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

美国-德国合作研究：通过新型热梯度机械疲劳研究在高温陶瓷涂层力学方面取得突破

• 批准号: 1157619
• 负责人: Seetha Raghavan
• 金额: $ 5.24万
• 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: 2012
• 资助国家: 美国
• 起止时间: 2012-05-01 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1157619&HistoricalAwards=false
• 关键词: Collaborative; Research; US; Germany; Achieving

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.

该奖项促进了一项协同的国际合作，其长期目标是在操作环境下，在高温陶瓷涂料中理解降解和失败机制方面的突破。来自佛罗里达州中部大学，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，使用新颖的几何形状和高分辨率技术进行基本的实验和模拟，以量化这些在热力学机电疲劳（TGMF）条件下涂层中应变的现场演变。催化活动将由团队共同开展，并得到同步研究的支持，为研究生和本科生提供机会，以通过国际协作活动来丰富他们的研究和教育。研究的智力优点和唯一性在于i）原位捕获在操作和真实环境下陶瓷涂层中的降解机制； ii）强大的和互补的实验和仿真技术的组合，用于高分辨率结果。这项研究将受益于美国和德国合作者在仪器方面的进步，以将高分辨率测量值（UCF）和仿真（UD）与TGMF测试能力（DLR，德国）整合在一起。通过这项工作，将建立复杂的热机械环境，通常在高温涂层研究中被避免，从而实现了这些材料实现现实的力学模型的突破。这项研究在创造新的高温陶瓷涂层方面具有针对下一代能量和推进需求的新型高温陶瓷涂料具有很大的收益。通过i）实验和模拟中高分辨率技术知识的交流来实现国际合作研究的更广泛影响ii）毕业生和本科级别的学生的机会，以在高级设施中体验高级设施的合作研究，专注于每个专业知识，iii）III），一项全球工程和研究的活动，与计划的学生为未来的Internaltion International International International International International International International International Suckess提供了研究角度。国际经验将通过参与者领导的演讲扩展到各个机构的学生。