caa a22 4500 463230329 CHVBK 20180405153240.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10853-006-1420-x doi (NATIONALLICENCE)springer-10.1007/s10853-006-1420-x Fracture behaviours of epoxy nanocomposites with nano-silica at low and elevated temperatures [Elektronische Daten] [Shiqiang Deng, Lin Ye, Klaus Friedrich] An investigation was conducted to characterize fracture behaviours of nano-silica modified epoxies at low and elevated temperatures. A nano-silica dispersed epoxy (Nanopox XP 22/0516, Hanse-Chemie, Germany) with 40wt% silica nano-particles was used as modifier to toughen an epoxy resin, Araldite F (Bisphenol A based, Ciba-Geigy). Fracture toughness and other mechanical properties were measured using standard compact tension (CT), tensile and flexural specimens to elaborate the effects of nano-silica particles on fracture behaviours of epoxy nanocomposites at different temperatures, −50, 0, 23, 50 and 70°C. Dynamic mechanical analysis (DMA) was utilized to define the glass transition temperature (T g) upon the addition of different amounts of nano-silica particles. Fracture toughness of the nano-silica modified epoxies was clearly increased at 23°C and 50°C, but the role of nano-silica particles in enhancing the fracture toughness became less pronounced at 0°C and −50°C and disappeared at 70°C. Springer Science+Business Media, LLC, 2007 Deng Shiqiang Centre for Advanced Materials Technology, School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, 2006, Sydney, NSW, Australia aut Ye Lin Centre for Advanced Materials Technology, School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, 2006, Sydney, NSW, Australia aut Friedrich Klaus Institute for Composite Materials, University of Kaiserslautern, 67663, Kaiserslautern, Germany aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/8(2007-04-01), 2766-2774 0022-2461 42:8<2766 2007 42 10853 https://doi.org/10.1007/s10853-006-1420-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1420-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Deng Shiqiang Centre for Advanced Materials Technology, School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, 2006, Sydney, NSW, Australia aut NATIONALLICENCE 700 1- Ye Lin Centre for Advanced Materials Technology, School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, 2006, Sydney, NSW, Australia aut NATIONALLICENCE 700 1- Friedrich Klaus Institute for Composite Materials, University of Kaiserslautern, 67663, Kaiserslautern, Germany aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/8(2007-04-01), 2766-2774 0022-2461 42:8<2766 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer