Collaborative Research: US-Germany: Achieving breakthroughs in the mechanics of high temperature ceramic coatings with novel thermal-gradient mechanical fatigue studies

该奖项催化了具有长期目标的协同国际合作，以便在操作环境下对高温陶瓷涂层的降解和失效机制的理解方面取得突破。来自中佛罗里达大学、美国特拉华大学和德国DLR航空航天中心的研究人员将合作进行基础实验和模拟，采用新颖的几何形状和高分辨率技术，量化这些涂层在热梯度机械疲劳（TGMF）条件下的应变原位演变。催化活动将由团队共同进行，并辅以同步加速器研究，为研究生和本科生提供机会，通过国际合作活动丰富他们的研究和教育。该研究的智力价值和独特性在于i)在操作和真实环境下陶瓷涂层内的降解机制的原位捕获；ii)结合强大和互补的实验和模拟技术，以获得高分辨率的结果。该研究将受益于美国和德国合作者在仪器仪表方面取得的个人专业知识和进步，将高分辨率测量（UCF）和模拟（UD）与TGMF测试能力（德国DLR）相结合。复杂的热-机械环境，经常在高温涂层的研究中被回避，将通过这项工作建立导致突破，实现这些材料的真实力学模型。该研究在为下一代能源和推进需求创造新型高温陶瓷涂层方面具有深远的社会效益。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)在实验和模拟中交流高分辨率技术的知识；(2)为研究生和本科生提供机会，体验在高度先进的设施中专注于每个专业的合作研究；(3)具有计划活动的全球工程和研究视角；为学生提供未来国际合作成功的能力。国际经验将通过参与者领导的演讲扩展到个别机构的学生。

This award catalyzes a synergistic international collaboration with long-term goals to enable breakthroughs in the understanding of degradation and failure mechanisms in high temperature ceramic coatings, under operational environments. Researchers from the University of Central Florida, University of Delaware in the US and DLR Aerospace Center in Germany will collaborate to perform fundamental experiments and simulations with novel geometries and high resolution techniques to quantify the in situ evolution of strain in these coatings under thermal gradient-mechanical fatigue (TGMF) conditions. The catalyzing activities will be jointly conducted by the team, supported with synchrotron studies providing opportunities for graduate and undergraduate students to enrich their research and education with international collaborative activities. The intellectual merit and uniqueness of the research lies in i) the in situ capture of degradation mechanisms within ceramic coatings under operational and real environments; and ii) the combination of powerful and complementary experimental and simulation techniques for high resolution results. The research will benefit from the individual expertise and advances in instrumentation achieved by the US and German collaborators, to integrate high-resolution measurements (UCF) and simulation (UD) with TGMF test capabilities (DLR, Germany). The complex thermo-mechanical environment, often eluded in studies of high temperature coatings, will be established through this work leading to breakthroughs in achieving realistic mechanics models for these materials.The research has far reaching societal benefits in creating a new class of high temperature ceramic coatings for next generation energy and propulsion needs. The educational broader impact of the international collaborative research is achieved through i) an exchange of knowledge of high resolution techniques in 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, iii) a global engineering and research perspective with planned activities, providing students with the capabilities for future international collaborative success. The international experience will be extended to students at individual institutions through presentations led by the participants.