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随着航天技术的迅速发展,要求航天器长寿命、高可靠性、高精度和多用途,这对航天器所用材料的性能提出了越来越高的要求。碳/环氧复合材料不仅具有密度小、比强度和比刚度高等特点,而且在真空条件下质损率低,热膨胀系数小,在航天领域得到了越来越广泛的应用。在大多数的空间环境因素的长期作用下,碳/环氧复合材料的各项性能将发生变化,进而会对航天器在轨服役的可靠性及寿命产生影响。
With the rapid development of aerospace technology, spacecraft are required to have long life, high reliability, high precision and multipurpose, which puts higher and higher requirements on the performance of materials used in spacecraft. The carbon / epoxy composite material not only has the characteristics of low density, high specific strength and specific stiffness, but also low quality loss under vacuum and low thermal expansion coefficient, and has been applied more and more widely in the spaceflight field. Under the long-term effects of most space environmental factors, the properties of carbon / epoxy composites will change, which in turn will have an impact on the reliability and life expectancy of spacecraft in orbit.