CAREER: Fundamental Investigations of Electronic Contributions to Friction

9876042 perrycareer奖下的研究项目旨在阐明与界面摩擦相关的能量耗散的电子途径的相对重要性。它涉及原子尺度上存在于原子清洁金属和导电氧化物表面的摩擦力的基本测量。这项研究将需要测量在化学、声子和电子结构被很好地理解的条件下，单粗糙接触的摩擦。这项工作将确定摩擦能通过接触体的电子激发而耗散的条件。教育活动包括开发专门为工科学生设计的本科化学入门课程。讲座和实验资源都将侧重于材料的原子或分子观点及其与物理性质的关系。这一努力的目标是满足目前大学入门级化学和工程课程不断变化的课程需求

9876042PerryThe research program under this CAREER award seeks to elucidate the relative importance ofelectronic pathways of energy dissipation associated with interfacial friction. It involves the fundamental measurement on an atomic scale of frictional forces present at the surface of atomically clean metals and conducting oxides. The studies will entail measurements of friction for single asperity contacts under conditions in which the chemical, phonon, and electron structure of the interface is well understood. The work will establish the conditions under which frictional energy can be dissipated through the excitation of electrons of the contacting bodies. The educational activities involve the development of an undergraduate introductory chemistry curriculum designed specifically for engineering students. Both lecture and laboratory resources will be developed which focus on an atomic or molecular view of materials and their relation to physical properties. The objective of this effort is to meet the currently changing curriculum needs of the chemistry and engineering programs at the introductory college level.***