NDLI: Effect of electrode material on space charge behavior in epoxy resin

Content Provider	IEEE Xplore Digital Library
Author	Peng Liu Zhen Xiang Xin Ning Hua Feng Zongren Peng
Copyright Year	2013
Description	Author affiliation: State Key Lab. of Electr. Insulation & Power Equip., Xi'an Jiaotong Univ., Xi'an, China (Peng Liu; Zhen Xiang; Xin Ning; Hua Feng; Zongren Peng)
Abstract	The effect of electrode material on the space charge behavior in epoxy resin has been investigated using the pulsed electro-acoustic (PEA) technique. Common metallic electrode materials, i.e. gold, silver and copper, were selected and sputter-coated on the specimens, and the space charge dynamics after the application of various electric fields were monitored at 293 K and 313 K. The space charge accumulation thresholds of epoxy resin with the three electrodes at these temperatures were also derived. It is found that homo space charge close to the electrodes make up the majority of the space charge in the specimens. It is pointed out that charge injection from electrodes accounts for the space charge accumulation process. Experimental results demonstrate that the electrode material has a considerable effect on the space charge behavior in epoxy resin. Furthermore, the differences in the amount of space charge accumulation and in the space charge accumulation thresholds with gold, silver, and copper electrodes are qualitatively explained by their different work functions.
Sponsorship	IEEE Dielectr. Electr. Insul. Soc.
Starting Page	230
Ending Page	233
File Size	281107
Page Count	4
File Format	PDF
ISBN	9781479925971
DOI	10.1109/CEIDP.2013.6747435
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-10-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Space charge Gold Epoxy resins Electric fields Insulators
Content Type	Text
Resource Type	Article

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