BRIGE: Engineering the Mechanisms Controlling Durability of High Temperature Ceramic Coatings for Energy Efficiency

BRIGE：设计控制高温陶瓷涂层耐久性的机制以提高能源效率

• 批准号: 1125696
• 负责人: Seetha Raghavan
• 金额: $ 17.49万
• 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: 2011
• 资助国家: 美国
• 起止时间: 2011-08-01 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1125696&HistoricalAwards=false
• 关键词: BRIGE; Engineering; Mechanisms; Controlling; Durability

This Broadening Participation Research Initiation Grants in Engineering (BRIGE) award provides support to meet goals to control and enhance the durability of high temperature ceramic coating systems or thermal barrier coatings for advanced turbine technology. Advances in high efficiency power generation systems that produce lower emissions must be accompanied by enhanced durability of these coatings to higher turbine temperatures and fuel impurities. This will be achieved through in-depth studies on degradation mechanisms from thermo-mechanical and contaminant environments, leading to the development of mitigation solutions. Recent advances integrating high-resolution synchrotron X-ray diffraction and piezospectroscopic techniques in situ with operational environments will be utilized to study the evolution of strain within the multilayered high temperature ceramic coatings. Selected mitigation solutions, with a focus on overlay coatings to prevent contaminant infiltration, will be explored to assess effects on the strain compliance of the multi-layer coating system. The outcome of the novel studies will unravel the immediate and long-term effects of thermo-mechanical environment and contaminants on the coating compliance and life. Results will enable mitigation through material and process modifications, to achieve durability and reliability of these coatings for energy applications.The significance of the proposed work is in the potential for enabling a new class of ceramic coatings applicable to the clean and efficient operation of turbines with alternative fuels. Through the advancement of high temperature coatings to meet these operating environments, the research has far reaching societal benefits in achieving reliability and energy efficiency goals for the next generation turbine technology. Research goals will be integrated with efforts aimed at broadening participation and encouraging early interest in engineering research through unique research experiences at a synchrotron facility as well as mentoring.

这项工程学研究启动赠款（BRIGE）奖旨在为实现控制和增强先进涡轮机技术的高温陶瓷涂层系统或热障涂层的耐久性的目标提供支持。产生较低排放的高效发电系统的进步必须伴随着这些涂层对较高涡轮机温度和燃料杂质的增强的耐久性。这将通过深入研究热机械和污染物环境的降解机制来实现，从而制定缓解解决方案。最新进展集成高分辨率同步辐射X射线衍射和压电光谱技术原位与操作环境将被用来研究多层高温陶瓷涂层内的应变演变。选定的缓解解决方案，重点是覆盖涂层，以防止污染物渗透，将探讨评估对多层涂层系统的应变顺应性的影响。新研究的结果将揭示热机械环境和污染物对涂层顺应性和寿命的直接和长期影响。结果将通过材料和工艺改进实现缓解，以实现这些涂层在能源应用中的耐用性和可靠性。拟议工作的意义在于可能实现一类新的陶瓷涂层，适用于使用替代燃料的涡轮机的清洁和高效运行。通过改进高温涂层以满足这些操作环境，该研究在实现下一代涡轮机技术的可靠性和能效目标方面具有深远的社会效益。研究目标将与旨在扩大参与的努力相结合，并通过在同步加速器设施以及指导独特的研究经验鼓励对工程研究的早期兴趣。