Continued Ion Microprobe Studies of Lithium in Aluminum

铝中锂的持续离子微探针研究

• 批准号: 9015868
• 负责人: Riccardo Levi-Setti
• 金额: $ 27.9万
• 依托单位: University of Chicago
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-04-15 至 1994-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9015868&HistoricalAwards=false
• 关键词: Continued; Ion; Microprobe; Studies; Lithium

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.

本研究旨在探讨铝锂合金的氧化行为和结构等基本问题。在研究这些合金的过程中，利用二次离子质谱法（SIMS）开发了新的表征技术。研究的具体领域包括：(1)铝锂合金的氧化行为，重点是氧化物的成核、生长现象和锂耗尽；(2)锂在合金中的扩散和溶质重分布；(3)合金中金属间相的结构和化学表征。本研究对这类重要金属合金的进一步发展具有重要意义，并且所开发的表征技术对所有材料都是通用的。该项目是芝加哥大学和利哈伊大学以及美国国家标准研究所的合作研究成果。