Abstract

Large-scale molecular dynamics simulations of high acceleration energy single impacts on diamond and amorphous carbon surfaces were performed using the molecular dynamics method in order to investigate the cluster surface interaction. A transient crater is formed on the diamond surface while a permanent one is formed on the amorphous surface. The cluster size and velocity dependence on the transient crater's structure, volume, depth and radius were also clarified. Furthermore, multiple impacts on amorphous surface were also performed to investigate the possibility of surface hardening of amorphous carbon.

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