CAREER: Control of Solidification Morphology and Microstructure Using Combined Electric and Magnetic Fields: Experiment and Modeling

在许多传统的和先进的材料加工过程中都会发生凝固现象。微结构的形成决定了材料的质量及其电、磁和光学性能。将对Bridgman系统中的晶体生长进行迭代的实验-理论-模型研究。将开发一种方法，利用电场和磁场的联合作用，有效地控制共晶凝固过程中的材料形态和组织。将建立一个由本科生直接参与的晶体生长虚拟实验室。这项研究将试图促进对电场和磁场对凝固过程影响的基本理解。预计将发现新的方法，用于半导体工业，通过控制工艺参数来实现形态控制和微结构的细化和排列，以及物理性能的优化。虚拟实验室的出现使学生能够利用先进的设备进行培训，这对进一步推进工程教育具有重要意义。

AbstractSolidification occurs in many traditional and advanced materials processes. The quality of the materials and their electrical, magnetic and optical properties are determined by microstructure formation. An iterative experiment-theory-modeling research will be conducted for crystal growth in Bridgman systems. A methodology will be developed that can effectively control the materials morphology and microstructure during eutectic solidification utilizing combined electric and magnetic fields. A virtual laboratory on crystal growth will be developed with direct involvement of undergraduate students.This research will attempt to advance the fundamental understanding of the influence of electric and magnetic fields on solidification processes. It is anticipated that new methodologies will be discovered for semiconductor industries to achieve morphological control and micro-structural refinement and alignment as well as the optimization of physical properties through control of the process parameters. The availability of the virtual laboratory makes it possible to train students in utilizing advanced facilities, which is important in furthering education in engineering.