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| Presentation | 2007-11-29 14:50 Piezoelectric properties of potassium niobate ceramics synthesized with hydrothermal powders Norihito Takiguchi, Mutsuo Ishikawa, Hiroshi Hosaka, Takeshi Morita (Univ. Tokyo)  US2007-78 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Potassium niobate (KN) is one of the promising lead-free piezoelectric materials as an environmental friendly material. Non-doped and Mn-doped potassium niobate (KNbO3) ceramics were synthesized with the fine powders obtained by a hydrothermal method. The hydrothermal method utilizes a chemical reaction in solutions. The low reaction temperature (200℃) and the self-assembly growth resulted in high quality KNbO3 and KNbO3-Mn powders. The potassium hydroxide (KOH) was used as a potassium source in the hydrothermal method; then proposed process was free from potassium carbonate (K2CO3) problem; hygroscopic and vaporization properties which prevented high quality KNbO3-ceramics. From the admittance measurements, the piezoelectric performance of this KNbO3-Mn ceramics was confirmed. The resonance frequencies corresponded to the radial and thickness vibration modes exited by the piezoelectric transversal effect. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Hydrothermal method / Potassium niobate / KNbO3 / Lead-free piezoelectric materials / Manganese / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 357, US2007-78, pp. 19-24, Nov. 2007. | |
| Paper # | US2007-78 | |
| Date of Issue | 2007-11-22 (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 | US2007-78 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2007-11-29 - 2007-11-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Shizuoka Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Paper Information | |
| Registration To | US |
| Conference Code | 2007-11-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Piezoelectric properties of potassium niobate ceramics synthesized with hydrothermal powders |
| Sub Title (in English) | |
| Keyword(1) | Hydrothermal method |
| Keyword(2) | Potassium niobate |
| Keyword(3) | KNbO3 |
| Keyword(4) | Lead-free piezoelectric materials |
| Keyword(5) | Manganese |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Norihito Takiguchi |
| 1st Author's Affiliation | The University of Tokyo (Univ. Tokyo) |
| 2nd Author's Name | Mutsuo Ishikawa |
| 2nd Author's Affiliation | The University of Tokyo (Univ. Tokyo) |
| 3rd Author's Name | Hiroshi Hosaka |
| 3rd Author's Affiliation | The University of Tokyo (Univ. Tokyo) |
| 4th Author's Name | Takeshi Morita |
| 4th Author's Affiliation | The University of Tokyo (Univ. Tokyo) |
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| Speaker | Author-1 |
| Date Time | 2007-11-29 14:50:00 |
| Presentation Time | 30 minutes |
| Registration for | US |
| Paper # | US2007-78 |
| Volume (vol) | vol.107 |
| Number (no) | no.357 |
| Page | pp.19-24 |
| #Pages | 6 |
| Date of Issue | 2007-11-22 (US) |
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