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Paper Abstract and Keywords
Presentation 2021-08-06 15:50
AC Poling and Spurious Vibrations in Pb(Mg1/3Nb2/3)O3-PbTiO3 Piezoelectric Single Crystals
Tomoaki Karaki, Yiqin Sun, Yohachi Yamashita (Toyama. Pref. Univ.) ED2021-14
Abstract (in Japanese) (See Japanese page) 
(in English) It has been reported that compared with DC poling (DCP), the AC poling (ACP) could significantly improve the dielectric constant and piezoelectric constant of Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT)-based piezoelectric single crystals used in the probe of medical ultrasonic diagnostic equipment. However, if the applied electric field is too high, it will be in an over-poling state and unnecessary spurious vibration will appear. In this work, 0.1 Hz, 10 cycles of ACP, and 100 seconds of DCP were performed at 80 °C, and the piezoelectric, dielectric, and spurious characteristics at room temperature were compared and evaluated. Small spurious oscillations were observed in the DCP sample, and the spurious oscillations became large in the case of high electric field ACP (HV, 5.0 kVrms/cm). When we used a low electric field ACP (LV, 3.5 kVrms/cm), the sample showed spurious-free, with ε33T/ε0 = 7000, piezoelectric constant d33 = 1570 pC/N, tan δ = 0.35%, and electromechanical coupling coefficient k33 = 92.2%. Moreover, when the ACP temperature was lowered to 0 °C, spurious oscillation was hardly visible even in HV condition. In conclusion, optimization of ACP electric field and temperature is important.
Keyword (in Japanese) (See Japanese page) 
(in English) relaxor piezoelectric single crystals / AC poling / piezoelectric vibration / spurious vibration / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 136, ED2021-14, pp. 13-16, Aug. 2021.
Paper # ED2021-14 
Date of Issue 2021-07-30 (ED) 
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 ED2021-14

Conference Information
Committee ED IEE-BMS IEE-MSS  
Conference Date 2021-08-06 - 2021-08-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ED 
Conference Code 2021-08-ED-BMS-MSS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) AC Poling and Spurious Vibrations in Pb(Mg1/3Nb2/3)O3-PbTiO3 Piezoelectric Single Crystals 
Sub Title (in English)  
Keyword(1) relaxor piezoelectric single crystals  
Keyword(2) AC poling  
Keyword(3) piezoelectric vibration  
Keyword(4) spurious vibration  
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1st Author's Name Tomoaki Karaki  
1st Author's Affiliation Toyama Prefectural University (Toyama. Pref. Univ.)
2nd Author's Name Yiqin Sun  
2nd Author's Affiliation Toyama Prefectural University (Toyama. Pref. Univ.)
3rd Author's Name Yohachi Yamashita  
3rd Author's Affiliation Toyama Prefectural University (Toyama. Pref. Univ.)
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Speaker Author-1 
Date Time 2021-08-06 15:50:00 
Presentation Time 25 minutes 
Registration for ED 
Paper # ED2021-14 
Volume (vol) vol.121 
Number (no) no.136 
Page pp.13-16 
#Pages 4 
Date of Issue 2021-07-30 (ED) 

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