XPCS fluctuation maps analyzed via domain-adaptive ML trained on continuum simulations yield bulk diffusivity, GB stiffness, and effective GB concentration, demonstrating persistent non-equilibrium GB relaxation in nanocrystalline Si.
Science386, 49–54 (2024)
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Probing Non-Equilibrium Grain Boundary Dynamics with XPCS and Domain-Adaptive Machine Learning
XPCS fluctuation maps analyzed via domain-adaptive ML trained on continuum simulations yield bulk diffusivity, GB stiffness, and effective GB concentration, demonstrating persistent non-equilibrium GB relaxation in nanocrystalline Si.