nukleaatioyksiköt
Nukleaatioyksiköt, sometimes referred to as nucleation units, are fundamental concepts in crystallography and materials science. They represent the initial, microscopic clusters of atoms or molecules that form spontaneously in a supersaturated or supercooled solution or melt. These clusters are the seeds from which larger, more ordered crystalline structures eventually grow. The process of their formation is called nucleation, and it is a critical first step in phase transitions involving solidification or crystallization.
The formation of nucleation units is governed by thermodynamics. For a stable nucleus to form, the energy
There are two primary types of nucleation: homogeneous and heterogeneous. Homogeneous nucleation occurs spontaneously within a