PROTECTIVE EFFECTS OF SIO2-K2SIO3 ORGANIC-INORGANIC COMPOSITE COATINGS FOR THE SPACECRAFT

J Chin Soc Corr Pro

2004, Vol. 24

Issue (2): 91-94 DOI:

Research Report

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PROTECTIVE EFFECTS OF SIO2-K2SIO3 ORGANIC-INORGANIC COMPOSITE COATINGS FOR THE SPACECRAFT

Zhang Lei;Yan Chuanwei;Li Qi

中科院金属研究所（南区）

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Abstract Atomic oxygen erosion of spacecraft materials and protection by coatings were studied in the ground-based simulation facilities. The corrosion morphologies and products were characterized by several physical techniques, including scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Silicon dioxide- potassium silicate organic-inorganic composite coatings due to higher conductivity improved resistance to high temperature and thermal cycling. The results indicated that Kapton is susceptible to AO erosion and undergoes mass loss and surface degradation. SiO2-K2SiO3 coatings have excellent properties for anti-AO effects and good stability for space environment.

Key words: Atomic Oxygen erosion SiO2-K2SiO3 organic-inorganic composite coatings

Received: 17 December 2003

ZTFLH:

TG174.46

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Zhang Lei; Yan Chuanwei; Li Qi. PROTECTIVE EFFECTS OF SIO2-K2SIO3 ORGANIC-INORGANIC COMPOSITE COATINGS FOR THE SPACECRAFT. J Chin Soc Corr Pro, 2004, 24(2): 91-94 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2004/V24/I2/91

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