Effect of nano- and micro-particles on fracture characteristic of HA/PLLA composites

Tetsuo Takayama, Mitsugu Todo, Yasuharu Takenoshita, Akira Myoui

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


    Effects of bimodal distribution of micro- and nano-HA particles on the mechanical properties such as bending strength, modulus and J-integral at crack initiation, Jin, of HA/PLLA composites were investigated. The Bending properties were improved by bimodal distribution. It is considered that in bimodal HA/PLLA, PLLA molecular chains are constrained by existence of HA particles, resulting in the reduction of deformation of molecular chains. Jin was also effectively improved by bimodal distribution. Additional increase of dissipated energy due to dense ductile deformation of the matrix and debonding of the particle/matrix interfaces is thought to be the primary mechanism for the improvement of Jin.

    Original languageEnglish
    Title of host publicationProceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness
    Subtitle of host publicationFrom Green Composites to Aerospace"
    PublisherInternational Committee on Composite Materials
    ISBN (Print)9784931136052
    Publication statusPublished - 2007

    Publication series

    NameICCM International Conferences on Composite Materials

    All Science Journal Classification (ASJC) codes

    • General Engineering
    • Ceramics and Composites


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