Laser Raman Microprobe Spectroscopy, Molecular Dynamics Simulation and Tribology of Boundary-Lubricated Solid Surfaces

激光拉曼微探针光谱、分子动力学模拟和边界润滑固体表面的摩擦学

• 批准号: 9414783
• 负责人: Nannaji Saka
• 金额: $ 32.87万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-12-01 至 1997-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9414783&HistoricalAwards=false
• 关键词: Laser; Raman; Microprobe; Spectroscopy; Molecular

9114783 Saka A Study of the nature of boundary lubricant films will be undertaken by a combination of laser Raman microprobe spectroscopy of wearing surfaces, friction and wear experiments, and molecular dynamic simulations of the lubricant-solid interface. The Raman spectra will be used to determine coverage, orientation, and structural stability of the molecules over a wide range of normal pressures and temperatures and the results will be used as input to the molecular dynamics model. The configuration of the lubricant macromolecules that lead to a stable boundary lubricant film will be determined and visualized. ***

9114783 SAKA将结合磨损表面的激光拉曼显微探测光谱、摩擦磨损实验和润滑剂-固体界面的分子动力学模拟来研究边界润滑膜的性质。拉曼光谱将被用来确定分子在广泛的常压和温度范围内的覆盖率、取向和结构稳定性，结果将被用作分子动力学模型的输入。形成稳定的边界润滑膜的润滑剂大分子的构型将被确定和可视化。***