A role of BNLT compound addition on structure and properties of PZT ceramics

In this research, effects of lead-free bismuth sodium lanthanum titanate (BNLT) addition on structure and properties of lead zirconate titanate (PZT) ceramics were investigated. PZT ceramics with addition of 0.1-3.0 wt%BNLT were fabricated by a solid-state mixed oxide method and sintering at 1050-12...

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Main Authors: Jaita P., Watcharapasorn A., Jiansirisomboon S.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-77956056272&partnerID=40&md5=c11f07b58948781f9f39965813ab4f10
http://cmuir.cmu.ac.th/handle/6653943832/6213
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-62132014-08-30T03:23:58Z A role of BNLT compound addition on structure and properties of PZT ceramics Jaita P. Watcharapasorn A. Jiansirisomboon S. In this research, effects of lead-free bismuth sodium lanthanum titanate (BNLT) addition on structure and properties of lead zirconate titanate (PZT) ceramics were investigated. PZT ceramics with addition of 0.1-3.0 wt%BNLT were fabricated by a solid-state mixed oxide method and sintering at 1050-1200 °C for 2 h to obtain dense ceramics with at least 96% of theoretical density. X-ray diffraction indicated that complete solid solution occurred for all compositions. Phase identification showed both tetragonal and rhombohedral perovskite structure of PZT with no BNLT phase detected. Scanning electron micrographs of fractured PZT/BNLT ceramics showed equiaxed grain shape with both transgranular and intergranular fracture modes. Addition of BNLT was also found to reduce densification and effectively limited grain growth of PZT ceramic. Optimum Hv and KIC values were found to be 4.85 GPa and 1.56 MPa.m1/2 for PZT/0.5 wt%BNLT sample. Among PZT/BNLT samples, room temperature dielectric constant seemed to be improved with increasing BNLT content. The maximum piezoelectric coefficient values were observed in pure PZT ceramic and were slightly decreased in BNLT-added samples. Small reduction of remanent polarization and coercive field in hysteresis loops was observed in BNLT-added samples, indicating a slightly suppressed ferroelectric interaction in this material system. © 2010 Elsevier Masson SAS. All rights reserved. 2014-08-30T03:23:58Z 2014-08-30T03:23:58Z 2010 Article 12932558 10.1016/j.solidstatesciences.2010.07.008 SSSCF http://www.scopus.com/inward/record.url?eid=2-s2.0-77956056272&partnerID=40&md5=c11f07b58948781f9f39965813ab4f10 http://cmuir.cmu.ac.th/handle/6653943832/6213 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description In this research, effects of lead-free bismuth sodium lanthanum titanate (BNLT) addition on structure and properties of lead zirconate titanate (PZT) ceramics were investigated. PZT ceramics with addition of 0.1-3.0 wt%BNLT were fabricated by a solid-state mixed oxide method and sintering at 1050-1200 °C for 2 h to obtain dense ceramics with at least 96% of theoretical density. X-ray diffraction indicated that complete solid solution occurred for all compositions. Phase identification showed both tetragonal and rhombohedral perovskite structure of PZT with no BNLT phase detected. Scanning electron micrographs of fractured PZT/BNLT ceramics showed equiaxed grain shape with both transgranular and intergranular fracture modes. Addition of BNLT was also found to reduce densification and effectively limited grain growth of PZT ceramic. Optimum Hv and KIC values were found to be 4.85 GPa and 1.56 MPa.m1/2 for PZT/0.5 wt%BNLT sample. Among PZT/BNLT samples, room temperature dielectric constant seemed to be improved with increasing BNLT content. The maximum piezoelectric coefficient values were observed in pure PZT ceramic and were slightly decreased in BNLT-added samples. Small reduction of remanent polarization and coercive field in hysteresis loops was observed in BNLT-added samples, indicating a slightly suppressed ferroelectric interaction in this material system. © 2010 Elsevier Masson SAS. All rights reserved.
format Article
author Jaita P.
Watcharapasorn A.
Jiansirisomboon S.
spellingShingle Jaita P.
Watcharapasorn A.
Jiansirisomboon S.
A role of BNLT compound addition on structure and properties of PZT ceramics
author_facet Jaita P.
Watcharapasorn A.
Jiansirisomboon S.
author_sort Jaita P.
title A role of BNLT compound addition on structure and properties of PZT ceramics
title_short A role of BNLT compound addition on structure and properties of PZT ceramics
title_full A role of BNLT compound addition on structure and properties of PZT ceramics
title_fullStr A role of BNLT compound addition on structure and properties of PZT ceramics
title_full_unstemmed A role of BNLT compound addition on structure and properties of PZT ceramics
title_sort role of bnlt compound addition on structure and properties of pzt ceramics
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-77956056272&partnerID=40&md5=c11f07b58948781f9f39965813ab4f10
http://cmuir.cmu.ac.th/handle/6653943832/6213
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