Compressive deformation of MWCNT porous preform during infiltration of aluminum or magnesium alloy

Hisao Uozumi, Kenta Kobayashi, Kota Nakanishi, Tadashi Matsunaga, Hiroki Sakamoto, Yukata Mekuchi, Masaki Kuno, Takayuki Tsukada, Kenji Shinozaki, Chitoshi Masuda, Makoto Yoshida

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

    Abstract

    Multi-walled carbon nanotube (MWCNT) has sperior high strength, high modulus and high thermal conductivity. The contact angle between MWCNT and molten metal is necessary to estimate the threshold pressure to infiltration. In this study, at first, wettability of the basal plane of graphite by molten aluminum or magnesium was measured using sessile drop method. As the result, the contact angle molten aluminum or magnesium was 127° or 120° respectively. Secondary, wettability of the MWCNT preform by molten aluminum or magnesium was measured. The both molten droplets bounced and rolled on the MWCNT preforms. By means of average values of droplet height, equatorial diameter and interfacial diameter, the contact angle was estimated. As a result, the contact angle between the MWCNT preform and molten aluminum or magnesium was 174° or 165° respectively. By using Cassie's rule of mixture, it was calculated that contact angle between MWCNT and molten aluminum or magnesium was 168° or 150° respectively. Moreover, trial fabrication of MWCNT reinforced aluminum or magnesium alloys composites was carried out by squeeze casting. As the result, these composites were obtained without non-infiltration.

    Original languageEnglish
    Title of host publicationICCM International Conferences on Composite Materials
    Publication statusPublished - 2007
    Event16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" - Kyoto
    Duration: 2007 Jul 82007 Jul 13

    Other

    Other16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
    CityKyoto
    Period07/7/807/7/13

    Keywords

    • Aluminum
    • Composite
    • Magnesium compressive deformation
    • Multi-walled carbon nanotube
    • Wettability

    ASJC Scopus subject areas

    • Engineering(all)
    • Ceramics and Composites

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  • Cite this

    Uozumi, H., Kobayashi, K., Nakanishi, K., Matsunaga, T., Sakamoto, H., Mekuchi, Y., Kuno, M., Tsukada, T., Shinozaki, K., Masuda, C., & Yoshida, M. (2007). Compressive deformation of MWCNT porous preform during infiltration of aluminum or magnesium alloy. In ICCM International Conferences on Composite Materials