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Paper Abstract and Keywords
Presentation 2008-10-31 11:10
Relation between Debye temperature measured by ultrasonic method and heat capacity of oxide glasses
Seiji Inaba, Shigeru Fujino, Yasuya Nakayama, Tosihisa Kajiwara (Kyushu Univ.) US2008-58
Abstract (in Japanese) (See Japanese page) 
(in English) Some binary and ternary silicate, aluminosilicate, borate, phosphate, tellurite, gerumanate and heavy metal oxide glasses were prepared in melting method. Debye temperature was calculated form mean velocity measured by ultrasonic method. Heat capacity was measured in the temperature range from 300 to 840K by A.C. calorimetry. We proposed an empirical equation for estimating the mean velocity in terms of ionic packing ratio and dissociation energy of oxide glass. The relationship between heat capacity and chemical composition was discussed by use of the Debye model. We found that heat capacities of all the samples studied here scaled with the molar heat capacity at the Debye temperature have a similar magnitude and temperature dependence, from 300K to the glass transition points. Based on the observation obtained in this work, we proposed an empirical equation which is composed of Debye temperature calculated form chemical composition.
Keyword (in Japanese) (See Japanese page) 
(in English) oxide glass / chemical composition / ultrasonic method / velocity / Debye temperature / A.C. calorimetry / heat capacity /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 266, US2008-58, pp. 45-50, Oct. 2008.
Paper # US2008-58 
Date of Issue 2008-10-23 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 US  
Conference Date 2008-10-30 - 2008-10-31 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To US 
Conference Code 2008-10-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Relation between Debye temperature measured by ultrasonic method and heat capacity of oxide glasses 
Sub Title (in English)  
Keyword(1) oxide glass  
Keyword(2) chemical composition  
Keyword(3) ultrasonic method  
Keyword(4) velocity  
Keyword(5) Debye temperature  
Keyword(6) A.C. calorimetry  
Keyword(7) heat capacity  
Keyword(8)  
1st Author's Name Seiji Inaba  
1st Author's Affiliation Kyushu University (Kyushu Univ.)
2nd Author's Name Shigeru Fujino  
2nd Author's Affiliation Kyushu University (Kyushu Univ.)
3rd Author's Name Yasuya Nakayama  
3rd Author's Affiliation Kyushu University (Kyushu Univ.)
4th Author's Name Tosihisa Kajiwara  
4th Author's Affiliation Kyushu University (Kyushu Univ.)
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Date Time 2008-10-31 11:10:00 
Presentation Time 20 minutes 
Registration for US 
Paper # US2008-58 
Volume (vol) vol.108 
Number (no) no.266 
Page pp.45-50 
#Pages
Date of Issue 2008-10-23 (US) 


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