Abstract Metallized thin films are commonly considered for solar sail membranes operating in the interplanetary space. A key characteristic of this environment is the solar wind, with its charged low energy 10 keV particles. Aluminum subjected to low energy protons undergoes recombination processes between protons and metal electrons, resulting in the formation of blisters on the surface. Blistering results in degradation of the reflective properties of the solar sail membrane. Specimens were tested at environmental conditions derived from a conceptual sub-L1 mission. They were exposed to 2.5 keV protons at temperatures between - 176 ° C and 113 ° C. The exposed samples exhibited visible color changes; from shiny metallic to dim light gray. Reflectivity measurements revealed reductions in specular reflectance, which results in changes to the propulsion characteristics of a sailcraft subjected to similar environmental conditions.

中文翻译：

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由于氢起泡导致太阳帆推进受到限制

摘要 金属化薄膜通常被认为是在行星际空间中运行的太阳帆膜。这种环境的一个关键特征是太阳风，它带有带电的低能量 10 keV 粒子。铝受到低能质子的作用，会发生质子和金属电子之间的复合过程，导致表面形成气泡。起泡会导致太阳帆膜的反射性能下降。样本在源自概念性 sub-L1 任务的环境条件下进行了测试。它们在 - 176°C 和 113°C 之间的温度下暴露于 2.5 keV 质子。暴露的样品表现出可见的颜色变化；从闪亮的金属色到暗淡的浅灰色。反射率测量显示镜面反射率降低，