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，以了解纳米级材料变形和材料的机械性能与所施加拉伸载荷的函数关系。该仪器将为马萨诸塞大学达特茅斯分校 (UMassD) 四个学术系的研究工作提供服务：机械工程、材料科学、生物医学工程和生物技术以及土木和环境工程。研究工作包括研究小拉伸载荷对导电聚合物接枝碳纳米管（CNT）的位移和变形的影响，对聚合物-CNT增强纳米复合薄膜的导电性、电纺纳米纤维支架中的细胞迁移率的影响；电纺纤维支架的损伤引发和生长、聚氨酯纤维网格结构增强的环氧水凝胶薄膜的断裂以及紫外线和热降解纺织微米级纤维的纳米表面脆化。该实验研究将专门解决与结构健康监测、组织工程和纺织工业相关的问题。所提出的微拉伸测试仪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，通过使用拟议设备的 NSF-LSAMP 研究项目来支持他们。麻州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），这是一个现有的预备和外展项目，当地有前途的大学高中毕业生可以与教职员工一起研究工作项目。