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 |
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) |
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US2008-58 |
Conference Information |
Committee |
US |
Conference Date |
2008-10-30 - 2008-10-31 |
Place (in Japanese) |
(See Japanese page) |
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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) |
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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) |
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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 |
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Kyushu University (Kyushu Univ.) |
4th Author's Name |
Tosihisa Kajiwara |
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Kyushu University (Kyushu Univ.) |
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Speaker |
Author-1 |
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 |
6 |
Date of Issue |
2008-10-23 (US) |
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