抄録
In the present study supercooling solidifications of an aqueous soluiton of NH4Cl has been experimentally investigated; Fractal analyses were made for the dendritic-ice pattern obtained in the two ways; One is the filled pattern, and the other is that drawn by lines. Their fractal dimension D was determined by the use of the box-counting method. As the results, their fractal dimension D of the filled pattern (Df) is larger than that of the pattern drawn by lines (De). It is concluded that Df represents the true fractal dimension D.