Effects of Vacuum Ultraviolet Radiation on Atomic Oxygen Erosion of Polysiloxane/SiO2 Hybrid Coatings |
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Authors: | Longfei Hu Meishuan Li Yanchun Zhou |
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Abstract: | Polysiloxane/SiO2 hybrid coatings have been prepared on Kapton films by a sol-gel process.The erosion resistance of polysiloxane/SiO2(20 wt pct) coating was evaluated by exposure tests of vacuum ultraviolet radiation(VUV) and atomic oxygen beam(AO) in a ground-based simulation facility.The experimental results indicate that this coating exhibits better AO resistance than pure polysiloxane coating.The erosion yield(Ey) of the polysiloxane/SiO2(20 wt pct) hybrid coating is about 10-27 cm3/atom,being one or tw... |
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Keywords: | Atomic oxygen Vacuum ultraviolet radiation Erosion yield Hybrid coating |
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