Surface roughness change of epoxy/TiO/sub 2/ nanocomposites due to partial discharges
書誌事項
- 公開日
- 2005
- DOI
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- 10.1109/iseim.2005.193456
- 公開者
- IEEE
説明
Partial discharge degradation of an epoxy nanocomposite with 5 weight % additions of nanoscale TiO/sub 2/ particles was investigated in comparison with that of an epoxy resin without nanofillers. Such materials were subjected to PDs under the IEC(b) electrode configuration for evaluation. Surface roughened by PD attack was inspected by a mechanical surface profilometer and a scanning electron microscope. Erosion depth and surface roughness were selected as indexes of surface degradation in this research. It is elucidated that surface degradation of the nanocomposite due to PDs is caused by erosion of epoxy matrix around the nanofillers. As the surface degradation proceeds, large agglomerates of the nanofillers appear on the eroded surface. Erosion depth and Surface roughness are far smaller in the specimens with nanofillers than those without nanofillers. This result indicates that the epoxy/TiO/sub 2/ nanocomposite is more resistant to PDs than that without nanofillers.
収録刊行物
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- Proceedings of 2005 International Symposium on Electrical Insulating Materials, 2005. (ISEIM 2005).
-
Proceedings of 2005 International Symposium on Electrical Insulating Materials, 2005. (ISEIM 2005). 661-664 Vol. 3, 2005
IEEE