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Paper Abstract and Keywords
Presentation 2017-10-28 10:45
Fabrication of Lithium Niobate Ceramics by using Lithium Niobate Single Crystal and the Two-step Firing Process
Kai Takamiya, Hironori Yokoyama, Takashi Ogasawara, Keishi Takasu, Noriko Bamba (Shinshu Univ.) CPM2017-76
Abstract (in Japanese) (See Japanese page) 
(in English) In this research, lithium niobate (LN) single crystal and a two-step firing process were used to obtain dense LN ceramics which is material with low sinterability. The effects of the two-step firing process and single crystal on sintering of LN were investigated. LN single phase ceramics with a relative density of about 95% can be obtained without sintering aid and solid solution. This is due to that normal grain growth occurred in the 1st step of the two-step firing process suppressed a rapid grain growth in the subsequent 2nd step at higher temperature. It was confirmed that grain growth and densification were promoted when ceramics were sandwiched between LN single crystals during sintering, compared to ceramics prepared without single crystals. Promotion of sintering by LN single crystals is concluded from the fact that the density and average grain size of LN ceramics sintered by using a heavier Al2O3 plate were almost the same as LN ceramics without single crystals.
Keyword (in Japanese) (See Japanese page) 
(in English) lithium niobate / ceramics / two-step firing / single crystal assist / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 268, CPM2017-76, pp. 51-55, Oct. 2017.
Paper # CPM2017-76 
Date of Issue 2017-10-20 (CPM) 
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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Conference Information
Committee CPM  
Conference Date 2017-10-27 - 2017-10-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Shinshu Univ. Nagano-Education Campus, E7 building 3F 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To CPM 
Conference Code 2017-10-CPM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Fabrication of Lithium Niobate Ceramics by using Lithium Niobate Single Crystal and the Two-step Firing Process 
Sub Title (in English)  
Keyword(1) lithium niobate  
Keyword(2) ceramics  
Keyword(3) two-step firing  
Keyword(4) single crystal assist  
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1st Author's Name Kai Takamiya  
1st Author's Affiliation Shinshu University (Shinshu Univ.)
2nd Author's Name Hironori Yokoyama  
2nd Author's Affiliation Shinshu University (Shinshu Univ.)
3rd Author's Name Takashi Ogasawara  
3rd Author's Affiliation Shinshu University (Shinshu Univ.)
4th Author's Name Keishi Takasu  
4th Author's Affiliation Shinshu University (Shinshu Univ.)
5th Author's Name Noriko Bamba  
5th Author's Affiliation Shinshu University (Shinshu Univ.)
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Speaker Author-5 
Date Time 2017-10-28 10:45:00 
Presentation Time 20 minutes 
Registration for CPM 
Paper # CPM2017-76 
Volume (vol) vol.117 
Number (no) no.268 
Page pp.51-55 
#Pages 5 
Date of Issue 2017-10-20 (CPM) 

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