Multicomponent Systems

本研究考察了二元和三元合金的相稳定性。采用同步加速器x辐射小角散射分析了薄膜中的扩散和相分离。采用改进的加工方法制备了多层薄膜，并用分析电镜、相图和扩散实验对多层薄膜进行了表征。研究了铝锂合金体系的热力学，确定了影响性能的亚稳相分解反应。有序的量子力学预测正被扩展到三元体系。

This research examines phase stability in binary and ternary alloys. Synchrotron x-radiation small angle scattering is employed to analyze diffusion and phase separation in thin films. An improved processing method produces multilayer thin films, which are characterized by analytical electron microscopy in phase diagram and diffusion experiments. The thermodynamics of the aluminum-lithium alloy system are examined to determine metastable phase decomposition reaction that could affect properties. Quantum mechanical prediction of ordering are being extended to ternary systems.