Microscale Origins of Wetting in Complex Systems

复杂系统中润湿的微观起源

• 批准号: 9411900
• 负责人: Stephen Garoff
• 金额: $ 27.45万
• 依托单位: Carnegie-Mellon University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-08-15 至 1997-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9411900&HistoricalAwards=false
• 关键词: Microscale; Origins; Wetting; Complex; Systems

9411900 Garoff Wetting of a surface by a fluid arises in many natural and technical settings. Despite its common occurrence, wetting is neither completely understood nor entirely controllable in technical processes. The open scientific questions arise from the sensitivity to the detailed physics and chemistry of the interfaces involved. Using optical, x-ray, and neutron techniques, the Principal Investigators will investigate wetting phenomena on both the macroscopic and microscopic scales. The proposal seeks to understand the origins of the complex, macroscopic wetting behavior within the microscopic structures of fluids confined by the interfaces at and near the contact line. % % % % Wetting of a surface by a fluid arises in many natural and technological settings such as recovery of fluid fossil fuels, film coating, and the processing of advanced composite materials. Despite its common occurrence, wetting is neither completely understood nor entirely controllable in technical processes. The program will study the microscopic origins of wetting processes using a variety of experimental techniques, including neutron and x-rays scattering performed at national facilities. Results of the proposed research will add to the scientific basis needed for engineering advanced materials and for other technological processes dominated by wetting. ***

9411900加罗夫在许多自然和技术环境中，表面被流体润湿。尽管润湿现象很常见，但在技术过程中既不能完全理解也不能完全控制。开放的科学问题产生于对所涉及的界面的详细物理和化学的敏感性。利用光学、x射线和中子技术，主要研究人员将在宏观和微观尺度上研究润湿现象。该提案试图理解复杂的起源，宏观润湿行为在接触线和附近的界面限制流体的微观结构。% % % %流体对表面的润湿在许多自然和技术环境中都会出现，例如流体化石燃料的回收、薄膜涂层和高级复合材料的加工。尽管润湿现象很常见，但在技术过程中既不能完全理解也不能完全控制。该项目将使用多种实验技术研究润湿过程的微观起源，包括在国家设施中进行的中子和x射线散射。拟议的研究结果将为工程先进材料和以润湿为主的其他技术过程提供所需的科学基础。＊＊＊