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Prediction of Atomic Oxygen Erosion Yield for Spacecraft Polymers

机译:航天器聚合物的原子氧侵蚀率预测

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The ability to predict the atomic oxygen erosion yield of polymers based on their chemistry and physical properties has been only partially successful because of a lack of reliable low-Earth-orbit erosion yield data. The retrieval of the polymer erosion and contamination experiment after 3.95 years in low Earth orbit as part of the Materials International Space Station Experiment 2 provided accurate measurements of the erosion yields of 38 polymers and pyrolytic graphite. The resulting erosion yield data was used to develop a predictive tool with a correlation coefficient of 0.895 and uncertainty of ±6.3 x 10~(-25) cm~3/atom. The predictive tool uses the chemical structures and physical properties of polymers to predict in-space atomic oxygen erosion yields. A technique which uses the erosion yields of two materials is presented to allow prediction of the erosion yield of a composite material.
机译:由于缺乏可靠的低地球轨道侵蚀产量数据,因此基于其化学和物理性质预测聚合物的原子氧侵蚀产量的能力仅获得部分成功。在低地球轨道上进行了3.95年后的聚合物腐蚀和污染实验的检索,这是材料国际空间站实验2的一部分,提供了38种聚合物和热解石墨的腐蚀产率的准确测量值。所得到的侵蚀产量数据被用于开发预测工具,其相关系数为0.895,不确定度为±6.3 x 10〜(-25)cm〜3 /原子。该预测工具利用聚合物的化学结构和物理性质来预测空间原子氧侵蚀的产生量。提出了一种使用两种材料的腐蚀率的技术,以预测复合材料的腐蚀率。

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