抄録
Various patterns are produced when precipitates emerge from the supersaturated solution. A morphology of a single precipitate can change from a spherical droplet to a Fractal-like structure according to certain environmental condi-tions. As a group, precipitates also form macroscopic patterns. For example, precipitates obey the competitive growth at the late stage of the coarsening process due to the mass conservation in the whole system, and the dynamical scaling laws hold for physical quantities, such as the size distribution of precipitates. These dynamical scaling behaviors hold even when the morphology of each precipitate is fractal. The formation of the macroscopic spatial pattern of precipitates is considered to be related with the coarsening process in non-uniform systems.
