and dielectric, ferroelectric and impedance spectroscopy. An increase of Zr content into BaTiO3 leads to a reduction in its c-parameter and an increase in its a-parameter, resulting in a change from tetragonal to cubic symmetry of the BaTiO3 unit cell. The Curie temperatures are lowered and the relative permittivity values are decreased with increasing Zr content. The presence of BaZrO3 secondary phases has the affect of decreasing tanδ. A higher applied electric field is required during the polarization process because of the effect of domain-wall pinning caused by oxygen vacancies. Impedance spectroscopy studies of Ba(Ti 0.95Zr0.05)O3 ceramics show a decrease in the bulk resistance with increasing temperature, indicating a typical negative temperature coefficient of resistance. © 2007 Springer-Verlag. 2014-08-30T02:56:43Z 2014-08-30T02:56:43Z 2008 Article 09478396 10.1007/s00339-007-4342-9 APAMF http://www.scopus.com/inward/record.url?eid=2-s2.0-38549111242&partnerID=40&md5=7f9ec03ad4774f613747b7f621ee50be http://cmuir.cmu.ac.th/handle/6653943832/5604 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description The effect of Zr content on the crystal structure and electrical properties of barium zirconate titanate (Ba(Zr,Ti)O3) was studied by X-ray diffraction and dielectric, ferroelectric and impedance spectroscopy. An increase of Zr content into BaTiO3 leads to a reduction in its c-parameter and an increase in its a-parameter, resulting in a change from tetragonal to cubic symmetry of the BaTiO3 unit cell. The Curie temperatures are lowered and the relative permittivity values are decreased with increasing Zr content. The presence of BaZrO3 secondary phases has the affect of decreasing tanδ. A higher applied electric field is required during the polarization process because of the effect of domain-wall pinning caused by oxygen vacancies. Impedance spectroscopy studies of Ba(Ti 0.95Zr0.05)O3 ceramics show a decrease in the bulk resistance with increasing temperature, indicating a typical negative temperature coefficient of resistance. © 2007 Springer-Verlag.
format Article
author Sawangwan N.
Barrel J.
MacKenzie K.
Tunkasiri T.
spellingShingle Sawangwan N.
Barrel J.
MacKenzie K.
Tunkasiri T.
The effect of Zr content on electrical properties of Ba(Ti 1-xZrx)O3 ceramics
author_facet Sawangwan N.
Barrel J.
MacKenzie K.
Tunkasiri T.
author_sort Sawangwan N.
title The effect of Zr content on electrical properties of Ba(Ti 1-xZrx)O3 ceramics
title_short The effect of Zr content on electrical properties of Ba(Ti 1-xZrx)O3 ceramics
title_full The effect of Zr content on electrical properties of Ba(Ti 1-xZrx)O3 ceramics
title_fullStr The effect of Zr content on electrical properties of Ba(Ti 1-xZrx)O3 ceramics
title_full_unstemmed The effect of Zr content on electrical properties of Ba(Ti 1-xZrx)O3 ceramics
title_sort effect of zr content on electrical properties of ba(ti 1-xzrx)o3 ceramics
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-38549111242&partnerID=40&md5=7f9ec03ad4774f613747b7f621ee50be
http://cmuir.cmu.ac.th/handle/6653943832/5604
_version_ 1681420456889942016