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Study on Antioxidant Properties of the Carbon Fibers Coated with Oxide-Alumina-Silica Film
Abstract:
An oxide-alumina-silica coating which would to improve the oxidation resistance of carbon fibers was prepared by sol-gel method. XRD and SEM were used to characterize the surface appearance and phase transition about the carbon fibers with oxide-alumina-silica coating. The oxidation resistance of carbon fibers was also analyzed with the DSC-TG and the isothermal oxidation experiment. It was shown that the antioxidant properties of the carbon fibers with oxide-alumina-silica coating improved significantly. The concentration of precursor sol had an influence on the coating of carbon fibers and the antioxidant properties of the carbon fibers with oxide alumina silica coating increased 300°C compared to uncoated ones.
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535-539
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December 2014
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© 2015 Trans Tech Publications Ltd. All Rights Reserved
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