Presidential Young Investigator Award

总统青年研究员奖

• 批准号: 8957219
• 负责人: Peter Voorhees
• 金额: $ 13.98万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-06-01 至 1995-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8957219&HistoricalAwards=false
• 关键词: Presidential; Young; Investigator; Award

This research effort addresses deficiencies in our understanding of Ostwald ripening phenomena in elastically- stressed solids. The kinetics of the morphological development of misfitting coherent particles in solids is under examination. The mechanisms responsible for the experimentally observed highly nonuniform spatial distribution of misfitting particles are investigated through a detailed numerical solution to the equations describing the dynamics of the coarsening process. It is expected that the research will provide new insights into the dynamics of first-order phase transformations in coherent solids.

这项研究解决了我们对弹性应力固体中的Ostwald熟化现象理解上的不足。固体中失配的相干颗粒的形态发展的动力学正在研究中。通过对描述粗化过程动力学的方程的详细数值解，研究了导致实验观察到的失配颗粒高度不均匀的空间分布的机制。预计这项研究将对相干固体中一级相变的动力学提供新的见解。