High-performance Pb-free piezoelectrics surpassing soft PZT
| Project/Area Number |
22360278
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
REN Xiaobing 独立行政法人物質・材料研究機構, 先端材料プロセスユニット, グループリーダー (50292529)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2011: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2010: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
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| Keywords | 圧電材料 / 非鉛圧電材料 / 誘電体 |
|---|
| Research Abstract |
Based on triple-point MPB theory proposed by the present principal investigator, we have developed two new Pb-free piezoelectric systems, BST-BCT and BHT-BCT, which exhibit large piezoelectric constant (d33>500pC/N), a record-high value for Pb-free systems. We have identified the cause of such high properties by means of high-resolution electron microscopy and CBED. Our results may provide a guide to designing high-performance piezoelectric materials.
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Report
(4 results)
Research Products
(56 results)
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[Journal Article] Magnetodielectric effect from the onset of ferrimagnetic transition in CoCr2O42012
Author(s)
Yang S, B. Huixin, D. Xue, Zhou C, J. Gao, Y Wang, JQWang, X P Song, Z B Sun, X. Ren, K. Otsuka
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Journal Title
J. Phys. D-Appl. Phys.
Volume: 45[26]
Issue: 26
Pages: 265001-1
DOI
Related Report
Peer Reviewed
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[Journal Article] Microstructure at morphotropic phase boundary in Pb(Mg1/3Nb2/3)O3-ceramic: Coexistence of nano-scaled {110}-type rhombohedral twin and {110}-type tetragonal twin2012
Author(s)
6.Haijun W, D. Xue, Lv DC, J. Gao, Gao SW, Zhou YM, Ding XD, Zhou C, YangS, Yang YD, X. Ren
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Journal Title
J. Appl. Phys.
Volume: 112[5]
Issue: 5
Pages: 52004-1
DOI
Related Report
Peer Reviewed
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[Journal Article] Microstructure basis for strong piezoelectricity in Pb-free Ba(Zr0.2Ti0.8)O3-(Ba0.7Ca0.3)TiO3 ceramics2011
Author(s)
J. Gao, D. Xue, Y. Wang, D. Wang, L. Zhang, H. Wu, S. Guo, H. Bao, C. Zhou, W. Liu, S. Hou, G. Xiao and X. Ren
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Journal Title
Appl. Phys. Lett.
Volume: 99[9]
Issue: 9
Pages: 92901-1
DOI
Related Report
Peer Reviewed
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[Journal Article] Large Magnetostriction from Morphotropic Phase Boundary in Ferromagnets2010
Author(s)
Sen Yang, Huixin Bao, Chao Zhou, Yu Wang, Xiaobing Ren, Yoshitaka Matsushita, Yoshio Katsuya, Masahiko Tanaka, Keisuke Kobayashi, Xiaoping Song, Jianrong Gao
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Journal Title
Phys. Rev. Lett.
Volume: 104
Issue: 19
Pages: 197201-197201
DOI
Related Report
Peer Reviewed
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