NDLI: Pulsed Vacuum Surface Flashover Characteristics of <formula formulatype=inline><tex Notation=TeX>$ hbox{TiO}_{2}/hbox{Epoxy}$</tex></formula> Nano

Content Provider	IEEE Xplore Digital Library
Author	Yong-Hong Cheng Zeng-Bin Wang Kai Wu
Copyright Year	1973
Abstract	In this paper, micro (mean size is 1 μm) and nano (mean size is 10 nm) TiO₂ (Titania) were loaded into epoxy resin at the same time. Eleven kinds of samples with different filler contents were prepared. Flashover characteristics of the epoxy composites were investigated under 50 ns (rise time)/1.5 μs (half-height width time) unipolar pulse and 5 × 10^-3 Pa vacuum degree. It was found that the nano TiO₂/epoxy composites are of higher flashover voltage than neat epoxy, and the addition of micro TiO₂ in appropriate amount was able to further improve the flashover strength of the nano TiO₂ /epoxy composite. In order to research the mechanism of micro and nano fillers, the permittivity and thermally stimulated depolarization current of the samples were carried out. It was clarified that, when micro filler is added into nano composite, deeplike traps can be increased remarkably, whereas shallowlike traps increase much less and even decrease in some samples. Considering the result of flashover voltage, it was confirmed that deeplike traps will increase flashover voltage.
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	68
Ending Page	77
Page Count	10
File Size	1353730
File Format	PDF
ISSN	00933813
Volume Number	40
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Permittivity Flashover Electrodes Temperature measurement Vacuum systems Temperature sensors Resistance traps Epoxy composite flashover characteristic interface permittivity thermally stimulated depolarization current (TSDC) $\hbox{TiO}_{2}$
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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