Pulsed vacuum flashover properties of micro and nano Al2O3·3H2O/epoxy composites

Author

Chen, Yu ; Cheng, Yonghong ; Zhou, Jiabin ; Wang, Zengbin ; Meng, Guodong ; Wu, Kai

fYear

2009

fDate

19-23 July 2009

Firstpage

785

Lastpage

788

Abstract

Micro and nano Al₂O₃middot3H₂O fillers are loaded into the epoxy resin by mixing different weight ratio. The flashover studies were conducted using three kinds of nanosecond rise pulse under 5 times 10^-3 Pa vacuum. The surface flashover properties of nano and micro Al₂O₃middot3H₂O/epoxy composites are presented. The influence of filler size and content on the interface structure, interface layer distribution and interface volume proportion was discussed. The relationship between particle size influence and flashover voltage was analyzed. A deep and shallow trap model based on the multi-layer model was proposed. Considering the size influence of fillers, the flashover characteristic was able to be explained.

Keywords

aluminium compounds; composite insulators; flashover; polymers; epoxy composites; epoxy resin; interface layer distribution; interface structure; interface volume proportion; microfillers; nanofillers; pulsed vacuum flashover properties; Dielectric materials; Dielectrics and electrical insulation; Electrodes; Epoxy resins; Flashover; Temperature; Vacuum breakdown; Vacuum systems; Vacuum technology; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 2009. ICPADM 2009. IEEE 9th International Conference on the

Conference_Location

Harbin

Print_ISBN

978-1-4244-4367-3

Electronic_ISBN

978-1-4244-4368-0

Type

conf

DOI

10.1109/ICPADM.2009.5252160

Filename

5252160