Quantitative Microanalysis of Lithium and Beryllium Intermetallics

锂和铍金属间化合物的定量微量分析

• 批准号: 8905459
• 负责人: David Williams
• 金额: $ 34.7万
• 依托单位: Lehigh 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 1992-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8905459&HistoricalAwards=false
• 关键词: Quantitative; Microanalysis; Lithium; Beryllium; Intermetallics

Several fundamental issues concerning intermetallic alloys are addressed in this research. Electron energy loss spectrometry (EELS) is used to measure the lithium content in aluminum-lithium intermetallic phases to determine the degree of lithium loss during processing and analysis. A parallel detector provides faster collection of data and better statistics for chemical analysis. The aluminum-rich corner of the phase equilibrium diagram for aluminum-lithium-copper and phase equilibria in the titanium-beryllium system are under investigation. The composition of second phases precipitates and segregation behavior of alloying elements are considered.

本研究探讨了金属间合金的几个基本问题。电子能量损失光谱法（EELS）用于测定铝锂金属间相中锂的含量，以确定加工和分析过程中锂的损失程度。平行检测器为化学分析提供更快的数据收集和更好的统计。研究了铝-锂-铜相平衡图的富铝角和钛-铍体系的相平衡。考虑了第二相析出物的组成和合金元素的偏析行为。