Abstract
The SiC/SiO 2 deposition was performed to improve the oxidation resistive properties of carbon nanofiber (CNF) from electrospinning at elevated temperatures through sol–gel process. The stabilized polyacrylonitrile (PAN) fibers were coated with SiO 2 followed by heat treatment up to 1000 and 1400 °C in an inert argon atmosphere. The chemical compositions of the CNFs surface heat-treated were characterized as C, Si and O existing as SiC and SiO 2 compounds on the surface. The uniform and continuous coating improved the oxidation resistance of the carbon nanofibers. The residual weight of the composite was 70–80% and mixture of SiC, SiO 2 and some residual carbon after exposure to air at 1000 °C.
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