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| Presentation | 2009-10-23 11:10 Piezoelectric properties of the hydrothermal (K,Na)NbO3 lead-free piezoelectric ceramics Takafumi Maeda, Norihito Takiguchi (Univ. of Tokyo), Mutsuo Ishikawa (TIT), Tobias Hemsel (Univ. of Paderborn), Takeshi Morita (Univ. of Tokyo)  US2009-68 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | (K,Na)NbO3 is considered as alternative for PZT, because of its good piezoelectric properties. In this study, (K,Na)NbO3 ceramics were sintered from mixed KNbO3 and NaNbO3 powders prepared by the hydrothermal reaction. Hydrothermal reaction enables to produce high quality ceramics powder. To make (K1-xNax)NbO3, these two powders were mixed and then sintered. And then, (K1-xNax)NbO3 ceramics was confirmed sintering solid solution from X-ray diffraction and evaluated the piezoelectric properties to optimize composition of K/Na in (K1-xNax)NbO3. Optimized composition was (K0.48Na0.52)NbO3 and it showed excellent piezoelectric properties; $k_{33}$=0.56,$ \epsilon $_{33}T/0= 207, c33E=45GPa, d33=114pm/V,Qm=74. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Lead-free piezoelectric material / KNN ceramics / Hydrothermal method / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 239, US2009-68, pp. 61-65, Oct. 2009. | |
| Paper # | US2009-68 | |
| Date of Issue | 2009-10-15 (US) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | US2009-68 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2009-10-22 - 2009-10-23 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Institute of Industrial Science, the University of Tokyo |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Material Proparty, General |
| Paper Information | |
| Registration To | US |
| Conference Code | 2009-10-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Piezoelectric properties of the hydrothermal (K,Na)NbO3 lead-free piezoelectric ceramics |
| Sub Title (in English) | |
| Keyword(1) | Lead-free piezoelectric material |
| Keyword(2) | KNN ceramics |
| Keyword(3) | Hydrothermal method |
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| 1st Author's Name | Takafumi Maeda |
| 1st Author's Affiliation | The University of Tokyo (Univ. of Tokyo) |
| 2nd Author's Name | Norihito Takiguchi |
| 2nd Author's Affiliation | The University of Tokyo (Univ. of Tokyo) |
| 3rd Author's Name | Mutsuo Ishikawa |
| 3rd Author's Affiliation | Tokyo Institute of Technology (TIT) |
| 4th Author's Name | Tobias Hemsel |
| 4th Author's Affiliation | University of Paderborn (Univ. of Paderborn) |
| 5th Author's Name | Takeshi Morita |
| 5th Author's Affiliation | The University of Tokyo (Univ. of Tokyo) |
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| Speaker | Author-1 |
| Date Time | 2009-10-23 11:10:00 |
| Presentation Time | 20 minutes |
| Registration for | US |
| Paper # | US2009-68 |
| Volume (vol) | vol.109 |
| Number (no) | no.239 |
| Page | pp.61-65 |
| #Pages | 5 |
| Date of Issue | 2009-10-15 (US) |
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