质子辐照对防静电热控涂层导电性能影响  

The effects of proton irradiation on electrical properties of thermal control coatings

作　　者：赵春晴[1] 沈自才[1] 冯伟泉[1] 丁义刚[1] 刘宇明[1] 郑慧奇[1] 赵雪[1] 李涛[1] 

机构地区：[1]北京卫星环境工程研究所,北京100094

出　　处：《航天器环境工程》2009年第2期118-121,97,共4页Spacecraft Environment Engineering

摘　　要：文章研究了质子辐照环境对两种防静电热控涂层(ITO/F46/Ag、ITO/OSR/Ag)导电性能的影响,质子总注量选取1×1015p/cm2,并在不同质子注量下对试样表面电阻率进行了原位测量。试验发现,质子辐照下两种防静电热控涂层的表面电阻率均呈指数衰减趋势,且回至大气中出现明显的"恢复效应"。对涂层导电性能退化的微观机制进行了分析,并建立了相应导电性能演化规律的简化数学模型,可为新型涂层的研制提供理论依据。This paper studies the effects of proton irradiation on electrical properties of two kinds of antistatic thermal control coatings (ITO/F46/Ag, ITO/OSR/Ag). The maximun fluence of proton is set as 1.5×1015 p/cm2, and the surface resistivity of each sample is measured in situ under different fluences. It is found that the surface resistivity of the samples is in an exponentially decreasing trend for both kinds of coatings, with a recovery of resistivity when the sample is re-exposed to the air. This paper analyzes the degradation mechanism of electrical properties with simple mathematical models, which may serve as a theoretical basis for developing new thermal control coatings.

关 键 词：质子辐照 热控涂层 导电性能 退化机理 

分 类 号：O484.4+2[理学—固体物理] V416.5[理学—物理]