Effects of Electromagnetic Radiation on the Plastic Deformation of II-VI Compounds

小行星9730304 本计画主要研究II-VI族材料的光塑性、位错运动与交互作用。大多数研究将与CdS和ZnSe进行，重点是识别和发展对X射线塑性效应（XPE）的物理机制的更好理解。在某些条件下，这种现象可导致显著的材料硬化，例如导致屈服应力加倍和塑性变形速率降低2至4个数量级。在这些研究中，这种效应将被用作研究位错运动机制的工具。 该项目主要解决材料物理学的研究问题。这项研究将为材料暴露于X射线时观察到的一种有点狭窄但独特的现象提供基础知识。从研究中获得的基本知识和理解可能有助于提高蓝色激光器和发光二极管（LED）等先进器件的性能和稳定性。 ***

9730304 Petrenko This project addresses photoplasticity, dislocation motion and interaction in II-VI materials. Most of the research will be conducted with CdS and ZnSe with emphasis on identifying and developing greater understanding of the physical mechanism of the x-ray plastic effect (XPE). Under certain conditions, this phenomenon can cause significant material hardening, for example causing a doubling of yield stress and a decrease in rate of plastic deformation by two to four orders of magnitude. In these studies, this effect will be used as a tool to study mechanisms of dislocation motion. %%% The project primarily addresses research issues in materials physics. The research will contribute basic knowledge at a fundamental level to a somewhat narrow, but unique phenomenon observed when materials are exposed to X-rays. The basic knowledge and understanding gained from the research may contribute to improving the performance and stability of advanced devices such as blue lasers and light emitting diodes (LEDs). ***