87 citations · 217 across the 7 of their papers we have counts for
5 papers · 1 filter
New density functional approach for solid-liquid-vapor transitions in pure materials
Gabriel Kocher, Nikolas Provatas
A new phase field crystal (PFC) type theory is presented, which accounts for the full spectrum of solid-liquid-vapor phase transitions within the framework of a single density orde…
Atomic-scale pathway of early-stage precipitation in Al-Mg-Si alloys
Vahid Fallah, Andreas Korinek, Nana Ofori-Opoku +4
Strengthening in age-hardenable alloys is mainly achieved through nano-scale precipitates whose formation paths from the atomic-scale, solute-enriched entities are rarely analyzed…
Beyond the Ginzburg-Landau theory of freezing: Anisotropy of the interfacial free energy in the Phase-Field Crystal model
Gyula I. Tóth, Nikolas Provatas
This paper re-visits the weakly fourth order anisotropic Ginzburg-Landau (GL) theory of freezing. First we determine the anisotropy of the interfacial free energy in the Phase-Fiel…
Phase Field Crystal Modeling as a Unified Atomistic Approach to Defect Dynamics
Joel Berry, Nikolas Provatas, Jörg Rottler +1
Material properties controlled by evolving defect structures, such as mechanical response, often involve processes spanning many length and time scales which cannot be modeled usin…
Spacing Characterization in Al-Cu Alloys Directionally Solidified Under Transient Growth Conditions
Morteza Amoorezaei, Sebastian Gurevich, Nikolas Provatas
We study spacing selection in directional solidification of Al-Cu alloys under transient growth conditions. New experimental results are presented which reveal that dendritic spaci…