IRES: US-Germany collaboration to advance research and education in materials for extreme environments

IRES：美德合作推进极端环境材料的研究和教育

• 批准号: 1460045
• 负责人: Seetha Raghavan
• 金额: $ 24.99万
• 依托单位: The University of Central Florida Board of Trustees
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-06-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1460045&HistoricalAwards=false
• 关键词: IRES; US; Germany; collaboration; advance

Part 1Ceramics and Ceramic matrix composites have demonstrated promise in the quest for performance under hypersonic conditions related to sub-orbital and reusable space vehicles. This IRES will provide a 10-week summer session every year for 3 years, to enable 4 US students annually, both at the graduate and undergraduate levels, to acquire knowledge in manufacturing, testing and simulation of advanced material systems exhibiting durability in extreme environments. Through the program, students experience large-scale facilities at DLR Aerospace in Cologne, Germany, including materials manufacturing and testing systems to design and develop experimental samples. This experience offers joint participation of US and German researchers in synchrotron studies at the Argonne National Laboratory with mentorship from both German and US-based scientists. Students will gain a rare insight into the full cycle of emerging materials research. Research outcomes have long terms societal benefits in creating a new class of materials for next generation energy, propulsion and transportation needs. The educational broader impact of the international collaborative research is achieved through i) an exchange of knowledge of high resolution techniques in processing, experimentation and simulation ii) opportunities for students at the graduate and undergraduate levels to experience collaborative research in highly advanced facilities focused on each expertise with mentoring from highly trained scientists as well as peer mentoring between graduate and senior undergraduate students, iii) a pre-trip German Engineering Exchange (GEEx) activity with local high school students (taking German language) teaching basic German Language in exchange for engineering activities organized by the participants. Research opportunities in Germany will be shared with the rising freshmen through this activity. Part 2This IRES project facilitates international experiences for students, through collaborative research between the German Aerospace Center (DLR) and the University of Central Florida (UCF), in support of the search for materials that can sustain extreme physical and mechanical environments applicable to hypersonic and reusable space vehicles. DLR's expertise in advanced processing of high temperature ceramics and ceramic matrix composites will complement UCF's unique capability to capture the mechanics of these complex layered material systems directly, under operational and real environments. The research enables investigation of the strain evolution in these materials over thermal-mechanical or thermal gradient-mechanical cycles, crack propagation under extreme environments and effects of geometry on strain and damage propagation through in-situ synchrotron measurements conducted by the UCF and DLR researchers in partnership with Argonne National Laboratory. The results will enable fundamental knowledge on the mechanical properties and behavior of these materials with outcomes that have the potential to extend operational capacity and durability under high temperature.

陶瓷和陶瓷基复合材料在亚轨道和可重复使用航天器的高超音速条件下的性能研究中已显示出了希望。该IRES将每年提供为期10周的夏季课程，为期3年，每年使4名美国研究生和本科生获得在极端环境下表现出耐久性的先进材料系统的制造，测试和模拟方面的知识。通过该计划，学生将体验位于德国科隆的DLR Aerospace的大型设施，包括材料制造和测试系统，以设计和开发实验样品。这种经验提供了美国和德国的研究人员在同步加速器的研究在阿贡国家实验室的德国和美国的科学家的指导下共同参与。学生将获得对新兴材料研究的整个周期的罕见见解。研究成果在为下一代能源、推进和运输需求创造新材料方面具有长期的社会效益。国际合作研究的教育广泛影响是通过以下方式实现的：i）在处理中交流高分辨率技术的知识，实验和模拟（ii）为研究生和本科生提供机会，在高度先进的设施中体验合作研究，专注于每一项专业知识，由训练有素的科学家指导，以及研究生和高年级本科生之间的同行指导iii）与当地高中生（学习德语）进行德国工程交流（GEEx）活动，教授基础德语，以交换参与者组织的工程活动。通过此次活动，将在德国的研究机会分享给正在上升的新生。第二部分IRES项目通过德国航空航天中心（DLR）和中央佛罗里达大学（UCF）之间的合作研究，为学生提供国际经验，以支持寻找能够维持适用于高超音速和可重复使用航天器的极端物理和机械环境的材料。DLR在高温陶瓷和陶瓷基复合材料先进加工方面的专业知识将补充UCF在操作和真实的环境下直接捕获这些复杂分层材料系统力学的独特能力。该研究能够调查这些材料在热机械或热梯度机械循环中的应变演化，极端环境下的裂纹扩展以及几何形状对应变和损伤扩展的影响，这些研究是通过UCF和DLR研究人员与阿贡国家实验室合作进行的现场同步加速器测量进行的。这些结果将使人们能够了解这些材料的机械性能和行为，并有可能在高温下扩展其操作能力和耐久性。