Dielectric properties and PD resistance of epoxy/fumed and precipitated silica and alumina nanocomposites

Toshikatsu Tanaka*, Tomonori Iizuka, Christian Meichsner, Peter Gröppel, Dieter Heinl, Jürgen R. Weidner

*この研究の対応する著者

研究成果: Conference article査読

8 被引用数 (Scopus)

抄録

Epoxy/fumed and precipitated silica and alumina nanocomposites were evaluated on their dielectric properties and partial discharge (PD) resistance. Dielectric properties, i.e., permittivity and dissipation factor tanδ were measured in the frequency range from 20 Hz to 1 MHz. PD resistance was assessed using a rod-to-plane electrode with an air gap 0.2 mm under 4 kVrms. A new discovery was made for moisture and chemical residue effects for the dielectric properties. Natural moisture would not affect much permanent dielectric properties. It was elucidated that nano filler addition would enhance PD resistance, as expected. Furthermore, it was found that epoxy/silica nanocomposite is better in PD resistance than epoxy/alumina nanocomposite. Filler preparation methods, i.e., fumed and precipitated, might influence both properties.

本文言語English
論文番号6378775
ページ(範囲)279-282
ページ数4
ジャーナルAnnual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
DOI
出版ステータスPublished - 2012
イベント2012 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2012 - Montreal, QC, Canada
継続期間: 2012 10 142012 10 17

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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