Space charge distributions in glass fibre/epoxy resin composites under dc 10 kV mm-1 electric field

Hidesato Tanaka*, Yoshimichi Ohki, Kaori Fukunaga, Takashi Maeno, Kenji Okamoto

*この研究の対応する著者

研究成果: Article査読

27 被引用数 (Scopus)

抄録

In this paper, the authors discuss one- and three-dimensional space charge distributions in glass fibre/epoxy resin composites. By the conventional pulsed electroacoustic (PEA) method, only a one-dimensional distribution of the average charge over a whole area parallel to the two electrodes can be observed. Therefore, the authors have developed a new PEA system capable of measuring a three-dimensional space charge distribution. Using this system, they measured the charge distribution in glass fibre/epoxy resin composites made of lattice-woven glass fibre and epoxy resin. It has become clear that spatial variation in signal intensity observed depends on the internal structure of the composite. There appear repetitious positions where a high charge density is observed on the same lateral cross section along the vertical direction in the composite. Such positions are consistent with the intersections of the glass fibres. Accumulation of mobile charge carriers or appearance of polarization charge due to mismatch of the ratio of the conductivity and permittivity between the glass fibre and the epoxy resin is thought to be responsible for the PEA signals.

本文言語English
論文番号027
ページ(範囲)1489-1496
ページ数8
ジャーナルJournal of Physics D: Applied Physics
40
5
DOI
出版ステータスPublished - 2007 3月 7

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
  • 音響学および超音波学
  • 表面、皮膜および薄膜

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