期刊
JOURNAL OF COMPOSITE MATERIALS
卷 50, 期 4, 页码 435-446出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998315576378
关键词
Epoxy; silicon carbide; nanoparticle; nanowhisker; tribology; mechanical properties
资金
- Iran's Ministry of Science, Research and Technology (MSRT)
In this study, the influence of filler shape and filler content on the physical and mechanical properties of silicon carbide/epoxy nanocomposites was investigated using silicon carbide nanoparticles and nanowhiskers. Samples containing 0.5, 1, 2 and 4wt% of -silicon carbide nanowhiskers and nanoparticles in epoxy resin were prepared using a high-intensity ultrasonic liquid processor and casting technique. Mechanical and physical tests such as tensile, flexural, hardness, and wear along with a morphological investigation by FT-IR, scanning electron microscopy and transition electron microscopy were performed. Results of mechanical tests indicating about 20% and 40% improvement were achieved in nanoparticle (1wt%) and nanowhisker (2wt%) reinforced samples, respectively. Also mechanical experiment results have been evaluated with theoretical models. Tribological results show that wear and frictional properties improved about 50% and 30%, respectively, by adding silicon carbide nanoparticles (4wt%) and nanowhiskers (4wt%) to epoxy resin. TEM and SEM observations showed that nano-fillers are dispersed in low weight ratio but agglomerated above a critical content.
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