Effect of thermal energy on 90° domain switching characteristics of piezoelectric ceramic

Domain switching characteristics of a commercial lead zirconate titanate piezoelectric (PZT) ceramic at high temperature of 100℃ were investigated using an electron backscatter diffraction (EBSD) system. The PZT ceramic consisted of a tetragonal structure with grain size of about 5μm. To analyze the...

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Main Authors: Kohei BAMBA, Mitsuhiro OKAYASU
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2018-06-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/84/863/84_17-00570/_pdf/-char/en
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author Kohei BAMBA
Mitsuhiro OKAYASU
author_facet Kohei BAMBA
Mitsuhiro OKAYASU
author_sort Kohei BAMBA
collection DOAJ
description Domain switching characteristics of a commercial lead zirconate titanate piezoelectric (PZT) ceramic at high temperature of 100℃ were investigated using an electron backscatter diffraction (EBSD) system. The PZT ceramic consisted of a tetragonal structure with grain size of about 5μm. To analyze the domain switching characteristics, the EBSD analysis was carried out in the same region of the PZT ceramic before and after the heating process. From this analysis, it appeared that each grain is formed by three different domains with different ratio. The area ratio of the domain was altered after the heating process because of the 90° domain switching. To understand clearly the 90° domain switching characteristics, the domain modes were categorized with the angle between the poling direction and c-axis of the tetragonal structure. Although the domain mode was categorized, no clear switching pattern was clarified, i.e., domain switching occurred randomly. Such domain switching mode was attributed to the complicated thermal stress in the PZT ceramic. In order to clarify the domain switching pattern under the heating process, the switching characteristics were investigated in details, in which the grain, having different stress distribution, was selected. The grain selected was constrained in the wide area by the other grains and some region was non-constrained due to the vacancy. From this analysis, severity of domain switching depended on the stress level, e.g., the higher compressive stress, caused by the thermal expansion of the other grains, made the strong domain switching.
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spelling doaj.art-76a9c42d1ad2425b92d9b5db812d5adc2022-12-22T03:38:57ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612018-06-018486317-0057017-0057010.1299/transjsme.17-00570transjsmeEffect of thermal energy on 90° domain switching characteristics of piezoelectric ceramicKohei BAMBA0Mitsuhiro OKAYASU1Graduate School of Natural Science and Technology, Okayama UniversityGraduate School of Natural Science and Technology, Okayama UniversityDomain switching characteristics of a commercial lead zirconate titanate piezoelectric (PZT) ceramic at high temperature of 100℃ were investigated using an electron backscatter diffraction (EBSD) system. The PZT ceramic consisted of a tetragonal structure with grain size of about 5μm. To analyze the domain switching characteristics, the EBSD analysis was carried out in the same region of the PZT ceramic before and after the heating process. From this analysis, it appeared that each grain is formed by three different domains with different ratio. The area ratio of the domain was altered after the heating process because of the 90° domain switching. To understand clearly the 90° domain switching characteristics, the domain modes were categorized with the angle between the poling direction and c-axis of the tetragonal structure. Although the domain mode was categorized, no clear switching pattern was clarified, i.e., domain switching occurred randomly. Such domain switching mode was attributed to the complicated thermal stress in the PZT ceramic. In order to clarify the domain switching pattern under the heating process, the switching characteristics were investigated in details, in which the grain, having different stress distribution, was selected. The grain selected was constrained in the wide area by the other grains and some region was non-constrained due to the vacancy. From this analysis, severity of domain switching depended on the stress level, e.g., the higher compressive stress, caused by the thermal expansion of the other grains, made the strong domain switching.https://www.jstage.jst.go.jp/article/transjsme/84/863/84_17-00570/_pdf/-char/enebsd analysisdomain switchingthermal stresspzt ceramic
spellingShingle Kohei BAMBA
Mitsuhiro OKAYASU
Effect of thermal energy on 90° domain switching characteristics of piezoelectric ceramic
Nihon Kikai Gakkai ronbunshu
ebsd analysis
domain switching
thermal stress
pzt ceramic
title Effect of thermal energy on 90° domain switching characteristics of piezoelectric ceramic
title_full Effect of thermal energy on 90° domain switching characteristics of piezoelectric ceramic
title_fullStr Effect of thermal energy on 90° domain switching characteristics of piezoelectric ceramic
title_full_unstemmed Effect of thermal energy on 90° domain switching characteristics of piezoelectric ceramic
title_short Effect of thermal energy on 90° domain switching characteristics of piezoelectric ceramic
title_sort effect of thermal energy on 90° domain switching characteristics of piezoelectric ceramic
topic ebsd analysis
domain switching
thermal stress
pzt ceramic
url https://www.jstage.jst.go.jp/article/transjsme/84/863/84_17-00570/_pdf/-char/en
work_keys_str_mv AT koheibamba effectofthermalenergyon90domainswitchingcharacteristicsofpiezoelectricceramic
AT mitsuhirookayasu effectofthermalenergyon90domainswitchingcharacteristicsofpiezoelectricceramic