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Paper Abstract and Keywords
Presentation 2009-01-29 14:15
Investigation of Determination Procedures of Acoustical Physical Constants of Class 6mm Single Crystals by the Ultrasonic Microspectroscopy Technology
Jun-ichi Kushibiki, Yuji Ohashi, Mototaka Arakawa, Tomoya Tanaka (Tohoku Univ.) US2008-77
Abstract (in Japanese) (See Japanese page) 
(in English) We theoretically and numerically investigated procedures of accurately determining the acoustical physical constants of the piezoelectric hexagonal (class 6mm) crystals using bulk-wave velocities and leaky surface-acoustic-wave (LSAW) velocities by the ultrasonic microspectroscopy (UMS) technology. Taking ZnO as an example, selection of proper propagation modes and directions for eight velocity measurements was discussed for accurate determination of five elastic constants c11E, c12E, c13E, c33E, and c44E, and three piezoelectric constants e15, e31, and e33, in addition to measurements of two dielectric constants ε11S and ε33S and density ρ. Using only bulk-wave velocities measured for Y-cut, Z-cut, and several rotated Y-cut crystalline plane specimens could provide the best determination accuracies for the constants c13E, c33E, e31, and e33, and favorable determination accuracies using several sets of two rotated Y-cut crystalline plane specimens such as (101) and (102). Conductive specimens of (001) and (102) with a resistive (103) specimen made bulk-wave measurements simpler, resulting in much improved determination accuracies. Additional use of LSAW velocity with one conductive (001) specimen enabled simplifying the accurate determination procedures with acceptable accuracy for c13E. Measurements of bulk-wave velocities and LSAW velocities for only two resistive Y-cut and Z-cut specimens could determine all the constants with some deteriorations in accuracy especially for e31 and e33, but this was useful for preliminary determination of the constants for the precious crystals.
Keyword (in Japanese) (See Japanese page) 
(in English) piezoelectric hexagonal single crystals / ultrasonic microspectroscopy technology / acoustical physical constants / resistivity / bulk wave velocity / leaky surface acoustic wave velocity / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 410, US2008-77, pp. 27-32, Jan. 2009.
Paper # US2008-77 
Date of Issue 2009-01-22 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee EA US  
Conference Date 2009-01-29 - 2009-01-30 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To US 
Conference Code 2009-01-EA-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Investigation of Determination Procedures of Acoustical Physical Constants of Class 6mm Single Crystals by the Ultrasonic Microspectroscopy Technology 
Sub Title (in English)  
Keyword(1) piezoelectric hexagonal single crystals  
Keyword(2) ultrasonic microspectroscopy technology  
Keyword(3) acoustical physical constants  
Keyword(4) resistivity  
Keyword(5) bulk wave velocity  
Keyword(6) leaky surface acoustic wave velocity  
Keyword(7)  
Keyword(8)  
1st Author's Name Jun-ichi Kushibiki  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Yuji Ohashi  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Mototaka Arakawa  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Tomoya Tanaka  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-2 
Date Time 2009-01-29 14:15:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2008-77 
Volume (vol) vol.108 
Number (no) no.410 
Page pp.27-32 
#Pages
Date of Issue 2009-01-22 (US) 


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