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

Tetsuo Takayama; Mitsugu Todo; Yasuharu Takenoshita; Akira Myoui

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 proceeding › Conference contribution

Abstract

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 language	English
Title of host publication	Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness
Subtitle of host publication	From Green Composites to Aerospace"
Publication status	Published - Dec 1 2007
Event	16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" - Kyoto, Japan Duration: Jul 8 2007 → Jul 13 2007

Publication series

Name	ICCM International Conferences on Composite Materials

Other

Other	16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
Country/Territory	Japan
City	Kyoto
Period	7/8/07 → 7/13/07

All Science Journal Classification (ASJC) codes

Engineering(all)
Ceramics and Composites

Cite this

Takayama, T., Todo, M., Takenoshita, Y., & Myoui, A. (2007). Effect of nano- and micro-particles on fracture characteristic of HA/PLLA composites. In Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" (ICCM International Conferences on Composite Materials).

Effect of nano- and micro-particles on fracture characteristic of HA/PLLA composites. / Takayama, Tetsuo; Todo, Mitsugu; Takenoshita, Yasuharu et al.
Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace". 2007. (ICCM International Conferences on Composite Materials).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Takayama, T, Todo, M, Takenoshita, Y & Myoui, A 2007, Effect of nano- and micro-particles on fracture characteristic of HA/PLLA composites. in Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace". ICCM International Conferences on Composite Materials, 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace", Kyoto, Japan, 7/8/07.

Takayama, Tetsuo ; Todo, Mitsugu ; Takenoshita, Yasuharu et al. / Effect of nano- and micro-particles on fracture characteristic of HA/PLLA composites. Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace". 2007. (ICCM International Conferences on Composite Materials).

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abstract = "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.",

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T1 - Effect of nano- and micro-particles on fracture characteristic of HA/PLLA composites

AU - Takayama, Tetsuo

AU - Todo, Mitsugu

AU - Takenoshita, Yasuharu

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N2 - 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.

AB - 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.

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BT - Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness

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Y2 - 8 July 2007 through 13 July 2007

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

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