Materials Research Letters
Nanocrytals -- Research, Nanocrystals -- Materials, Grain boundaries
Grain boundaries in a nanocrystalline microstructure produce an increase in the excess free energy of the system. Grain growth is a consequence of the thermodynamic driving force reducing this excess. Thermodynamic stabilization is an approach based on eliminating the driving force by suitable alloy additions that can produce a metastable equilibrium state at the nanoscale grain size, as opposed to kinetic stabilization where the grain growth mobility is restricted by pinning and/or drag mechanisms. The present paper reviews and compares various models proposed for thermodynamic stabilization.
Saber, Mostafa; Koch, Carl C.; and Scattergood, Ronald O., "Thermodynamic Grain Size Stabilization Models: An Overview" (2015). Mechanical and Materials Engineering Faculty Publications and Presentations. 79.