Improvement of electromechanical coupling factor and mechanical quality factor in PZT-PMN ceramics by MnO2 addition
PZT-PMN ceramic system with presence of MnO2 contents were proposed and prepared using conventional sintering method as for piezoelectric transformer application. Phase formation and several dielectric and piezoelectric parameters were studied as a function of MnO2 concentration. The x-ray diffracti...
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th-cmuir.6653943832-508512018-09-04T04:48:49Z Improvement of electromechanical coupling factor and mechanical quality factor in PZT-PMN ceramics by MnO2 addition Rungnapa Tipakontitikul Amporn Kamonlert Sukum Eitssayeam Anuson Niyompan Engineering Materials Science PZT-PMN ceramic system with presence of MnO2 contents were proposed and prepared using conventional sintering method as for piezoelectric transformer application. Phase formation and several dielectric and piezoelectric parameters were studied as a function of MnO2 concentration. The x-ray diffraction study revealed the tetragonal symmetry for all samples with MnO2 doping. To determine polarization, the P-E hysteresis loop were produced and the results indicated that entering of Mn 4+ ions in the ceramic structure created large amount of oxygen vacancies and the consequent was observed as displacement of the loops to E axis. The obtained optimum parameter are d33 = 119 pC/N, k p = 0.207, Qm = 1669, tan δ = 0.0101, Pr = 20 μm/cm2 and Ec = 10 kV/cm. © (2010) Trans Tech Publications. 2018-09-04T04:46:31Z 2018-09-04T04:46:31Z 2010-02-08 Book Series 10139826 2-s2.0-75749117527 10.4028/www.scientific.net/KEM.421-422.381 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=75749117527&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/50851 |
| institution |
Chiang Mai University |
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Chiang Mai University Library |
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Thailand |
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CMU Intellectual Repository |
| topic |
Engineering Materials Science |
| spellingShingle |
Engineering Materials Science Rungnapa Tipakontitikul Amporn Kamonlert Sukum Eitssayeam Anuson Niyompan Improvement of electromechanical coupling factor and mechanical quality factor in PZT-PMN ceramics by MnO2 addition |
| description |
PZT-PMN ceramic system with presence of MnO2 contents were proposed and prepared using conventional sintering method as for piezoelectric transformer application. Phase formation and several dielectric and piezoelectric parameters were studied as a function of MnO2 concentration. The x-ray diffraction study revealed the tetragonal symmetry for all samples with MnO2 doping. To determine polarization, the P-E hysteresis loop were produced and the results indicated that entering of Mn 4+ ions in the ceramic structure created large amount of oxygen vacancies and the consequent was observed as displacement of the loops to E axis. The obtained optimum parameter are d33 = 119 pC/N, k p = 0.207, Qm = 1669, tan δ = 0.0101, Pr = 20 μm/cm2 and Ec = 10 kV/cm. © (2010) Trans Tech Publications. |
| format |
Book Series |
| author |
Rungnapa Tipakontitikul Amporn Kamonlert Sukum Eitssayeam Anuson Niyompan |
| author_facet |
Rungnapa Tipakontitikul Amporn Kamonlert Sukum Eitssayeam Anuson Niyompan |
| author_sort |
Rungnapa Tipakontitikul |
| title |
Improvement of electromechanical coupling factor and mechanical quality factor in PZT-PMN ceramics by MnO2 addition |
| title_short |
Improvement of electromechanical coupling factor and mechanical quality factor in PZT-PMN ceramics by MnO2 addition |
| title_full |
Improvement of electromechanical coupling factor and mechanical quality factor in PZT-PMN ceramics by MnO2 addition |
| title_fullStr |
Improvement of electromechanical coupling factor and mechanical quality factor in PZT-PMN ceramics by MnO2 addition |
| title_full_unstemmed |
Improvement of electromechanical coupling factor and mechanical quality factor in PZT-PMN ceramics by MnO2 addition |
| title_sort |
improvement of electromechanical coupling factor and mechanical quality factor in pzt-pmn ceramics by mno2 addition |
| publishDate |
2018 |
| url |
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=75749117527&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/50851 |
| _version_ |
1681423664159916032 |