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Influence of MeV protons on mechanical properties of ITO/aluminum-coated Kapton designed for space missions |
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| Authors: | Dae-Weon Kim Dong-Iel Kim Tae-Keun Yang Myung-Gyu Ha Kye-Ryong Kim |
| Affiliation: | a School of Mechanical and Aerospace Engineering, Seoul National University, Sillim-dong, Gwanak-gu, Seoul 151-742, South Korea b Strength Evaluation Group, Research Institute of Standards and Science, P.O. Box 102, Yuseong, Daejeon 305-600, South Korea c Division of Accelerator Development and IR Application, Korea Institute of Radiological and Medical Sciences, 215-4, Gongneung-Dong, Seoul 139-706, South Korea d Busan Center/High Technology Component and Material Research Team, Korea Basic Science Institute, 30 Jangjeondong, Geumjeong-gu, Busan 607-735, South Korea e Proton Engineering Frontier Project Team, Korea Atomic Energy Research Institute, P.O. Box 105, Yuseong, Daejeon 305-600, South Korea f Research and Development Institute, Doha Industry, 1183, Songhyon-Ri, Jinrae-Myon, Gimhae-City, Kyongnam 621-882, South Korea |
| Abstract: | Cyclotron generated MeV protons were used to evaluate the mechanical behavior such as tensile strength and elongation of ITO/aluminum-coated Kapton that is known to be one of the most useful polymers for space missions. The mechanical properties (tensile strength and elongation) of specimens irradiated with high-energy protons were lower then those irradiated with low energy protons. A considerable increase in the mechanical properties was found at irradiation with lower fluencies that is explained by the unique characteristics of the molecular structure of Kapton. The ITO and aluminum coatings on Kapton, while contributing to the mechanical strength of the coated Kapton, were found to be affected by the proton irradiation. |
| Keywords: | 94.30.Ny 95.30.Ft |
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