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

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    17 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Title of host publicationProceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials
    Pages753-756
    Number of pages4
    DOIs
    Publication statusPublished - 2009
    Event2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009 - Harbin
    Duration: 2009 Jul 192009 Jul 23

    Other

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

    Fingerprint

    Partial discharges
    Electric breakdown
    fillers
    Fillers
    breakdown
    composite materials
    Composite materials
    Epoxy Resins
    Electrodes
    electrodes
    Aluminum Oxide
    epoxy resins
    Epoxy resins
    insulation
    Insulation
    Copper
    Alumina
    aluminum oxides
    copper
    Substrates

    Keywords

    • Breakdown strength
    • Epoxy
    • Nano-AlO
    • Nano-micro-composite
    • Partial discharge

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Materials Chemistry
    • Condensed Matter Physics

    Cite this

    Li, Z., Okamoto, K., Ohki, Y., & Tanaka, T. (2009). Role of nano-filler on partial discharge resistance and dielectric breakdown strength of micro-Al2O3/epoxy composites. In Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials (pp. 753-756). [5252321] https://doi.org/10.1109/ICPADM.2009.5252321

    Role of nano-filler on partial discharge resistance and dielectric breakdown strength of micro-Al2O3/epoxy composites. / Li, Zhe; Okamoto, Kenji; Ohki, Yoshimichi; Tanaka, Toshikatsu.

    Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials. 2009. p. 753-756 5252321.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Li, Z, Okamoto, K, Ohki, Y & Tanaka, T 2009, Role of nano-filler on partial discharge resistance and dielectric breakdown strength of micro-Al2O3/epoxy composites. in Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials., 5252321, pp. 753-756, 2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009, Harbin, 09/7/19. https://doi.org/10.1109/ICPADM.2009.5252321
    Li Z, Okamoto K, Ohki Y, Tanaka T. Role of nano-filler on partial discharge resistance and dielectric breakdown strength of micro-Al2O3/epoxy composites. In Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials. 2009. p. 753-756. 5252321 https://doi.org/10.1109/ICPADM.2009.5252321
    Li, Zhe ; Okamoto, Kenji ; Ohki, Yoshimichi ; Tanaka, Toshikatsu. / Role of nano-filler on partial discharge resistance and dielectric breakdown strength of micro-Al2O3/epoxy composites. Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials. 2009. pp. 753-756
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