Thermal expansion behavior and estimated total polarizations of lead zirconate titanate-lead nickel niobate ceramics
Thermal expansion properties of lead zirconate titanate-lead nickel niobate ((1 - x)PZT-xPNN, x = 0.1-0.5) ceramics were determined in the temperature range of approximately - 100 to + 450 °C by dilatometer thermal expansion measurement. The observed deviation from the straight line below a Burns-li...
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| Main Authors: | , , , , , , , |
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| 格式: | Article |
| 語言: | English |
| 出版: |
2014
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| 在線閱讀: | http://www.scopus.com/inward/record.url?eid=2-s2.0-77954390102&partnerID=40&md5=5a8b29abe5d50922d9fd989d0f1ee053 http://cmuir.cmu.ac.th/handle/6653943832/6207 |
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| 總結: | Thermal expansion properties of lead zirconate titanate-lead nickel niobate ((1 - x)PZT-xPNN, x = 0.1-0.5) ceramics were determined in the temperature range of approximately - 100 to + 450 °C by dilatometer thermal expansion measurement. The observed deviation from the straight line below a Burns-like temperature for all the compositions was interpreted as due to the contribution from the dynamic polarization fluctuations of the relaxor part of the compositions. The Burns temperature was determined and found to increase with increasing PZT concentration. The local polarization was calculated from the thermal expansion data. Various aspects of understanding the polarization behavior and other effects in this ferroelectric system were also examined and discussed. © 2010 Elsevier B.V. |
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