The thermally activated fracture processes in the carbon backbone ofdiamond-like carbon nanothreads and the hydrogen desorption from them has beenstudied by the molecular dynamics method. Specifically, the temperaturedependence of the characteristic desorption time at T = 1700-2800 K has beendetermined. The activation energy and frequency factor in the Arrhenius formulafor the desorption rate are found. This allows estimating the desorption timeat any temperature. The mechanical stiffness of nanothreads is calculated.
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