Title :
Surface erosion due to partial discharges on several kinds of epoxy nanocomposites
Author :
Kozako, Masahiro ; Kuge, Shin-Ichi ; Imai, Takahiro ; Ozaki, Tamon ; Shimizu, Toshio ; Tanaka, Toshikatsu
Author_Institution :
Dept. of Electr. & Electron. Eng., Kagoshima Univ., Japan
Abstract :
Resistance to partial discharge (PD) was investigated for four kinds of epoxy nanocomposites, an epoxy resin without fillers, and an epoxy resin with SiO2 micro-filler. The nano-fillers used were TiO2, two different particle sizes of SiO2, and layered silicate. Filler content was 5 wt % in all nano- and microcomposites. Such materials were subjected to PDs under a rod-gap-plane electrode. It is concluded that all the nanocomposites are more resistant to PDs than that without fillers and with microfillers. And epoxy/SiO2 nanocomposites are more resistant to PDs than the other nanocomposites. Moreover, the epoxy/SiO2 nanocomposite of smaller particle size is superior in PD resistance to that of larger size.
Keywords :
electrodes; nanostructured materials; partial discharges; particle size; polymers; silicon compounds; surface roughness; titanium compounds; wear; PD resistance; SiO2; TiO2; epoxy nanocomposites; epoxy resin; layered silicate; microcomposites; nano-filler; partial discharge; particle size; rod-gap-plane electrode; surface erosion; Electrodes; Epoxy resins; Nanocomposites; Partial discharges; Rough surfaces; Scanning electron microscopy; Shape; Surface discharges; Surface morphology; Surface resistance;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2005. CEIDP '05. 2005 Annual Report Conference on
Print_ISBN :
0-7803-9257-4
DOI :
10.1109/CEIDP.2005.1560646
