Dielectric properties of lead-free solid solution of Bi 0.487Na0.487La0.017TiO3 and BaTiO3

Bismuth sodium titanate (Bi0.5Na0.5TiO3; BNT) is one of the most preferred materials for the preparation of lead-free ceramics; however its dielectric property is lower than that of lead-based materials. Thus, the substitution of A and B-site cations is considered to be one of the best solutions in...

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Main Authors: Pisitpipathsin N., Pengpat K., Kantha P., Leenakul W., Eitsayeam S., Rujijanakul G., Tunkasiri T.
Format: Conference or Workshop Item
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-78649354650&partnerID=40&md5=17b288725ddb891d5c0f209c191fd2fe
http://cmuir.cmu.ac.th/handle/6653943832/6204
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spelling th-cmuir.6653943832-62042014-08-30T03:23:57Z Dielectric properties of lead-free solid solution of Bi 0.487Na0.487La0.017TiO3 and BaTiO3 Pisitpipathsin N. Pengpat K. Kantha P. Leenakul W. Eitsayeam S. Rujijanakul G. Tunkasiri T. Bismuth sodium titanate (Bi0.5Na0.5TiO3; BNT) is one of the most preferred materials for the preparation of lead-free ceramics; however its dielectric property is lower than that of lead-based materials. Thus, the substitution of A and B-site cations is considered to be one of the best solutions in order to improve both the dielectric and piezoelectric properties. In this study, lead-free ceramics from bismuth sodium lanthanum titanate (Bi0.487Na0.487La 0.017TiO3; BNLT) and barium titanate (BaTiO3; BT) systems were prepared by a modified two-step mixed oxide method. BT powder was added to BNLT powder with the desired compositions of (1 - x)BNLT-xBT, where x = 0.00, 0.02, 0.04, 0.06, 0.08, and 0.10. It was found that the addition of BT in the BNLT improved the electrical properties of ceramics. Phase transition of rhombohedral to tetragonal structure was significantly dependent on the amount of BT added. It was also found that the change in crystal structure affected the ferroelectric property of the ceramics where the transition from ferroelectric to antiferroelectric started from the samples with x≥ 0.06 mol% and higher. This may be useful in terms of using these materials in the desired applications. © 2010 Taylor & Francis. 2014-08-30T03:23:57Z 2014-08-30T03:23:57Z 2010 Conference Paper 1411594 10.1080/01411594.2010.509165 PHTRD http://www.scopus.com/inward/record.url?eid=2-s2.0-78649354650&partnerID=40&md5=17b288725ddb891d5c0f209c191fd2fe http://cmuir.cmu.ac.th/handle/6653943832/6204 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
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language English
description Bismuth sodium titanate (Bi0.5Na0.5TiO3; BNT) is one of the most preferred materials for the preparation of lead-free ceramics; however its dielectric property is lower than that of lead-based materials. Thus, the substitution of A and B-site cations is considered to be one of the best solutions in order to improve both the dielectric and piezoelectric properties. In this study, lead-free ceramics from bismuth sodium lanthanum titanate (Bi0.487Na0.487La 0.017TiO3; BNLT) and barium titanate (BaTiO3; BT) systems were prepared by a modified two-step mixed oxide method. BT powder was added to BNLT powder with the desired compositions of (1 - x)BNLT-xBT, where x = 0.00, 0.02, 0.04, 0.06, 0.08, and 0.10. It was found that the addition of BT in the BNLT improved the electrical properties of ceramics. Phase transition of rhombohedral to tetragonal structure was significantly dependent on the amount of BT added. It was also found that the change in crystal structure affected the ferroelectric property of the ceramics where the transition from ferroelectric to antiferroelectric started from the samples with x≥ 0.06 mol% and higher. This may be useful in terms of using these materials in the desired applications. © 2010 Taylor & Francis.
format Conference or Workshop Item
author Pisitpipathsin N.
Pengpat K.
Kantha P.
Leenakul W.
Eitsayeam S.
Rujijanakul G.
Tunkasiri T.
spellingShingle Pisitpipathsin N.
Pengpat K.
Kantha P.
Leenakul W.
Eitsayeam S.
Rujijanakul G.
Tunkasiri T.
Dielectric properties of lead-free solid solution of Bi 0.487Na0.487La0.017TiO3 and BaTiO3
author_facet Pisitpipathsin N.
Pengpat K.
Kantha P.
Leenakul W.
Eitsayeam S.
Rujijanakul G.
Tunkasiri T.
author_sort Pisitpipathsin N.
title Dielectric properties of lead-free solid solution of Bi 0.487Na0.487La0.017TiO3 and BaTiO3
title_short Dielectric properties of lead-free solid solution of Bi 0.487Na0.487La0.017TiO3 and BaTiO3
title_full Dielectric properties of lead-free solid solution of Bi 0.487Na0.487La0.017TiO3 and BaTiO3
title_fullStr Dielectric properties of lead-free solid solution of Bi 0.487Na0.487La0.017TiO3 and BaTiO3
title_full_unstemmed Dielectric properties of lead-free solid solution of Bi 0.487Na0.487La0.017TiO3 and BaTiO3
title_sort dielectric properties of lead-free solid solution of bi 0.487na0.487la0.017tio3 and batio3
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-78649354650&partnerID=40&md5=17b288725ddb891d5c0f209c191fd2fe
http://cmuir.cmu.ac.th/handle/6653943832/6204
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