Processes and Microstructures: A Symposium in Honor of

temperature capability of the heating-holder/x-ray detector system are needed. The use of smaller, brighter electron beams in state-of-the-art TEMs (31) can provide chemical resolutions approaching atomic dimensions. Having such direct morpho-logical information, combined with high–spatial resolution chemical analysis, illustrates the poten-tial for solving many important questions in crystallization science. Examples include whether the fundamental assumption of local equilibrium at solid-liquid interfaces in thermodynamic and kinetic models is valid, whether solid-liquid inter-face compositions change with crystal orienta-tion, and if segregation occurs at solid-liquid interfaces. Clarification of the formation mecha