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Volume 39 Issue 8
Aug.  2013
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Journal of Beijing University of Aeronautics and Astronautics  > 2013  >  39(8): 1074-1078.
Zhang Wen, Yi Min, Shen Zhigang, et al. Protection against atomic oxygen erosion of oxide coatings for spacecraft materials[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(8): 1074-1078. (in Chinese)
Citation: Zhang Wen, Yi Min, Shen Zhigang, et al. Protection against atomic oxygen erosion of oxide coatings for spacecraft materials[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(8): 1074-1078. (in Chinese)
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Protection against atomic oxygen erosion of oxide coatings for spacecraft materials

  • School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 26 Aug 2012
  • Rev Recd Date: 26 Nov 2012
  • Publish Date: 30 Aug 2013
    Abstract
  • To improve the atomic oxygen resistance, TiO2 and SiO2 coatings were deposited on polyimide (Kapton), a common material of spacecrafts using magnetron sputtering. The technic of depositing coating was optimized by selecting the experimental material and parameters to overcome the disadvantage of cracking. The atomic oxygen effect experiments were carried out. The results show that the mass loss of Kapton decreases by two orders of magnitude after depositing coatings. In addition, surfaces of coated Kapton change little and display low tendency of cracking. The thermal expansion coefficient of TiO2 is closer to that of Kapton, so TiO2 can provide better protection comparing with SiO2.

     

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