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Cell Invasion during Competitive Growth of Polycrystalline Solidification Patterns
Younggil Song, Fatima L. Mota, Damien Tourret +5
Spatially extended cellular and dendritic array structures forming during solidification processes such as casting, welding, or additive manufacturing are generally polycrystalline…
Scaling laws for two-dimensional dendritic crystal growth in a narrow channel
Younggil Song, Damien Tourret, Alain Karma
We investigate analytically and computationally the dynamics of 2D needle crystal growth from the melt in a narrow channel. Our analytical theory predicts that, in the low supersat…
Microstructural Pattern Formation during Far-from-Equilibrium Alloy Solidification
Kaihua Ji, Elaheh Dorari, Amy J. Clarke +1
We introduce a new phase-field formulation of rapid alloy solidification that quantitatively incorporates nonequilibrium effects at the solid-liquid interface over a very wide rang…
Topological Control of Liquid-Metal-Dealloyed Structures
Longhai Lai, Bernard Gaskey, Alyssa Chuang +2
The past few years have witnessed the rapid development of liquid metal dealloying to fabricate nano-/meso-scale porous and composite structures with ultra-high interfacial area fo…
Microstructural pattern formation during liquid metal dealloying: Phase-field simulations and theoretical analyses
Longhai Lai, Pierre-Antoine Geslin, Alain Karma
In recent years, liquid metal dealloying (LMD) has emerged as a promising material processing method to generate micro and nano-scale bicontinuous or porous structures. Most previo…