Abstract
For crystallization in a solution that is one of the fabrication processes of functional particles, methods of altering particle shape with additives which are known as habit modifiers have attracted attention. The crystal habit is complicated in applications because there are many controlling parameters, such as supersaturation, concentration, types of additives. Therefore, it is necessary to clarify the mechanisms of crystal growth in order to control the crystal shape. In the present work, the influence of additives on crystal growth has been studied by experiments and simulations. In the experiment, a differential scanning calorimeter (DSC) was used for measuring the properties of clusters formed with various habit modifiers. The number of clusters increased with the concentration of habit modifiers. The formation of clusters was also investigated by molecular dynamics (MD) simulation. The simulation result agreed with the experiment result, and the formation of clusters that assembled around the additives was well demonstrated by the simulation.
