Performance evaluation of carbon nanotube-based oscillators and bearings under electron irradiation: Molecular dynamics study

The performances of the carbon nanotube-based oscillator and bearing under electron irradiation are evaluated with molecular dynamics simulation. Electron irradiation effect is introduced using Monte Carlo method based on the elastic collision cross section in the simulation. Under electron irradiation, the period of the oscillation of the nanotube-based oscillator becomes longer and the rotation of the nanotube-based bearing becomes irregular. In the worst case, the malfunctions occur due to the crosslinks formed by the high energy electron collision. The irradiation effects on the performance of the oscillator and bearing are relatively small below 1 keV.

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► Molecular dynamics simulation on the carbon nano-oscillator and bearing is performed.
► Electron irradiation effect is introduced using Monte Carlo method.
► The period of oscillation becomes longer under electron irradiation.
► The rotation of bearing becomes irregular under electron irradiation.
► The irradiation effects are relatively small below 1 keV.