Silicon carbide with high wear resistance character is the only chemical compound of carbon and silicon. Also Silicon carbide (SiC) nanoparticles exhibit characteristics such as high stability, high thermal conductivity, excellent wear resistance, good resistant to oxidation and a small thermal expansion coefficient. In this study the effects of nano-SiC treatment on modulus of elasticity (MOE), modulus of rupture (MOR), impact strength, compression strength perpendicular to the grain and abrasive resistance (pin-on-disc method) of beech wood (Fagus orientalis) were investigated. Wood samples were treated with SiC solutions in a pressure vessel. Three concentrations of nano SiC, 0.5%, 1% and 1.5% were used. The results although showed that the treatment had no significant effect on MOE, MOR and compression strength perpendicular to the grain but impact strength of specimens were reduced significantly. On the other hand, as expected, the abrasive resistance was improved significantly. It was observed that abrasive weight loss decreases with increase in the nano content. The best results of abrasive resistance were seen in samples that were treated with 1.5% nono-SiC with a 46.8% reduction in abrasive weight loss. Meanwhile the most reduction in MOE and impact strength was occurred in samples containing 0.5% nano-SiC though these reductions statistically were not significant.
Keywords: Nano silicon carbide, Beech wood, Mechanical properties, Abrasive resistance
Authors
Bazyar B.
Department of Wood and Paper Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran
Vatanibaf S.
Department of Wood and Paper Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran
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