Processing of Fully-Dense Nanocomposites through Novel Design
通过新颖的设计加工全致密纳米复合材料
基本信息
- 批准号:1560850
- 负责人:
- 金额:$ 34.45万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2016
- 资助国家:美国
- 起止时间:2016-08-01 至 2022-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Combustion Synthesis is a manufacturing process that utilizes the chemical energy produced from a reaction between powders during heating. Such internally produced chemical energy can avoid the use of an energy-intensive heating furnace, thus reducing energy consumption during manufacturing. Combustion Synthesis has been used to form many advanced materials including ceramics, intermetallics and composites. So far, this advantageous process of combustion synthesis has generally not been capable of producing pore-free high-strength composites and nanocomposites, except by pressing the materials during manufacturing, and/or using an additional manufacturing step to fully form the material. These are extra energy-intensive and costly steps. This award supports fundamental research to design powders and powder compacts which can form strong pore-free composites and stronger pore-free nanocomposites in only one rapid reaction step, thus eliminating the need for any extra costly and energy-intensive manufacturing steps. The benefits to society will be significant, as there are many materials that can be produced using this process, and they have applications in the aerospace, automotive, biomedical and energy industries. The research project involves the participation of underrepresented and economically disadvantaged students in the research and educational activities, thus engineering education will also be positively impacted. This research tackles the long-standing Combustion Synthesis problems of residual porosity and inhomogeneity from a new fundamental scientific standpoint. Specifically, the influence of powder and powder compact multi-scale design on the densification and homogenization mechanisms in combustion synthesis will be investigated. A fundamental understanding of the effects of defect concentrations on the rapid synthesis and homogenization of nanocomposites with or without external field will be established for materials that generate a liquid phase during the reaction. The research will fulfill a previously thought to be impossible task of producing full or near-full density homogeneous composites and nanocomposites via combustion synthesis without the application of external pressure or post processing heat treatments. Through in-depth characterization and mechanical properties investigations, the research will also establish the processing-microstructure-properties relations for these new materials.
燃烧合成是一种利用加热过程中粉末之间反应产生的化学能的制造工艺。这种内部产生的化学能可以避免使用能源密集型加热炉,从而减少制造过程中的能源消耗。燃烧合成已被用于形成许多先进材料,包括陶瓷、金属间化合物和复合材料。到目前为止,这种有利的燃烧合成方法通常不能生产无孔的高强度复合材料和纳米复合材料,除非在制造过程中压制材料,和/或使用额外的制造步骤来完全形成材料。这些都是额外的能源密集型和昂贵的步骤。该奖项支持设计粉末和粉末压块的基础研究,这些粉末和粉末压块可以在一个快速反应步骤中形成坚固的无孔复合材料和更坚固的无孔纳米复合材料,从而消除了任何额外昂贵和能源密集型制造步骤的需要。对社会的好处将是显着的,因为有许多材料可以使用这个过程中生产,它们在航空航天,汽车,生物医学和能源行业的应用。该研究项目涉及代表性不足和经济困难的学生参与研究和教育活动,因此工程教育也将受到积极影响。该研究从新的基础科学观点出发,解决了长期存在的残余孔隙和不均匀性燃烧合成问题。具体而言,粉末和粉末压坯多尺度设计的致密化和均匀化燃烧合成机制的影响将进行研究。缺陷浓度对纳米复合材料的快速合成和均匀化有或没有外部场的影响的基本理解将建立在反应过程中产生液相的材料。这项研究将完成以前认为不可能完成的任务,即通过燃烧合成生产全密度或接近全密度的均匀复合材料和纳米复合材料,而无需施加外部压力或后处理热处理。通过深入的表征和力学性能研究,该研究还将建立这些新材料的加工-组织-性能关系。
项目成果
期刊论文数量(0)
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科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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{{ truncateString('K Morsi', 18)}}的其他基金
Accessibility of Materials Laboratory Experience for Engineering Undergraduates
工程本科生获得材料实验室经验的机会
- 批准号:
0837162 - 财政年份:2009
- 资助金额:
$ 34.45万 - 项目类别:
Standard Grant
Novel Current-Activated Tip-based Sintering (CATS)
新型电流激活尖端烧结 (CATS)
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0826532 - 财政年份:2008
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$ 34.45万 - 项目类别:
Standard Grant
U.S.-Egypt Cooperative Research: Carbon-Nanotube Reinforced Aluminium Composites- A Dual Matrix Approach
美国-埃及合作研究:碳纳米管增强铝复合材料——双基体方法
- 批准号:
0710869 - 财政年份:2007
- 资助金额:
$ 34.45万 - 项目类别:
Standard Grant
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