权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Understanding the Frictional Properties of Boundary Films

了解边界膜的摩擦特性

基本信息

批准号：
0826151
负责人：
Wilfred Tysoe
金额：
$ 30万
依托单位：
University of Wisconsin-Milwaukee
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2008
资助国家：
美国
起止时间：
2008-08-15 至 2012-01-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0826151&HistoricalAwards=false
关键词：
Understanding Frictional Properties Boundary Films

项目摘要

The research objective of this award is to provide a fundamental understanding of the frictional properties of thin inorganic films on metal substrates. Such films are relevant to coatings or reactively deposited films that are formed on surfaces by reaction with lubricant additives. The research strategy involves making precise measurements of frictional forces on well-defined thin films that are grown and characterized under ultrahigh vacuum conditions. This ensures that clean and well-characterized films are studied and that their surfaces remain clean to ensure that precise and reproducible experimental measurements are made. These results will be modeled at the atomic scale using quantum mechanical calculations to understand the frictional behavior and the experimental systems have been selected such that they are sufficiently simple that they can be fully modeled using this strategy. The ultimate goal of the research is thus to understand, at a fundamental molecular level, the origins of sliding friction and the mechanisms by which energy is dissipated during sliding. If successful, the results of this research will provide fundamental insights into the requirements for fabricating low-friction coatings and to enable the chemistry of lubricant additives to be designed to form coatings with targeted frictional properties. The results will be disseminated by publication in peer-reviewed journals and will be presented at national and international conferences and will thus be widely available to coatings and lubricant manufacturers. The results will also be communicated directly to local lubricant manufacturers. Graduate and undergraduate students and in physics and chemistry will benefit from an interdisciplinary project involving a close interplay between theory and experiment on a project that has real-world applications.

该奖项的研究目标是提供对金属衬底上无机薄膜摩擦特性的基本理解。这种薄膜与通过与润滑剂添加剂反应在表面上形成的涂层或反应性沉积薄膜有关。研究策略包括精确测量在超高真空条件下生长和表征的定义良好的薄膜上的摩擦力。这确保了研究干净和特征良好的薄膜，并确保其表面保持清洁，以确保进行精确和可重复的实验测量。这些结果将在原子尺度上建模，使用量子力学计算来理解摩擦行为，实验系统已经被选择，这样它们就足够简单，可以使用这种策略来完全建模。因此，研究的最终目标是在基本的分子水平上理解滑动摩擦的起源和滑动过程中能量耗散的机制。如果成功，这项研究的结果将为制造低摩擦涂层提供基本的见解，并使润滑油添加剂的化学成分能够设计成具有目标摩擦性能的涂层。研究结果将在同行评议的期刊上发表，并将在国家和国际会议上提出，因此将广泛提供给涂料和润滑剂制造商。调查结果也将直接传达给当地的润滑剂制造商。物理和化学专业的研究生和本科生将受益于一个跨学科的项目，该项目涉及理论和实验之间的密切相互作用，并具有实际应用。