NDLI: Simultaneous measurements of space charge distribution and external circuit current up to electrical breakdown in LDPE film

Content Provider	IEEE Xplore Digital Library
Author	Fukuma, M. Nagao, M. Kosaki, M. Kohno, Y.
Copyright Year	1998
Description	Author affiliation: Matsue Coll. of Technol., Japan (Fukuma, M.)
Abstract	A space charge distribution and an external circuit current were simultaneously measured up to electrical breakdown in a 100 /spl mu/m thick low-density polyethylene (LDPE) film with a semi-conducting electrode under dc voltage by using pulse electro-acoustic (PEA) method. We estimated an electric field distribution and a conduction current from these experiments. An electric field distortion due to a positive charge accumulation was observed at room temperature near the breakdown field. At 60/spl deg/C and 90/spl deg/C, however, an electric field distortion due to negative charge was observed, but the electric field distortions were not so large even near the breakdown field. The estimated conduction current reached to about 10 mA/m/sup 2/ before the electrical breakdown in each measurements. The obtained results suggest that the LDPE film becomes quasiconductive for negative charge at the field near breakdown and that the electrical breakdown is affected by the conduction current rather than the maximum electric field within the sample in the LDPE film.
Starting Page	144
Ending Page	147
File Size	539755
Page Count	4
File Format	PDF
ISBN	0780350359
DOI	10.1109/CEIDP.1998.733892
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-10-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Current measurement Charge measurement Space charge Electric breakdown Distortion measurement Electric variables measurement Pulse measurements Breakdown voltage Conductive films Thick film circuits
Content Type	Text
Resource Type	Article

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