Role of nano-filler on partial discharge resistance and dielectric breakdown strength of micro-Al2O3/epoxy composites

Zhe Li*, Kenji Okamoto, Yoshimichi Ohki, Toshikatsu Tanaka

*この研究の対応する著者

研究成果: Conference contribution

24 被引用数 (Scopus)

抄録

Epoxy resin often suffers lower dielectric breakdown strength if micro-fillers are loaded. It might be possible to raise the once lowered breakdown strength, if nano-fillers are added. In this paper, such performances were investigated on model specimens consisting of alumina (Al2O 3). First of all, PD (partial discharge) behavior on the surfaces of samples was clarified in the insulation system consisting of a flat copper electrode attached on an epoxy substrate. Then, on the basis of finding, the breakdown strengths were investigated by using a sphere to sphere electrode structure with a flat sample inserted. Several materials consist of neat epoxy, 5%wt nano-Al2O3/epoxy composite, 60%wt micro-Al 2O3/epoxy composite and 2%wt nano-60% wt\micro-Al 2O3/epoxy composite. It was found that nano-micro-Al 2O3/epoxy composite is higher in both dielectric strength and PD resistance than micro-Al2O3/epoxy composite.

本文言語English
ホスト出版物のタイトル2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009
ページ753-756
ページ数4
DOI
出版ステータスPublished - 2009 11 16
イベント2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009 - Harbin, China
継続期間: 2009 7 192009 7 23

出版物シリーズ

名前Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials

Other

Other2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009
国/地域China
CityHarbin
Period09/7/1909/7/23

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 材料化学

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