GOALI: Aerosol processing of metal powders from multiphase precursors

GOALI：对来自多相前驱体的金属粉末进行气溶胶处理

• 批准号: 1336581
• 负责人: Sheryl Ehrman
• 金额: $ 32.5万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-08-01 至 2017-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1336581&HistoricalAwards=false
• 关键词: GOALI; Aerosol; processing; metal; powders

1336581PI: EhrmanSpray pyrolysis processes can be used to make unique materials not accessible via traditional precipitation or vapor deposition processes. Additional advantages include scalability and solvent free final product powders. Aerosol production of oxidation resistant materials such as silver and palladium has been demonstrated, but extension to lower cost base metals on an industrial scale has been challenging. The objective of this project is to develop a mixed-phase spray pyrolysis route for producing multicomponent base metal powders with increased protection against oxidation, for printable electronics applications including hybrid integrated circuitry and metallization of solar cells. Spray pyrolysis will be used to achieve kinetic control of microstructure, enabling formation of particles that cannot be made by other means. The test bed will be particles that contain both copper and copper/tin alloy, but the processing approach will be broadly applicable to other material systems. A team consisting of student, faculty and industrial researchers from DuPont and the University of Maryland will conduct experimental and simulation based studies to overcome technical hurdles associated with mixed phase powder processing. This team draws upon University of Maryland expertise in chemical engineering, materials characterization and aerosol technology and DuPont expertise in materials chemistry, powder processing, and statistical design of experiments.Results of this work will enable incorporation of low cost base metals into conductive pastes, leading to overall reductions in cost for solar cells, electronics and medical devices. Use of aerosol based production routes for metal powders will realize additional environmental and cost benefits over conventional precipitation-based processes. Elements of the value added by this project include: (1) fusion of industrial and academic perspectives (2) interactions between industry and university researchers and students that will allow participation at all stages from laboratory innovation to applications testing and (3) interjection of real world elements into activities and research experiences for pre-college and undergraduate students.

1336581PI：Ehrmanspray热解过程可用于使无法通过传统降水或蒸气沉积过程获得独特的材料。其他优点包括可扩展性和溶剂免费最终产品粉末。已经证明了抗氧化材料（例如银和钯）的气溶胶产生，但在工业规模上扩展到较低的成本基准金属一直具有挑战性。 该项目的目的是开发一种混合相喷射热解途径，用于生产具有可打印的电子应用，包括混合整合电路和太阳能电池的金属化，以产生多组分基金属粉末，以增加防氧的保护。喷雾热解将用于实现微观结构的动力学控制，从而实现无法通过其他方式制造的颗粒。测试床将是包含铜和铜/锡合金的颗粒，但是处理方法将广泛适用于其他材料系统。由杜邦和马里兰大学的学生，教职员工和工业研究人员组成的团队将进行基于实验和模拟的研究，以克服与混合相粉末处理相关的技术障碍。 该团队借鉴了马里兰大学化学工程，材料表征和气溶胶技术方面的专业知识以及杜邦材料化学，粉末加工和实验统计设计方面的专业知识。这项工作的重新设计将使低成本基准金属能够将低成本基准金属纳入导电糊状，从而导致Solar，电子电池，电子和医疗设备的成本总体降低。将基于气溶胶的生产路线用于金属粉末将实现与常规降水过程相比，将实现额外的环境和成本益处。该项目添加的值的要素包括：（1）工业和学术观点的融合（2）工业与大学研究人员和学生之间的相互作用，这些互动将允许从实验室创新到应用测试的各个阶段参与，以及（3）现实世界中的元素注入现实世界中的活动和研究经验的预科和研究生。