Collaborative Research/GOALI - Ceramic Nanoparticle Reinforced Aluminum Matrix Composites: An Integrated Processing, Characterization and Modeling Approach

合作研究/GOALI - 陶瓷纳米颗粒增强铝基复合材料：集成加工、表征和建模方法

• 批准号: 0626150
• 负责人: Xin-Lin Gao
• 金额: $ 17.43万
• 依托单位: Texas A&M Engineering Experiment Station
• 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: 2006-10-01 至 2011-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0626150&HistoricalAwards=false
• 关键词: Collaborative; Research; GOALI; Ceramic; Nanoparticle

Collaborative Research/GOALI - Ceramic Nanoparticle ReinforcedAluminum Matrix Composites: An Integrated Processing, Characterizationand Modeling ApproachXin-Lin Gao, Texas A&M University, [e-mail] Li, University of Wisconsin-Madison, [e-mail] nanoparticle reinforced aluminum (Al) matrix composites would be significant for automobile, aerospace and numerous other applications. However, it is extremely difficult to uniformly disperse nano-sized ceramic particles in Al alloy melts. The proposed research seeks to make substantial advances in understanding such Al matrix nanocomposites through an integrated processing, characterization and modeling approach. Experimental studies will be conducted to optimize the ultrasonic cavitation based dispersion of ceramic nanoparticles into Al melts for solidification processing, to characterize micro/nano-structures of the as-fabricated bulk nanocomposites, and to measure the mechanical properties of the Al matrix nanocomposites. These experimental activities will be accompanied by multiscale modeling efforts involving molecular dynamics simulations, micromechanics and continuum mechanics, which will establish the structure-property relations of the nanocomposites. The successful completion of this project will lead to new knowledge of ultrasonic-assisted nanoparticle dispersion and solidification, nanocomposite characterization and testing, nanomechanics, and physics-based multiscale modeling. The novel technology, ultrasonic non-linear effects (cavitation and streaming) based solidification processing, to be further developed in the project, will enable the production of high performance bulk Al matrix nanocomposites. New course development will enable engineering students to access cutting-edge research facilities and new knowledge. Mentoring activities will attract and engage students from under-represented groups. Outreach activities will expose K-12 students, teachers and industries to advanced technologies and multiscale simulations. Collaboration with the GOALI partner will facilitate immediate nanotechnology transfer and have a direct impact on the U.S. economy.

协作研究/靶向 - 陶瓷纳米颗粒增强型矩阵复合材料：一种集成的处理，表征和建模aggxin-lin gao，德克萨斯州A＆M University，[e-mail] li AL）基质复合材料对于汽车，航空航天和许多其他应用将很重要。但是，将纳米尺寸的陶瓷颗粒均匀分散在AL合金熔体中是极其困难的。拟议的研究旨在通过集成的处理，表征和建模方法在理解此类AL矩阵纳米复合材料方面取得重大进展。将进行实验研究，以优化陶瓷纳米颗粒基于超声的空化分散体，以进行固化处理，以表征Al Matrix Nanocomposites的机械性能。这些实验活动将伴随着涉及分子动力学模拟，微观力学和连续性力学的多尺度建模工作，这些努力将建立纳米复合材料的结构 - 特质关系。该项目的成功完成将导致对超声辅助纳米颗粒分散和固化，纳米复合材料表征和测试，纳米力学以及基于物理学的多尺度建模的新知识。在项目中进一步开发的新型技术，即基于超声的非线性效应（空化和流媒体）的固化处理，将能够生产出高性能的AL矩阵纳米复合材料。新的课程开发将使工程专业的学生能够访问尖端的研究设施和新知识。指导活动将吸引并吸引来自代表性不足的团体的学生。外展活动将使K-12学生，教师和行业接触高级技术和多尺度模拟。与守门员合作伙伴的合作将促进直接的纳米技术转移，并直接影响美国经济。