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/
