US-Egypt Cooperative Research: Development of Zn-based syntactic composite foams for high energy absorption applications

美国-埃及合作研究：开发用于高能量吸收应用的锌基复合材料泡沫

• 批准号: 1445686
• 负责人: Nikhil Gupta
• 金额: $ 9.46万
• 依托单位: New York University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-10-01 至 2018-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1445686&HistoricalAwards=false
• 关键词: US; Egypt; Cooperative; Research; Development

This project supports a cooperative research effort by Dr. Nikhil Gupta, Polytechnic University of New York with Dr. Atef Daoud, Central Metallurgical Research and Development Institute, Helwan, Egypt. They will study "Casting and Characterizations of Zn alloy Based Composite Foams for High Energy Absorption". The goal of the project is to develop light-weight and low-cost energy absorbing foams that are useful in a variety of industrial applications. These foams will be manufactured using fly ash, thereby recycling an industrial waste material while also reducing cost. The study will focus on developing a low cost synthesis method for Zn-alloy composite foam, characterizing the synthesized composites for a wide variety of loading conditions and applications, and studying the failure mechanisms. The high density of Zn-alloys is a limitation in several significant applications, so the development of lightweight composite foams will help broaden the applications for these materials. The use of fly ash cenospheres as hollow particles will provide a valuable mechanism to use this industrial waste material and also reduce the cost of the composite. The synthesis work will be led by the Egyptian team, working on producing composites containing high volume fraction of fly ash cenospheres (up to 50% in volume). The characterization will be led by the American team and will include compressive, tensile, vibration, impact, and high strain rate compressive testing of materials. Numerical simulations will be conducted on the composite foam microstructure to obtain an estimate of the mechanical properties. Both groups have complementary expertise and facilities to help ensure the effectiveness of this collaboration. The key intellectual merits of the project include development of lightweight Zn-alloy composites, understanding of mechanical properties of Zn-alloy composites and their strain rate sensitivity, and knowledge of failure mechanisms of these composite foams. It is potentially very valuable to develop a low cost material that is also lightweight enough for many industrial applications.This project's broader impacts include the cross cultural exchange and intellectual development produced by bringing the complementary expertise of these two teams from two countries together. The training of undergraduate and graduate students as well as junior scientists on both teams will be very valuable. The U.S. team will also integrate an education component with the research, building upon existing collaborations to develop a k-12 educational video, and both teams will ensure a wide dissemination of the research results. This project is funded through the US-Egypt Joint Science and Technology Fund Program. Support for the U.S. side of these cooperative projects is provided to the National Science Foundation by the U.S. Department of State. The Egyptian Government provides support for the Egyptian side of the collaboration.

该项目支持纽约理工大学Nikhil Gupta博士与埃及Helwan中央冶金研究与发展研究所的Nikhil Gupta博士。他们将研究“基于Zn合金的复合泡沫的铸造和表征，以获得高能吸收”。该项目的目的是开发轻巧和低成本的吸收泡沫，这些泡沫在各种工业应用中都有用。这些泡沫将使用粉煤灰制造，从而回收工业废料，同时还会降低成本。该研究将着重于为Zn合金复合泡沫开发低成本合成方法，以表征用于多种负载条件和应用的合成复合材料，并研究故障机制。在几种重要的应用中，Zn合金的高密度是一个限制，因此，轻质复合泡沫的开发将有助于扩大这些材料的应用。将粉煤灰芯球用作空心颗粒将提供使用这种工业废料并降低复合材料成本的宝贵机制。合成工作将由埃及团队领导，致力于生产含有大容量的粉煤灰曲圈（体积高达50％）的复合材料。该表征将由美国团队领导，包括压缩，拉伸，振动，撞击和高应变速率材料压缩测试。数值模拟将在复合泡沫微结构上进行，以获得机械性能的估计。这两个小组都有互补的专业知识和设施，以帮助确保这项合作的有效性。该项目的关键智力优点包括开发轻量级的Zn合金复合材料，对Zn合金复合材料的机械性能及其应变率敏感性的理解以及对这些复合泡沫失败机制的了解。开发低成本材料也足够轻巧对于许多工业应用来说是非常有价值的。该项目的更广泛的影响包括通过将这两个团队的互补专业知识融合在一起而产生的跨文化交流和智力发展。对两支球队的本科和研究生以及初级科学家的培训将非常有价值。美国团队还将基于现有的合作来开发K-12教育视频，将教育组成部分与研究组合，并且两个团队都将确保对研究结果进行广泛的传播。该项目是通过美国埃及联合科学技术基金计划资助的。美国国务院向美国国家科学基金会提供了对这些合作项目的支持。埃及政府为合作的埃及方面提供了支持。