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Paper Abstract and Keywords
Presentation 2009-11-20 10:00
A study on influence of surrounding atmosphere to gaseous phase transition in break arc
Kiyoshi Yoshida, Koichiro Sawa (Nippon Inst. of Tech.) EMD2009-91
Abstract (in Japanese) (See Japanese page) 
(in English) The influence of a surrounding gas on arc duration time and the gaseous phase transition were experimentally researched in Ag, AgSnO2 Break arc. Arc duration ta, Metallic phase duration tm, and Metallic to gaseous phase transition ratio G were measured. There are four kinds of surrounding gases, that is, air, oxygen, nitrogen, and helium. Pressure was set to atmospheric pressure (0.1MPa). Under the E=48V, closed contacts current Io has been changed within the range of 0.4 - 5A. As a result, the arc duration of Ag became longer in oxygen, and the gaseous phase transition was occurred in most small Io. The arc voltage waveform has changed with a surrounding gas and the contact material. Moreover, a surrounding gas influences Io of the gaseous phase transition boundary in Ag. On the other hand, the influence of gas was small in AgSnO2.
Keyword (in Japanese) (See Japanese page) 
(in English) Electrical contacts / Arc discharge / Surrounding atmosphere / Silver / Metallic phase arc / Gaseous Phase arc / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 287, EMD2009-91, pp. 97-100, Nov. 2009.
Paper # EMD2009-91 
Date of Issue 2009-11-12 (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 2009-11-19 - 2009-11-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Nippon Institute of Technology, Kanda Campus, Tokyo, Japan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) IS-EMD2009 (9th International Session on Electro-Mechanical Devices) 
Paper Information
Registration To EMD 
Conference Code 2009-11-EMD 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on influence of surrounding atmosphere to gaseous phase transition in break arc 
Sub Title (in English)  
Keyword(1) Electrical contacts  
Keyword(2) Arc discharge  
Keyword(3) Surrounding atmosphere  
Keyword(4) Silver  
Keyword(5) Metallic phase arc  
Keyword(6) Gaseous Phase arc  
Keyword(7)  
Keyword(8)  
1st Author's Name Kiyoshi Yoshida  
1st Author's Affiliation Nippon Institute of Technology (Nippon Inst. of Tech.)
2nd Author's Name Koichiro Sawa  
2nd Author's Affiliation Nippon Institute of Technology (Nippon Inst. of Tech.)
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Speaker Author-1 
Date Time 2009-11-20 10:00:00 
Presentation Time 20 minutes 
Registration for EMD 
Paper # EMD2009-91 
Volume (vol) vol.109 
Number (no) no.287 
Page pp.97-100 
#Pages 4 
Date of Issue 2009-11-12 (EMD) 

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