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.

这项扩大的参与研究启动工程奖（BRIGE）奖提供了支持，以实现目标，以控制和增强高温陶瓷涂料系统或高级涡轮机技术的热屏障涂料的耐用性。产生较低排放的高效发电系统的进步必须伴随着这些涂料的耐用性提高到涡轮机温度和燃料杂质。这将通过对热机械和污染物环境的降解机制的深入研究来实现，从而导致缓解溶液的发展。将高分辨率同步加速器X射线衍射和在原位工作环境与操作环境进行整合的最新进展将用于研究多层高温陶瓷涂层中应变的演变。将探索选定的缓解溶液，重点关注覆盖涂层以防止污染物浸润，以评估对多层涂料系统应变合规性的影响。新型研究的结果将揭示热机械环境和污染物对涂料依从性和生命的直接和长期影响。结果将通过材料和过程修改来缓解，以实现这些涂层用于能源应用的耐用性和可靠性。拟议的工作的重要性在于有可能使新的陶瓷涂料适用于适用于涡轮机和替代燃料的涡轮机的清洁和有效操作。通过高温涂料的发展以满足这些操作环境，该研究在实现下一代涡轮技术的可靠性和能源效率目标方面具有很大的社会利益。研究目标将与旨在扩大参与的努力结合在一起，并通过同步基金设施的独特研究经验以及指导来拓宽参与并鼓励对工程研究的早期兴趣。