Issues and Consequences of Space Environmental Effect on Materials


The importance of space environmental effect on material is addressed. Some examples of the material degradation in a particular space environment are introduced. In order to endorse the material properties requested in a mission, ground-based studies are quite important. However, present deficient ground-based simulation technology cannot perform the accurate assessment of the material degradation in space. On the other hand, infrastructures for the material evaluation using Kibo and International Space Station, is now established after long desire of material scientists and engineers. However, we will face difficulty for retrieve the exposed sample by the retirement of Space Shuttle. Development of new material evaluation methods using small satellite without retrieving the samples and of the accurate ground-based simulation techniques are both highly desired to achieve low-risk missions.


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