DC Dielectric Breakdown Characteristic of Mesoporous-Alumina/Epoxy Composite

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2013/03/01

タイトル(英語): DC Dielectric Breakdown Characteristic of Mesoporous-Alumina/Epoxy Composite

著者名: Muneaki Kurimoto (Toyohashi University of Technology), Tomohiro Kawashima (Toyohashi University of Technology), Daichi Kusaba (Toyohashi University of Technology), Yoshinobu Murakami (Toyohashi University of Technology), Masayuki Nagao (Toyohashi Universi

著者名(英語): Muneaki Kurimoto (Toyohashi University of Technology), Tomohiro Kawashima (Toyohashi University of Technology), Daichi Kusaba (Toyohashi University of Technology), Yoshinobu Murakami (Toyohashi University of Technology), Masayuki Nagao (Toyohashi University of Technology)

キーワード: mesoporous-alumina particle，epoxy composite，particle pore，DC breakdown strength

要約(英語): This paper presents an attempt to derive the dc dielectric breakdown characteristic of epoxy composite containing alumina particles with mesoporous structure (Mesoporous-alumina/epoxy composite). By compounding epoxy resin and mesoporous-alumina particles which had the micrometric particle-diameter and the nanometric pore-size, mesoporous-alumina/epoxy composite was fabricated. The measurement of the specific gravity of mesoporous-alumina/epoxy composites revealed that the porosity of mesoporous-alumina particle even in the epoxy matrix was higher than that of nonporous-alumina particle. Furthermore, the measurement of the dielectric permittivity of the mesoporous-alumina/epoxy composites verified the existence of pore inside the mesoporous-alumina particle from the view point of electrical characteristics. From the breakdown test with using Mckeown electrode system, DC breakdown strength of mesoporous-alumina/epoxy composites was obtained, which was compared with that of the nonporous-alumina/epoxy composites. These results suggested that the nanometric pore with wormhole structure inside mesoporous particle could not be the critical defect for DC dielectric breakdown characteristic.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.133 No.3 （2013） 特集：2011 International Symposium on Electrical Insulating Materials

本誌掲載ページ: 111-115 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/133/3/133_111/_article/-char/ja/