真空 ›› 2019, Vol. 56 ›› Issue (2): 19-21.doi: 10.13385/j.cnki.vacuum.2019.02.03
田海1,2, 杨生胜3, 把得东3
TIAN Hai1,2, YANG Sheng-sheng3, BA De-dong3
摘要: 紫外辐射是造成卫星外表面非金属材料性退化的主要因素之一,材料在空间使用前必须经过充分的紫外辐射效应评价。由于紫外辐照加速倍数较小(近紫外不允许超过5倍),通过地面试验实现材料在轨全周期紫外辐照暴露剂量,试验周期过长。本文介绍了典型星用功能材料紫外辐照作用下的性能退化规律和退化机理,并在此基础上提出了紫外辐照下材料性能退化模型建模方法,为解决大剂量紫外辐射下星用功能材料性能退化评价提供了一种有效手段。
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