2008 Volume 33 Issue 4 Pages 965-968
Recently, it has been demonstrated that carbon nanomaterials can be synthesized also by arc discharge generated in a liquid medium such as water, liquid nitrogen or liquid helium. Shigematsu et al. have demonstrated that carbon nanomaterials can be produced by de arc discharge in liquid helium. Then, we are working on the clarification of the creation mechanism by analyzing to experiment from both sides of the calculation. And, whether how much time the discharged carbon atom grew up to the size of which extent was examined. The motion of an individual carbon atom was pursued. Carbon velocity after the carbon atoms or the carbon clusters collide is calculated as a perfectly inelastic collision according to the law of conservation of momentum. The process of growing up from the carbon atoms to the carbon clusters that contained a lot of carbon atoms was shown. In addition, it was shown that the number of carbon atoms contained in the cluster for the logarithm at the time of peaks of the number of carbon clusters almost became a linear relationship. The result of this simulation suggests that the growth speed of the carbon clusters in liquid helium be predictable.
