Reduction of Carbon-Carbon Composites using Bio Antioxidant

In past decades, carbon–carbon composites composed of multidirectional carbon fiber reinforcement embedded in carbon matrix have been significantly explored due to its excellent mechanical and physical properties. Carbon-carbon composites have light weight, high strength at high temperature in non-oxidizing atmospheres, low coefficient of thermal expansion, high electrical conductivity and high thermal conductivity. Based on the properties, the carbon-carbon composites can be utilized in high speed vehicles and thermal management applications. However, carbon is easily oxidized at temperature of 450C and above which resulted in decrease of its properties such as electrical conductivity. In general, high temperature heat treatments (above 1,000C) are included for the production of carboncarbon composites. In this study, we introduced a bio antioxidant which is nontoxic and environmentally safe for deoxidation of carboncarbon composites. We also demonstrate that the deoxidation improves the electrical property of carbon-carbon composites. This work will possibly extend the applicable areas of carboncarbon composites to electrical and biomechanical applications. Keywords—Carbon, Carbon-Carbon Composite, Composite, Reduction, Bio Antioxidant