|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Phase Stability, Phase Transformations, and Reactive Phase Formation in Electronic Materials XXII
||Use of Molecular Dynamics Simulations to Examine Crystal Growth from the Melt in Pure Sn Systems
||Andrea Papaleo, Bruce White, Stephen Whitelam, Eric J. Cotts
|On-Site Speaker (Planned)
At length scales up to one hundred microns, atomic attachment kinetics have a strong influence on Sn crystal growth morphologies from the undercooled melt, and thus on the microstructure of Sn-based solder joints. Utilizing molecular dynamics to examine crystal growth from the melt in pure Sn systems, we determined that this process is best modeled using diffusion-limited growth (the Wilson Frenkel model). The anisotropy in growth from planar interfaces was characterized with values of kinetic growth coefficients for the , , and  directions. The roughness of the solid-liquid interfaces was characterized, and correlated with the measured growth coefficient values. These observations were compared with simulations of the growth of a Sn sphere in an undercooled melt.
||Electronic Materials, Phase Transformations, Modeling and Simulation