DMREF: Development of Fundamental Design Rules for Material-Liquid-Nanoparticulate Interfaces that Optimize Control of Friction, Adhesion, and Wear

DMREF：制定材料-液体-纳米颗粒界面的基本设计规则，优化摩擦、粘附和磨损的控制

• 批准号: 1535082
• 负责人: Donald Brenner
• 金额: $ 120万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-10-01 至 2021-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1535082&HistoricalAwards=false
• 关键词: DMREF; Development; Fundamental; Design; Rules

NON-TECHNICAL:This effort brings together chemistry, physics, engineering and statistics to develop a new class of lubricants composed of exceedingly-fine particles in different liquids that will improve upon the friction and wear reduction properties of traditional oil lubricants while significantly reducing their environmental impact. Effective control of friction, wear and adhesion has a vast range of applications that impact energy efficiency, national security, manufacturing, and the environment. Total frictional losses in a typical diesel engine, for example, exceed 10% of the total fuel energy. Reducing the losses to 1% would save roughly a billion gallons of diesel fuel in the U.S. alone. Furthermore, today's lubricants were developed in an era that focused on wear elimination over energy losses from friction, and did not consider environmental consequences. This effort also includes two public outreach activities, the first of which targets middle school students through job shadow opportunities and the second of which targets the general public through an entertaining citizen science learning module.TECHNICAL:A new approach for developing fundamental design rules for material-liquid-nanoparticulate interfaces that optimize control of friction, adhesion and wear will be developed that combines theory, simulation, statistics, material synthesis and characterization. Rational design and effective control of these properties will be transformative across many fields. The studies will pioneer new ground, delving into the quantum and sub-nanoscale origins of everyday frictional phenomena observed at macroscopic length scales. The approach is motivated by the challenge of identifying correlations between combinations of highly heterogeneous properties and processing conditions that correspond to tribological performance. More specifically, the project combines synergetic efforts of four groups: 1) multi-physics modelling of interfacial phenomena including electrostatics; 2) statistical approaches for predicting tribological performance of multi-component systems; 3) experimental studies of friction and adhesion at both macroscopic and nanometer scale lengths; and (4) fabrication and chemical functionalization of nanostructured materials and molecular spectroscopy tailored to specific applications.

非技术性：这项工作将化学、物理、工程和统计学结合在一起，开发出一种由不同液体中的超细颗粒组成的新型润滑油，它将在传统润滑油的减摩减磨性能基础上得到改善，同时显著减少其对环境的影响。有效控制摩擦、磨损和粘着具有广泛的应用，影响能源效率、国家安全、制造和环境。例如，在典型的柴油发动机中，总摩擦损失超过总燃料能量的10%。将损失减少到1%，仅在美国就可以节省大约10亿加仑的柴油。此外，今天的润滑剂是在一个专注于消除磨损而不是摩擦造成的能量损失的时代发展起来的，没有考虑环境后果。这项工作还包括两项公共推广活动，第一项是通过影子就业机会面向中学生，第二项是通过娱乐性的公民科学学习模块面向普通公众。技术：将结合理论、模拟、统计、材料合成和表征，开发一种新的方法来制定材料-液体-纳米关节界面的基本设计规则，以优化摩擦、粘合和磨损的控制。这些属性的合理设计和有效控制将在许多领域产生革命性的影响。这些研究将开辟新的领域，深入研究在宏观长度尺度上观察到的日常摩擦现象的量子和亚纳米尺度的起源。这种方法的动机是确定高度异质性能组合与与摩擦学性能相对应的工艺条件之间的相关性。更具体地说，该项目结合了四个小组的协同努力：1)包括静电学在内的界面现象的多物理建模；2)预测多组分系统摩擦学性能的统计方法；3)宏观和纳米尺度的摩擦和粘着实验研究；以及(4)为特定应用量身定做的纳米结构材料和分子光谱的制造和化学功能化。