MRI-R2: Development of Micro Tensile Tester Operated in Atomic Force Microscopy

MRI-R2：原子力显微镜微拉伸测试仪的开发

• 批准号: 0959605
• 负责人: Vijaya Chalivendra
• 金额: $ 2.78万
• 依托单位: University of Massachusetts, Dartmouth
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-04-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0959605&HistoricalAwards=false
• 关键词: MRI; R2; Development; Micro; Tensile

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).This micro-tensile tester will be used in testing various materials inside an atomic force microscope (AFM) to understand nano-scale material deformation and mechanical properties of the materials as a function of applied tensile load. The instrumentation will serve research efforts covering four academic departments at University of Massachusetts Dartmouth (UMassD): mechanical engineering, materials science, biomedical engineering & biotechnology, and civil & environmental engineering. The research efforts include investigations to study the effect of small tensile loads on displacement and deformation of conductive polymer grafted carbon nanotubes (CNTs) on electrical conductivity of polymer-CNT reinforced nanocomposite thin films, cell mobility in electro-spun nanofibers scaffolds; damage initiation and growth of electro-spun fiber scaffolds, fracture of epoxy hydrogel thin films reinforced with polyurethane fiber grid structure, and nano-surface embrittlement of ultraviolet and thermally degraded textile micron-sized fibers. The experimental research that will specifically address the issues associated with structural health monitoring, tissue engineering and textile industries. Another major impact of proposed micro-tensile tester lies in using it to provide research training and education opportunities to undergraduate and graduate students. Undergraduate students will be given research opportunities by supporting them through NSF-LSAMP research projects using the proposed equipment. UMassD will incorporate the research programs resulting from the acquisition of proposed equipment into the Freshman Summer Institute (FSI), an existing preparatory and outreach program where promising local college bound high school graduates study with faculty members on working projects.

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。这种微拉伸测试仪将用于在原子力显微镜（AFM）内测试各种材料，以了解纳米级材料的变形和材料的机械性能作为施加拉伸载荷的函数。该仪器将服务于马萨诸塞大学达特茅斯分校（UMassD）四个学术部门的研究工作：机械工程、材料科学、生物医学工程与生物技术以及土木与环境工程。研究内容包括：小拉伸载荷对导电聚合物接枝碳纳米管（CNTs）位移和变形的影响；聚合物-碳纳米管增强纳米复合材料薄膜电导率的影响；电纺纳米纤维支架中细胞迁移率的影响；电纺丝纤维支架的损伤萌生与生长，聚氨酯纤维网格结构增强环氧水凝胶薄膜的断裂，紫外线和热降解纺织微米纤维的纳米表面脆化。实验研究将具体解决与结构健康监测，组织工程和纺织工业相关的问题。所提出的微拉伸试验机的另一个主要影响在于使用它为本科生和研究生提供研究培训和教育机会。本科生将获得研究机会，通过NSF-LSAMP研究项目支持他们使用拟议的设备。马萨诸塞州立大学将把购买拟议设备所产生的研究项目纳入新生暑期学院（FSI），这是一个现有的准备和推广项目，有前途的当地大学高中毕业生与教师一起学习工作项目。