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在爆轰反应区的热密产物流中进行Brown运动的最初碳原子“珠”通过任意碰撞在C-J面处聚结成碳液滴。这个过程可以近似用胶体理论的快速聚沉动力学来描述。假定在爆轰反应区末端爆轰产物中碳液滴数等于聚沉过程结束时的碳滴数,则在此基础上计算得到的类金刚石碳滴的生成时间在爆轰反应区的时间长度内,实验中得到的超细金刚石的大颗粒(~20nm)含有约7.36×10 ̄5个原子,其对应反应区内的液态碳滴可以近似处理成严格进行两分子反应的碳的十九级滴,当碳滴所包含的碳原子数达到以上特定值时,爆轰反应过程结束,因此碳滴形成时间能被估算出来。
The first carbon atoms “beads” performing Brownian motion in the heat and dense product stream in the detonation reaction zone coalesced into carbon droplets at the C-J face by any collision. This process can be approximated by the fast settling kinetics of colloidal theory. Assuming that the number of carbon droplets in the detonation product at the end of the detonation reaction zone is equal to the number of carbon droplets at the end of the precipitation process, the formation time of the diamond-like carbon droplets calculated on this basis is within the time length of the detonation reaction zone , The large particles (~ 20nm) of the ultrafine diamonds obtained in the experiment contain about 7.36 × 10 ~ 5 atoms, and the liquid carbon droplets in the corresponding reaction zone can be roughly treated into nineteen carbons which undergo strict two-molecule reaction Droplet, when the number of carbon atoms contained in the carbon droplets reaches the above specific value, the detonation reaction process ends, so the carbon drop formation time can be estimated.