摘要
模拟空间环境下原子氧辐照条件,通过采用固定的原子氧束流密度进行不同时间辐照试验,研究了温控涂层材料Kapton/A l薄膜的质量损失、光学性能、表面形貌和表面粗糙度的演化规律。试验结果表明,原子氧对材料的剥蚀量与原子氧的作用时间成正比例关系。材料辐照后太阳吸收率发生明显变化,而辐射率几乎不发生变化。辐照后试样表面的粗糙度,是影响太阳吸收率变化主要因素。随着辐照时间的增长,材料表面粗糙度增加,导致太阳吸收率增大。
In order to simulate the atomic oxygen effects in space environment on thermal control coatings, the changes in mass loss, optical properties, surface morphology and surface roughness of Kapton/Al films were investigated in conditions of a fixed density of atomic oxygen beam for different time. The experimental results showed that the mass loss of atomic oxygen effects is in proportion to the irradiation time. The solar absorptanee changed obviously, while the emittance has little change after irradiation. The roughness of irradiated surface of samples is an important factor to influence the solar absorptance. With increased irradiation time, the surface roughness and solar absorptance are increased.
出处
《航空材料学报》
EI
CAS
CSCD
2006年第1期29-31,35,共4页
Journal of Aeronautical Materials
基金
国防科技重点实验室基金资助(514750301HT-0102)
关键词
原子氧
温控涂层
质量损失
表面粗糙度
太阳吸收率
atomic oxygen
ssss thermal control coatings
mass loss
surface roughness
solar absorptance
