Continued Ion Microprobe Studies of Lithium in Aluminum

这项研究的目的是关于基本问题， 铝锂合金的氧化行为和结构。 在 检查这些合金的过程，新的表征 二次离子质量技术是在二次离子质量的应用中发展起来的 光谱法（西姆斯）。 正在处理的具体领域包括： (1)铝锂合金的氧化行为 氧化物的成核、生长现象和锂 耗尽;（2）锂的扩散和溶质的再分配 合金;和（3）结构和化学表征 合金中的金属间相。 这项研究是中肯的 为了进一步开发这类重要的金属合金， 正在开发的表征技术是通用的 所有材料。 该计划是一项合作研究 芝加哥大学和利哈伊大学以及 美国国家标准研究所。

This research is aimed at fundamental questions regarding the oxidation behavior and structure of aluminum-lithium alloys. In the process of examining these alloys, new characterization techniques are developed in the use of Secondary Ion Mass Spectrometry (SIMS). Specific areas being addressed include: (1) oxidation behavior of aluminum-lithium alloys with emphasis on nucleation of the oxide, growth phenomena, and lithium depletion; (2) lithium diffusion and solute redistribution in the alloys; and (3) structural and chemical characterization of intermetallic phases in the alloys. This research is pertinent to further development of this important class of metal alloys, and the characterization techniques being developed are generic to all materials. The program is a collaborative research effort involving the Universities of Chicago and Lehigh and the National Institute of Standards.