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| Presentation | 2020-07-31 15:45 Electric Field Direction and CaBi2Ta2O9/Bi4Ti3O12 Ultrasonic Performance at elevated temperatures Makie Hidaka, Makiko Kobayashi (Kumamoto Univ.)  US2020-19 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The piezoelectric sol-gel composite can be used as an ultrasonic transducer for nondestructive inspection. Generally, a Pb(Zr,Ti)O3(PZT) material is used for the sol-gel phase. However, it is feared that the high temperature durability is deteriorated due to the inclusion of the lead component and the mismatch between the poling voltage direction and the measurement applied voltage direction. In this study, CaBi2Ta2O9/Bi4Ti3O12(CBTa/BiT) was prepared as a lead-free material. Normally, the pulser receiver (P/R) used during measurement applies a negative voltage, so it is possible to poling with a negative voltage or to make the P/R voltage positive and poling with a positive voltage. However, the negative ions became unstable at high temperature, and poling was impossible at negative voltage. Therefore, in this study, we investigated the effect of the electric field direction by setting the poling voltage to be positive and the applied voltage at the time of measurement to be positive and negative, and found that the electric field direction did not affect the high temperature durability in CBTa/BiT. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Ultrasonic transducer / High temperature durability / Non-destructive inspection / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 123, US2020-19, pp. 33-36, July 2020. | |
| Paper # | US2020-19 | |
| Date of Issue | 2020-07-24 (US) | |
| ISSN | 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 | US2020-19 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2020-07-31 - 2020-07-31 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | US |
| Conference Code | 2020-07-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Electric Field Direction and CaBi2Ta2O9/Bi4Ti3O12 Ultrasonic Performance at elevated temperatures |
| Sub Title (in English) | |
| Keyword(1) | Ultrasonic transducer |
| Keyword(2) | High temperature durability |
| Keyword(3) | Non-destructive inspection |
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| 1st Author's Name | Makie Hidaka |
| 1st Author's Affiliation | Kumamoto University (Kumamoto Univ.) |
| 2nd Author's Name | Makiko Kobayashi |
| 2nd Author's Affiliation | Kumamoto University (Kumamoto Univ.) |
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| Speaker | Author-1 |
| Date Time | 2020-07-31 15:45:00 |
| Presentation Time | 25 minutes |
| Registration for | US |
| Paper # | US2020-19 |
| Volume (vol) | vol.120 |
| Number (no) | no.123 |
| Page | pp.33-36 |
| #Pages | 4 |
| Date of Issue | 2020-07-24 (US) |
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