Relaxation Process of Nuclei on Rapid Solidification

在这项研究中，研究了均匀核能存活多长时间。在CO_2水的过饱和溶液中产生原子核，从超声源中存活后打开容器。这种情况是由罐装啤酒和可乐造成的。测定存活时间和松弛时间。一旦给出存活时间，气泡衰变的松弛速度比原始样品要快。存活1小时后，打开罐装啤酒，没有形成气泡。这一结果可以用Pshechnikov等人的标准来解释。这一判据是存在直径小于临界直径的亚临界核，并且是稳定存在的。

In this research, how long the homogeneous nuclei can survive was investigated. The nuclei was produced in the supersaturated solution of CO_2 in water, the vessel was opened after vivration from super sonic source. This situation was made by using cannded beer and cola. The term of vivration and relaxation time was measured. Once the vivration was given, the relaxation speed of decay of bubble was higher than that of original sample. After 1 hour from vivration, when the can beer was opened, no bubble formed. This result can be explained by using the criteria of Pshechnikov et al. This criteria is that there is sub critical nuclei whose diameter is smaller than critical one, and exist stavly.