The SEM images show the cross-sections of NBR and SBR elastomers exposed to the He + ion beam (IMAGE)

National Centre for Nuclear Research

The SEM images show the cross-sections of NBR and SBR elastomers exposed to the He + ion beam

Caption

The SEM images show the cross-sections of NBR and SBR elastomers exposed to the He + ion beam with a fluency of 1x10^17 cm-2. Irradiation with a high-energy ion beam causes cross-linking of the polymer surface layer. The core of the non-ionized material remains flexible and can stretch the rigid top layer, causing the surface layer to wrinkle and micro-crack.

Credit

NCBJ

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CC BY-SA

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