Piezoelectric properties of high Curie temperature barium titanate-bismuth perovskite-type oxide system ceramics
Journal of Applied Physics 108 巻 9 号
094114-1-094114-5 頁
2010 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Piezoelectric properties of high Curie temperature barium titanate-bismuth perovskite-type oxide system ceramics
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| 作成者 |
Wada Satoshi
Yamato Keisuke
Pulpan Petr
Kumada Nobuhiro
Lee Bong-Yeon
Iijima Takashi
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| 収録物名 |
Journal of Applied Physics
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| 巻 | 108 |
| 号 | 9 |
| 開始ページ | 094114-1 |
| 終了ページ | 094114-5 |
| 抄録 |
Barium titanate (BaTiO3, BT)-bismuth magnesium titanium oxide [Bi(Mg0.5Ti0.5)O-3, BMT] system ceramics were prepared in an ambient atmosphere in order to increase the Curie temperature (T-c) of BT above 132 degrees C. A single perovskite phase was observed for BT-BMT ceramics with BMT compositions less than 50 mol %, and their relative densities were greater than 94%. Synchrotron measured x-ray diffraction patterns revealed that all the cations in the ceramics were homogeneously distributed. The temperature dependence of the dielectric properties revealed that the BT-BMT system ceramics exhibited relaxorlike characteristics with a dielectric maximum temperature as high as 360 degrees C for the 0.5BT-0.5BMT ceramic. The apparent piezoelectric constant (d*) was 60 pC/N for the 0.4BT-0.6BMT ceramic. Based upon these results, the BT-BMT system shows potential as a new type of lead-free material for high T-c piezoelectric applications.
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| NDC分類 |
物理学 [ 420 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
The American Institute of Physics
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| 発行日 | 2010 |
| 権利情報 |
Copyright (c) 2010 American Institute of Physics
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0021-8979
[DOI] 10.1063/1.3481390
[NCID] AA00693547
[DOI] http://dx.doi.org/10.1063/1.3481390
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