Abstract
Validity of traditional additivity rule in diffusion-controlled growth is discussed. This process has a memory of thermal history due to temperature-dependent interface concentrations. When the thermodynamics is involved, the application of additivity rule should be carefully considered. By introducing a thermal history-related function, generalized isokinetic hypothesis and additivity rule involving the thermal history-dependent instantaneous reaction rate are proposed. According to the exact solutions of diffusion-controlled growth, the generalized additivity rule is analyzed, discussed, and applied well.
Original language | English |
---|---|
Pages (from-to) | 2624-2629 |
Number of pages | 6 |
Journal | Journal of Materials Science |
Volume | 49 |
Issue number | 6 |
DOIs | |
State | Published - Mar 2014 |