NSF/Sandia: Controlling Liquid Motions in Nanoenvironments Using Mechanical, Thermal, and Electrical Methods

NSF/Sandia：使用机械、热和电方法控制纳米环境中的液体运动

• 批准号: 0623973
• 负责人: Yu Qiao
• 金额: $ 23.4万
• 依托单位: University of Akron
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-01 至 2007-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0623973&HistoricalAwards=false
• 关键词: NSF; Sandia; Controlling; Liquid; Motions

ABSTRACT: 0623973The proposed study will be focused on the experimental measurements of liquid motions in nanopores as mechanical loadings, temperature gradients or fluctuations, or electric fields are applied. The sorption isotherm curves of a variety of nanoporous materials, such as nanoporous carbon, zeolite and zeolite-like materials, nanoporous silica and alumina, etc., will be analyzed through a set of infiltration and defitltration tests. This research will shed light on the complicated interactions among solid, liquid, gas, and interface phases in nanoenvironments, which remain relatively un-investigated in the framework of conventional interface and surface theories. It is envisioned that, at the nanometer scale, due to the confinement size effect and the mass/energy exchange, the liquid behaviors would be fundamental different from that at the macroscopic level, e.g. the ordinary capillary effect or absorption phenomena. The proposed research efforts will also provide a solid scientific basis for developing advanced energy absorption structures, small-sized and high-power-density intelligent structures, among others, which is immensely important to the domestic economy, especially for the aerospace, automobile, military, and national security industries. For instance, the energy absorption systems can be used to develop high-performance soldier armors; the electrically or thermally controllable actuation systems can be applied for next-generation shape-changing aircrafts. Together with the proposed basic research, a matching education program will also be carried out, which will considerably enhance the exposure of study of nanomaterials to high-school students, college students, graduate-school students, as well as the general public.

摘要：0623973 拟议的研究将重点关注在施加机械载荷、温度梯度或波动或电场时纳米孔中液体运动的实验测量。通过一系列渗透和脱滤试验，分析多种纳米多孔材料的吸附等温线，例如纳米多孔碳、沸石和类沸石材料、纳米多孔二氧化硅和氧化铝等。这项研究将揭示纳米环境中固体、液体、气体和界面相之间复杂的相互作用，而这些相互作用在传统界面和表面理论的框架中仍然相对未经研究。可以预见，在纳米尺度上，由于限制尺寸效应和质量/能量交换，液体行为将与宏观水平上的行为有根本的不同，例如。普通的毛细管效应或吸收现象。拟议的研究工作还将为开发先进吸能结构、小型高功率密度智能结构等提供坚实的科学基础，这对国内经济特别是航空航天、汽车、军事和国家安全行业具有极其重要的意义。例如，能量吸收系统可用于开发高性能士兵装甲；该电控或热控驱动系统可应用于下一代变形飞机。与拟议的基础研究一起，还将开展配套的教育计划，这将大大提高高中生、大学生、研究生以及公众对纳米材料研究的了解。