Extended X-ray absorption fine structure and X-ray diffraction studies of Mn-doped PZN-PZT ceramics

Extended X-ray absorption fine structure and X-ray diffraction studies of Mn-doped PZN-PZT ceramics

In this work, the selected compositions of a combination between perovskite piezoelectric ceramics lead zinc niobate (PZN) and lead zirconate titanate (PZT), close to the morphotropic phase boundary (MPB) i.e. the 0.2PZN-0.8PZT, doped with MnO2 concentrations of 0.0-0.9 wt% were fabricated by a simp...

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Main Authors: Ngamjarurojana A., Srisombat L.-O., Yimnirun R., Ananta S.
Format: Conference or Workshop Item
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-79955693655&partnerID=40&md5=b7e54c289ec5807c4f601c1e3641890b
http://cmuir.cmu.ac.th/handle/6653943832/6151
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-61512014-08-30T03:23:53Z Extended X-ray absorption fine structure and X-ray diffraction studies of Mn-doped PZN-PZT ceramics Ngamjarurojana A. Srisombat L.-O. Yimnirun R. Ananta S. In this work, the selected compositions of a combination between perovskite piezoelectric ceramics lead zinc niobate (PZN) and lead zirconate titanate (PZT), close to the morphotropic phase boundary (MPB) i.e. the 0.2PZN-0.8PZT, doped with MnO2 concentrations of 0.0-0.9 wt% were fabricated by a simple solid-state reaction and a pressureless sintering techniques. X-ray diffraction (XRD) spectra from these materials reveal transformation of the tetragonal into the rhombohedral structure. The local structure of Mn was analyzed by mean of synchrotron extended X-ray absorption fine structure (EXAFS) measurements at the Mn K-edge. The correlation between the structural changes and the Mn content was analyzed and compared. The EXAFS analysis indicates that Mn ions should occupy the B-sites in PZN-PZT structure and plays a critical role for the hard ferroelectric behavior of the materials. 2014-08-30T03:23:53Z 2014-08-30T03:23:53Z 2010 Conference Paper 150193 10.1080/00150193.2010.482888 83787 FEROA http://www.scopus.com/inward/record.url?eid=2-s2.0-79955693655&partnerID=40&md5=b7e54c289ec5807c4f601c1e3641890b http://cmuir.cmu.ac.th/handle/6653943832/6151 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description In this work, the selected compositions of a combination between perovskite piezoelectric ceramics lead zinc niobate (PZN) and lead zirconate titanate (PZT), close to the morphotropic phase boundary (MPB) i.e. the 0.2PZN-0.8PZT, doped with MnO2 concentrations of 0.0-0.9 wt% were fabricated by a simple solid-state reaction and a pressureless sintering techniques. X-ray diffraction (XRD) spectra from these materials reveal transformation of the tetragonal into the rhombohedral structure. The local structure of Mn was analyzed by mean of synchrotron extended X-ray absorption fine structure (EXAFS) measurements at the Mn K-edge. The correlation between the structural changes and the Mn content was analyzed and compared. The EXAFS analysis indicates that Mn ions should occupy the B-sites in PZN-PZT structure and plays a critical role for the hard ferroelectric behavior of the materials.
format Conference or Workshop Item
author Ngamjarurojana A.
Srisombat L.-O.
Yimnirun R.
Ananta S.
spellingShingle Ngamjarurojana A.
Srisombat L.-O.
Yimnirun R.
Ananta S.
Extended X-ray absorption fine structure and X-ray diffraction studies of Mn-doped PZN-PZT ceramics
author_facet Ngamjarurojana A.
Srisombat L.-O.
Yimnirun R.
Ananta S.
author_sort Ngamjarurojana A.
title Extended X-ray absorption fine structure and X-ray diffraction studies of Mn-doped PZN-PZT ceramics
title_short Extended X-ray absorption fine structure and X-ray diffraction studies of Mn-doped PZN-PZT ceramics
title_full Extended X-ray absorption fine structure and X-ray diffraction studies of Mn-doped PZN-PZT ceramics
title_fullStr Extended X-ray absorption fine structure and X-ray diffraction studies of Mn-doped PZN-PZT ceramics
title_full_unstemmed Extended X-ray absorption fine structure and X-ray diffraction studies of Mn-doped PZN-PZT ceramics
title_sort extended x-ray absorption fine structure and x-ray diffraction studies of mn-doped pzn-pzt ceramics
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-79955693655&partnerID=40&md5=b7e54c289ec5807c4f601c1e3641890b
http://cmuir.cmu.ac.th/handle/6653943832/6151
_version_ 1681420559970205696

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