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Migration of Composite Contact Materials Components at High Current Arcing
Eugeniusz WALCZUK Piotr BORKOWSKI Krystyna FRYDMAN Danuta WOJCIK-GRZYBEK Witold BUCHOLC Makoto HASEGAWA
IEICE TRANSACTIONS on Electronics
Publication Date: 2007/07/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Recent Development of Electromechanical Devices (Selected Papers from ICEC2006))
Category: Arc Discharge & Related Phenomena
electrical contacts, contact materials, arc erosion, material migration,
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The paper presents a method for testing transport of composite contacts materials under electrical arc conditions at high currents and for polarized electrodes. Tests and the discussion of results were carried out for silver-metal, silver-metal oxide and silver-tungsten carbide contact materials. Additionally, tungsten electrode was used as the second contact which was either cathode or anode. Spectrometric analysis of arc erosion components transported onto the second electrode and into the surroundings was carried out.