Prediction of Atomic Oxygen Erosion Yield for Spacecraft Polymers
Banks, Bruce A., et al. (2011). "Prediction of Atomic Oxygen Erosion Yield for Spacecraft Polymers." Journal of Spacecraft and Rockets 48 1: 14-22
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 ±6.3×10-25 cm3/atom. The predictive tool uses the chemical structures and physical properties of polymers to predict in-space atomic oxygen erosion yield. A technique which uses the erosion yields of two materials is presented to allow prediction of the erosion yield of a composite material.