In the last 40 years, the increased space activity created a new form of space environment of hypervelocity objects-space debris-that have no functional use. The space debris, together with naturally occurring ultrahigh velocity meteoroids, presents a significant hazard to spacecraft. Collision with space debris or meteoroids might result in disfunction of external units such as solar cells, affecting materials properties, contaminating optical devices, or destroying satellites. The collision normally results in the formation of additional debris, increasing the hazard for future missions. The hypervelocity debris effect is studied by retrieving materials from space or by using ground simulation facilities. Simulation facilities, which include the light gas gun and laser driven flyer methods, are used for studying the materials degradation due to debris impact. The impact effect could be accelerated when occurring simultaneously with other space environment components, such as atomic oxygen, ultraviolet, or X-ray radiation. Understanding the degradation mechanism might help in developing materials that will withstand the increasing hazard from the space debris, allowing for longer space missions. The large increase in space debris population and the associated risk to space activity requires significant measures to mitigate this hazard. Most current efforts are being devoted to prevention of collisions by keeping track of the larger debris and avoiding formation of new debris.


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    Title :

    Debris/micrometeoroid impacts and synergistic effects on spacecraft materials


    Additional title:

    Zusammenstöße mit Trümmern/Mikrometeoriten und synergistische Effekte bei Raumfahrtwerkstoffen


    Contributors:
    Grossman, E. (author) / Gouzman, I. (author) / Verker, R. (author)

    Published in:

    MRS Bulletin ; 35 , 1 ; 41-47


    Publication date :

    2010


    Size :

    7 Seiten, 9 Bilder, 47 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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