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Paper Abstract and Keywords
Presentation 2013-05-17 15:55
Observation of damage shapes caused by break arcs on Ag and AgSnO2 contact surfaces during switching operations
Makoto Hasegawa, Keisuke Takahashi, Daichi Kawamura, Yuya Hirano (Chitose Inst. of Science and Tech.) EMD2013-6
Abstract (in Japanese) (See Japanese page) 
(in English) An evaluation system enabling observation and evaluation of changes on contact surface conditions (growth of a crater and/or a pip) during switching operations has been being constructed. Up to now, evaluation of a movable cathode surface profile by way of an optical cross-section method, as well as observation of the counterpart stationary anode surface by means of a CCD camera, has been realized. For the cathode surfaces, temporal changes in cross-sectional profiles along a particular line over a crater formed on the cathode surface were observed. In this paper, more visual observation of temporal changes in the cathode surface conditions (a crater growth process) during switching operations were tried by drawing three-dimensional images of the movable cathode samples based on data obtained with the optical cross-section method. More specifically, Ag contact pairs and AgSnO2 contact pairs were operated to break a DC14V-2A or 3A load current in a DC inductive circuit, and changes in the contact surfaces during the switching operations were observed and evaluated.
Keyword (in Japanese) (See Japanese page) 
(in English) optical cross-section method / electrical contacts / arc discharge / material transfer / erosion / Ag contacts / AgSnO2 contacts /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 48, EMD2013-6, pp. 29-34, May 2013.
Paper # EMD2013-6 
Date of Issue 2013-05-10 (EMD) 
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 EMD  
Conference Date 2013-05-17 - 2013-05-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Chitose Arcadia Plaza 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMD 
Conference Code 2013-05-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Observation of damage shapes caused by break arcs on Ag and AgSnO2 contact surfaces during switching operations 
Sub Title (in English)  
Keyword(1) optical cross-section method  
Keyword(2) electrical contacts  
Keyword(3) arc discharge  
Keyword(4) material transfer  
Keyword(5) erosion  
Keyword(6) Ag contacts  
Keyword(7) AgSnO2 contacts  
Keyword(8)  
1st Author's Name Makoto Hasegawa  
1st Author's Affiliation Chitose Institute of Science and Technology (Chitose Inst. of Science and Tech.)
2nd Author's Name Keisuke Takahashi  
2nd Author's Affiliation Chitose Institute of Science and Technology (Chitose Inst. of Science and Tech.)
3rd Author's Name Daichi Kawamura  
3rd Author's Affiliation Chitose Institute of Science and Technology (Chitose Inst. of Science and Tech.)
4th Author's Name Yuya Hirano  
4th Author's Affiliation Chitose Institute of Science and Technology (Chitose Inst. of Science and Tech.)
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Speaker Author-1 
Date Time 2013-05-17 15:55:00 
Presentation Time 25 minutes 
Registration for EMD 
Paper # EMD2013-6 
Volume (vol) vol.113 
Number (no) no.48 
Page pp.29-34 
#Pages 6 
Date of Issue 2013-05-10 (EMD) 

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