Surface Interactions Associated with Contact and InterfacialFracture

9522964 Liechti这个项目是为了确定可能发生表面相互作用的裂纹面的性质和力与分离规律。一种可能是在新表面形成的过程中发生了接触通电。本文将采用实验/数值相结合的方法提取新开裂界面、滑动接触界面和非滑动接触界面的力分离数据。这些将由电荷和电子发射的测量来补充，以确定静电效应是否涉及表面相互作用。在这项工作中获得的知识有望用于预测微电子器件，涂层和粘合接头的耐久性。＊＊＊

9522964 Liechti This project is to determine the nature of and the force vs. separation laws for crack faces where surface interactions may be occurring. One possibility is that contact electrification may be taking place during the formation of the new surfaces. A combined experimental/numerical approach will be used to extract the force separation data for freshly cracked interfaces and those interfaces that have been brought into sliding contact and non-sliding contact. These will be complemented by measurements of charging and electron emission in order to determine if electrostatic effects are involved in the surface interactions. The knowledge obtained in this work is expected to be useful in predicting the durability of microelectronic devices, coatings and adhesively bonded joints. ***