An Investigation of the Chemistry of Model Extreme Pressure Lubricant Additives

详细了解极压润滑油添加剂的作用机制是分析和表面化学计划支持的该项目的研究重点。 威斯康星州-密尔沃基大学的Tysoe教授通过结合超高真空表面光谱测量、薄膜生长研究和模型系统的摩擦学研究来研究这些问题。 基于对本实验室先前开发的含氯极压润滑油添加剂的理解，本项目探讨了含硫和含磷添加剂的作用机理。 在这项工作中，这些材料的表面化学和它们作为润滑剂的操作之间的连接。 对摩擦学过程的详细微观理解在许多重要的技术领域中具有相当大的实用性，包括金属加工、磁头润滑和运输工业。 了解当一种材料在润滑剂分子存在下滑过另一种材料时发生的原子级过程是该项目研究的重点。 一系列模型润滑剂分子的表面光谱研究和摩擦力的直接测量相结合，将提供这种理解。 摩擦和磨损是表面科学的一个相对欠探索的领域，该项目的工作将有助于我们对这一技术重要领域的理解。

The detailed understanding of the mechanisms of action of extreme pressure lubricant additives is the focus of the research of this project supported in the Analytical and Surface Chemistry Program. Professor Tysoe at the University of Wisconsin- Milwaukee investigates these questions by using a combination of ultra high vacuum surface spectroscopic measurements, thin film growth studies, and tribological investigations of model systems. Building on the understanding of chlorine containing extreme pressure lubricant additives developed previously in this laboratory, this project explores the mechanisms of action of sulfur and phosphorous containing additives. A connection between the surface chemistry of these materials and their operation as lubricants is sought in this work. A detailed microscopic understanding of tribological processes is of considerable utility in a number of technologically important areas, including metalworking, disk head lubrication, and the transportation industries. Understanding the atomic level processes occurring when one material slides over another in the presence of a lubricant molecule is the focus of the research of this project. A combination of surface spectroscopic studies and direct measures of friction forces for a series of model lubricant molecules will provide this understanding. Friction and wear is a relatively underexplored area of surface science, and the work of this project will contribute to our growing understanding of this technologically important area.