Static and Dynamic Wettability: Contact Angles and Their Microscopic Origins

这个项目涉及的基本，微观方面的 液体在固体表面上的润湿和扩散。 理解 控制这些现象既提出了科学问题， 技术问题。 静态和动态现象将 在宏观和微观尺度上进行了探索， 光学、X射线和中子技术。 其中一个目标是了解 宏观接触角的行为及其对 所涉及的材料的性质。 另一个目标是 理解宏观行为的起源， 流体的微观结构和动力学 接触线处和附近的界面，即流体 体终止于固体表面。 拟议研究的结果 将提高对基本润湿现象的理解， 将增加工程所需的科学基础 以润湿为主的先进材料和工艺 和传播。

This project deals with fundamental, microscopic aspects of the wetting and spreading of fluids on solid surfaces. Understanding and controlling these phenomena pose both scientific questions and technological problems. Static and dynamic phenomena will be probed on both the macroscopic and microscopic scales using optical, x-ray and neutron techniques. One goal is to understand the behavior of macroscopic contact angles and their dependence on properties of the materials involved. A further goal is to understand the origins of the macroscopic behavior with the microscopic structures and dynamics of fluids confined by the interfaces at and near the contact line, the point where the fluid body ends at the solid surface. Results of the proposed research will improve the understanding of fundamental wetting phenomena and will add to the needed scientific basis needed for engineering advanced materials and technological processes dominated by wetting and spreading.