About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fundamental Science of Microstructural Evolution and Phase Transformations: An MPMD/FMD/SMD Symposium in Honor of Peter Voorhees
|
| Presentation Title |
Elastic-Energy Driven Mesocrystal Formation via Spinodal Decomposition and Its Coarsening Behavior |
| Author(s) |
Shiddhartha Ramprakash, Shalini Roy Koneru, Yunzhi Wang |
| On-Site Speaker (Planned) |
Yunzhi Wang |
| Abstract Scope |
Coherency elastic strain energy plays a critical role in governing microstructural evolution and pattern formation in solid-state processes, and Prof. Voorhees has made many key contributions to this field. In this presentation, we report elastic-energy-driven formation of distinct microstructural architectures comprising discrete nanoparticles arranged in a highly periodic manner (i.e., mesocrystals) via spinodal decomposition and their coarsening behavior. The key parameters investigated via phase-field simulations include composition-dependent lattice parameters and elastic constants. A prototype alloy system is employed to systematically demonstrate the impact of these parameters on synthesizing defect-free mesocrystals, followed by a detailed analysis of their coarsening behavior. Our results reveal deviations from classical power-law coarsening, necessitating new theoretical development to accurately capture the observed kinetics. These findings offer insights into guiding nanoscale patterning in materials with miscibility gaps, with implications for both structural and functional applications, and contribute to the broader understanding of elastic-energy-driven microstructural evolution. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Phase Transformations, Computational Materials Science & Engineering |