caa a22 4500 463229150 CHVBK 20180405153236.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10853-006-1025-4 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1025-4 Strength and fracture toughness of nano and micron-silica particles bidispersed epoxy composites: evaluated by fragility parameter [Elektronische Daten] [Soon-Chul Kwon, Tadaharu Adachi] In this study, we discuss the composition effect of 240nm and 1.56μm-silica particles on strength and fracture toughness by examining two parameters, fragility and glass transition temperature, that were derived from the thermo-viscoelasticity measurements. Experimental results showed that the composites had a lower fragility with higher strength and fracture toughness as the content of nanoparticles was increased regardless of glass transition temperature. The improvement in mechanical properties from adding nanoparticles was definitely explained by the fragility represented the heterogeneity in polymer matrix, and this was related to the interaction between particles and matrix. The fragility was found to be an effective parameter for evaluating strength and fracture toughness of epoxy composite containing a bidispersion of nano and micron-silica particles. Springer Science+Business Media, LLC, 2007 Kwon Soon-Chul Department of Mechanical Sciences and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, 152-8552, Tokyo, Japan aut Adachi Tadaharu Department of Mechanical Sciences and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, 152-8552, Tokyo, Japan aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/14(2007-07-01), 5516-5523 0022-2461 42:14<5516 2007 42 10853 https://doi.org/10.1007/s10853-006-1025-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1025-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kwon Soon-Chul Department of Mechanical Sciences and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, 152-8552, Tokyo, Japan aut NATIONALLICENCE 700 1- Adachi Tadaharu Department of Mechanical Sciences and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, 152-8552, Tokyo, Japan aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/14(2007-07-01), 5516-5523 0022-2461 42:14<5516 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer