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文章利用静电加速器模拟研究了微小空间碎片及微流星体(空间粉尘)高速撞击镀膜石英玻璃、光学透镜和反射镜的撞击效应与累积损伤特性。扫描电镜观察结果表明,被撞击试样表面的损伤形式为不连续的点缺陷,可发现撞击坑、机械破裂、局部熔化和粉尘微粒子附着;分光光度计测试结果显示,经粉尘累积撞击后,光学透镜的透射率和反射镜的反射率均发生较小程度的衰减;此外,借助于原位测试技术捕捉到了微小粒子高速撞击过程中产生的等离子体和发光现象。
In this paper, the impact and cumulative damage characteristics of micro-space debris and micro-meteoroid (space dust) high speed impact coated quartz glass, optical lens and reflector were studied by using electrostatic accelerator. Scanning electron microscopy results show that the impact of the sample surface damage is discontinuous point defects can be found craters, mechanical rupture, local melting and dust particles attached; spectrophotometer test results show that after the accumulation of dust impact, optical The transmittance of the lens and the reflectance of the mirror both attenuate to a lesser extent; furthermore, the plasma generated during the high-speed impact of the fine particles and the light emission are captured by the in-situ testing technique.