Abstract The synergistic effect of protons and electrons on radiation damage of methyl silicone rubber was investigated using a ground-based simulator for space radiation environment. The energy of protons and electronswas chosen as 180 keV, and the fluence 1016 cm-2. Experiment results showed that discharged patterns and aged cracks appeared on the surface of the irradiated samples. The tensile strength and electrical insulation properties were degraded, and the mass loss rate increased after the combined irradiation of protons and electrons. The influence on properties of the silicone rubber induced by the combined irradiation was greater than the separate irradiation of protons or electrons. The synergistic effect of protons and electrons did not show additivity. Under the combined irradiation, degradation effect of the silicone rubber occurred, and the free radicals formed by the breakage of molecular chains due to the combined irradiation were the primary cause for the change in electrical properties.


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    Title :

    SYNERGISTIC EFFECT OF PROTONS AND ELECTRONS ON RADIATION DAMAGE OF METHYL SILICONE RUBBER


    Contributors:
    ZHANG, LIXIN (author) / HE, SHIYU (author) / YANG, DEZHUANG (author) / WEI, QIANG (author)


    Publication date :

    2006-01-01


    Size :

    7 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English