|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Fundamental Aspects and Modeling Powder Metal Synthesis and Processing
||Thermodynamics versus Kinetics of Grain Growth Control to Enable Stable Nanocrystalline Materials
||Ricardo H. R. Castro, Nazia Nafsin
|On-Site Speaker (Planned)
||Ricardo H. R. Castro
In this talk we present thermodynamic data on the effect of dopants on the grain boundary energy of a zirconia based system to defend the thesis that grain growth can be virtually stopped by targeting a decrease in the grain boundary energy. By comparatively analyzing both kinetics and thermodynamics of grain growth, we show that although dopants used to inhibit grain growth are typically regarded as kinetic agents allowing drag forces to reduce grain boundary mobility, their roles on decreasing the grain boundary energy can be remarkable and hold the key for effect design of ultra-stable nanocrystalline materials.