NDLI: Investigation of Surface Flashover on Dielectrics Enhanced by Excimer Laser Processing

Content Provider	IEEE Xplore Digital Library
Author	Sarjeant, W.J. Zirnheld, J. Berkow, J. Strzempka, P. Cieri, J.
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. Eng., State Univ. of New York, Buffalo, NY (Sarjeant, W.J.; Zirnheld, J.; Berkow, J.; Strzempka, P.; Cieri, J.)
Abstract	One of the factors that contributes to surface flashover on dielectrics is the existence of defects on the surface of the material. For our studies, excimer laser processing was utilized on alumina dielectrics in an attempt to substantially increase the threshold voltages for flashover. Through excimer laser processing, the surface material melts and re-crystallizes to form a uniform surface structure. The defects on the dielectric surface can be minimized, reducing charge trapping, leading to higher flashover voltages. Two sets of samples were tested. The first set of samples was processed using the laser and the second set was not. The samples were then stressed under high voltage to induce surface flashover. Analysis of the effects of the excimer laser processing was performed and are shown
Starting Page	81
Ending Page	85
File Size	389698
Page Count	5
File Format	PDF
ISBN	142440018X
ISSN	1930885X
DOI	10.1109/MODSYM.2006.365186
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-05-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Surface emitting lasers Flashover Surface charging Electron traps Insulation Annealing Dielectric materials Grain size Optical materials Voltage Electric Breakdown Partial Discharges Alumina Ceramic Insulation Scanning Electron Microscopy
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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