Nanoengineered Interfaces

纳米工程接口

• 批准号: 0600675
• 负责人: Yuris Dzenis
• 金额: $ 25万
• 依托单位: University of Nebraska-Lincoln
• 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 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0600675&HistoricalAwards=false
• 关键词: Nanoengineered; Interfaces

Abstract: CMS-0600675 The objective of this research is the analysis of interfacial behavior of novel composites with fiber-matrix interfaces modified by nanoparticles. The project includes manufacturing of fibers with surfaces modified by nanoparticles, manufacturing of composites reinforced with nanomodified fibers, experimental evaluation of interfacial fracture and friction, and development of multiscale models of stress transfer, fracture, and friction in these materials. The research will provide better fundamental understanding of complex interfacial phenomena in heterogeneous materials and foster progress in methods of design and engineering of interfaces at nano- and microscales. If successful, this research can lead to improved lightweight composites with superior fracture toughness, fatigue durability, and impact resistance. Such composites will be usable in a variety of applications. The results will also be usable for other heterogeneous materials, such as polycrystalline materials and biological interfaces. Planned educational and outreach activities include support and research training of graduate and undergraduate students (the latter with support from NSF REU) and development of a new undergraduate/graduate course on nanocomposites.

摘要：CMS-0600675 本研究的目的是分析纳米粒子改性纤维-基体界面的新型复合材料的界面行为。该项目包括制造表面经过纳米颗粒改性的纤维、制造纳米改性纤维增强的复合材料、界面断裂和摩擦的实验评估，以及开发这些材料中的应力传递、断裂和摩擦的多尺度模型。该研究将为异质材料中的复杂界面现象提供更好的基础理解，并促进纳米和微米尺度界面设计和工程方法的进步。如果成功，这项研究可以改进轻质复合材料，使其具有优异的断裂韧性、疲劳耐久性和抗冲击性。此类复合材料可用于多种应用。研究结果也可用于其他异质材料，例如多晶材料和生物界面。计划的教育和推广活动包括对研究生和本科生（后者得到 NSF REU 的支持）的支持和研究培训以及开发关于纳米复合材料的新本科生/研究生课程。