Impact effects on fused quartz glass by ground simulating hypervelocity space debris  

作　　者：SONG LiHong WEI Qiang BAI Yu GAO Cheng 

机构地区：[1]Tianjin Key Laboratory of Composite and Functional Materials,School of Materials Science and Engineering,Tianjin University [2]Beijing Institute of Spacecrafts Environment Engineering

出　　处：《Chinese Science Bulletin》2013年第7期724-731,共8页

基　　金：supported by the National Natural Science Foundation of China (Grant No. 41274191)

摘　　要：The optical attenuation of fused silica glass impacted by high-speed micro-particle was studied.The high-speed impact test was carried out using a laser-driven flyer system which accelerated 16 ?m-thick flyer to high speed of 3.7 km s?1.Scanning electron microscopy and optical microscopy were used to characterize the damage morphology of the impacted surface.The transmittance of the impacted glass samples was measured by means of UV/VIS double beam spectrophotometer.It was found that the transmittance of the impact region decreased due to the formation of structural defects such as crater,ejecta and micro-crack on the surface.A mathematic formula was established to explain the relationship between glass optical properties and the damaged modes,which aids to describe optical degradation and design long life optical equipments used in spacecrafts under space particles environment.The optical attenuation of fused silica glass impacted by high-speed micro-particle was studied. The high-speed impact test was carried out using a laser-driven flyer system which accelerated 16 gm-thick flyer to high speed of 3.7 km s 1. Scanning electron microscopy and optical microscopy were used to characterize the damage morphology of the impacted surface. The transmittance of the impacted glass samples was measured by means of UV/VIS double beam spectrophotometer. It was found that the transmittance of the impact region decreased due to the formation of structural defects such as crater, ejecta and mi- cro-crack on the surface. A mathematic formula was established to explain the relationship between glass optical properties and the damaged modes, which aids to describe optical degradation and design long life optical equipments used in spacecrafts under space particles environment.

关 键 词：熔石英玻璃 冲击效应 空间碎片 地面模拟 超高速 扫描电子显微镜 光学显微镜 激光驱动飞片 

分 类 号：V528[航空宇航科学与技术—人机与环境工程] TN204[电子电信—物理电子学]