Mechanics of Sandwich Nanostructures

三明治纳米结构的力学

• 批准号: 0409476
• 负责人: Hanchen Huang
• 金额: $ 20万
• 依托单位: Rensselaer Polytechnic Institute
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-15 至 2007-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0409476&HistoricalAwards=false
• 关键词: Mechanics; Sandwich; Nanostructures

Mechanics of Sandwich NanostructuresHanchen Huang and George Dvorak, Rensselaer Polytechnic InstituteThis project aims to determine the strain-structure relationship of a novel sandwich nanostructure. Based on self-organization, the Principal Investigator and his team have deposited Cu on SiO2 substrate. The Cu self-organizes into three layers: uniform 111 texture to porous 110 texture and back to uniform 111 texture, forming a novel sandwich structure with each layer being hundreds nanometers in thickness. Taking this sandwich structure as a prototype, the investigators will establish the strain-structure relationship by using a combination of atomistic simulations and multiscale micromechanics modeling. The scientific contribution of this project will be in the establishment of strain-structure relationship of nanoscale sandwich structures. The strain-structure relationship will enable one to design the sandwich structures (in terms of its layers thicknesses) and to apply it in various nanotechnologies. The broader impacts of this project include the education of graduate students, particularly those underrepresented, and the enrichment of graduate course Nanomechanics of Materials at RPI.

三明治纳米结构力学黄汉晨和乔治德沃夏克，伦斯勒理工学院本项目旨在确定一种新型三明治纳米结构的应变-结构关系。基于自组织，主要研究者和他的团队在SiO2衬底上沉积了Cu。Cu自组织成三层：均匀的111织构到多孔的110织构，再回到均匀的111织构，形成了一种新型的三明治结构，每层的厚度为数百纳米。以这种夹层结构为原型，研究人员将通过使用原子模拟和多尺度微观力学建模相结合来建立应变-结构关系。本计画的科学贡献将在于建立奈米三明治结构的应变-结构关系。应变-结构关系将使人们能够设计夹层结构（根据其层厚度）并将其应用于各种纳米技术。该项目的更广泛的影响包括研究生的教育，特别是那些代表性不足的学生，以及RPI材料研究生课程纳米力学的丰富。