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

陶瓷和陶瓷基复合材料在追求与亚轨道和可重复使用空间飞行器相关的高超声速条件下的性能方面表现出了希望。该IRES将提供为期10周的夏季课程，为期3年，每年为4名美国研究生和本科生提供在极端环境下展示耐用性的先进材料系统的制造，测试和模拟方面的知识。通过该项目，学生们将体验德国科隆DLR航空航天公司的大型设施，包括材料制造和测试系统，以设计和开发实验样品。这一经验提供了美国和德国研究人员在德国和美国科学家的指导下共同参与阿贡国家实验室的同步加速器研究。学生将获得对新兴材料研究的完整周期的罕见见解。研究成果在为下一代能源、推进和运输需求创造新型材料方面具有长期的社会效益。国际合作研究的更广泛的教育影响是通过以下方式实现的：(1)在处理、实验和模拟方面的高分辨率技术知识交流；(2)研究生和本科生有机会在训练有素的科学家的指导下，在研究生和大四本科生之间的同伴指导下，在高度先进的设施中体验专注于每种专业的合作研究。iii)旅行前与当地高中生（德语授课）进行德国工程交流（GEEx）活动，以交换参与者组织的工程活动。在德国的研究机会将通过这个活动分享给新生。通过德国航空航天中心（DLR）和中佛罗里达大学（UCF）之间的合作研究，该IRES项目促进了学生的国际经验，以支持寻找能够维持适用于高超音速和可重复使用空间飞行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的先进加工方面的专业知识将补充UCF在操作和真实环境下直接捕获这些复杂分层材料系统机制的独特能力。该研究通过UCF和DLR研究人员与Argonne国家实验室合作进行的原位同步加速器测量，可以调查这些材料在热-机械或热梯度-机械循环中的应变演变，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。研究结果将使人们对这些材料的机械性能和行为有基本的了解，并有可能扩大高温下的操作能力和耐久性。

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.