Browse > Article
http://dx.doi.org/10.5140/JASS.2005.22.4.441

RESEARCH ON SPACE ENVIRONMENTAL EFFECT OF ORGANIC COMPOSITE MATERIALS FOR THERMAL MANAGEMENT OF SATELLITES USING MC-50 CYCLOTRON  

Kim, Dae-Weon (School of Mechanical & Aerospace Engineering, Institute of Advanced Aerospace Technology, Seoul National University)
Kim, Dong-Iel (Center for Environmental and Safety Measurement, Korea Research Institute of Standards and Sciences)
Huh, Yong-Hak (Center for Environmental and Safety Measurement, Korea Research Institute of Standards and Sciences)
Yang, Tae-Keun (Lab. of Cyclotron Application, Korea Institute of Radiological & Medical Science)
Lee, Ho-Young (School of Mechanical & Aerospace Engineering, Institute of Advanced Aerospace Technology, Seoul National University)
Kim, Yong-Hyup (School of Mechanical & Aerospace Engineering, Institute of Advanced Aerospace Technology, Seoul National University)
Publication Information
Journal of Astronomy and Space Sciences / v.22, no.4, 2005 , pp. 441-450 More about this Journal
Abstract
The organic material is one of the most popular material for the satellites and the spacecrafts in order to perform the thermal management, and to protect direct exposure from the space environment. The present paper observes material property changes of organic material under the space environment by using ground facilities. One of the representative organic thermal management material of satellites, 2 mil ITO(Indium Tin Oxide) coated aluminized KAPTON was selected for experiments. In order to investigate the single parametric effect of protons in space environment, MC-50 cyclotron system in KIRAMS(Korea Institute of Radiological and Medical Science) was utilized for the ion beam irradiation of protons and ion beam dose was set to the Very Large August 1972 EVENT model, the highest protons occurrence near the earth orbit in history. The energy of ion beam is fixed to 30MeV(mesa electron volt), observed average energy, and the equivalent irradiance time conditions were set to 1-year, 3-year, 5-year and 10-year exposure in space. The procedure of analyses includes the measurement of the ultimate tensile strength for the assessment of quantitative degradation in material properties, and the imaging analyses of crystalline transformation and damages on the exposed surface by FE-SEM(Field Emission Scanning Electron Spectroscopy) etc.
Keywords
space environment; proton; satellite; cyclotron; tensile strength; degradation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 김대원, 김동일, 허용학, 양태건, 김용협 2004a, 한국우주과학회보, 13, 106
2 김대원, 김동일, 허용학, 양태건, 최석원, 김용협 2004b, 한국항공우주학회 학술논문집, 32,120
3 이재상 2002, 박사학위논문, 성균관대학교
4 이창희 1997, 원자력 신소재개발 최종보고서 (대전: 한국원자력연구소), pp.122-128
5 Dooling, D. 1999, in NASA Technical Publication (Washington: NASA), pp.21-25
6 Grard, R. J. L. 1972, in Proceeding of the 6th ESLAB symposium (Paris: ESA), pp.154-166
7 Hasting, D. & Garrett, H. 1996, Spacecraft-Environment Interactions (New York: Cambridge Uni- versity Press), pp.233-242
8 Kleiman, J. H. & Tennyson, R. C. 1998, in Proceeding of International Space Conference ICPMSE-4 (Toronto: ESA,NASA), pp.222-231
9 Bedingfield, K. L. 1996, in NASA reference publication 1390 (Alabama: NASA), pp.223-224
10 Mansur, L. K. 1993, in Nuclear Instruments and Methods, B74, 326
11 Wang, T. Q. 1991, in Nuclear Instruments and Methods, B56, 656