Application of in situ Laser Spectroscopic Techniques to Fundamental Problems in Tribology

将对在摩擦学表面力显微镜中进行原位激光光谱测量的可行性进行实验研究。这可以确定滑动表面分子薄膜中的分子行为和微观流动，并有助于更好地了解边界润滑膜和其他薄分子层的性质。初步实验的目的是确定各种激光感应信号的检测极限，这些信号来自小接触面积，并受到表面力显微镜设计的物理约束。将使用由朗缪尔沉积的选定的长链分子层。研究结果将被用于设计一种性能显著提高的表面力显微镜。

An experimental study will be conducted of the feasibility of performing .;.in situ>;> laser spectroscopic measurements in a tribological surface force microscope. This could allow determination of molecular behavior and micro.flows in molecularly thin films on sliding surfaces and lead to better understanding of the properties of boundary lubrication films and other thin molecular layers. Initial experiments are aimed at determining detection limits for a variety of laser.induced signals originating from the small contact area and under the physical constraints enforced by the design of the surface force microscope. Selected long.chain molecular layers, deposited by the Langmuir.Blodgett technique will be used. The results will be used to design a surface force microscope with significantly improved capabilities.