GOALI: Novel Interface Driven Phenomena in Thermal Sprayed Systems: Mechanics, Materials Processing and Industrial Linkages

这个赠款机会学术联络与工业（GOALI）赠款提供资金的发展的机械，热机械和机电性能的热喷涂制造结构合理化，通过分析自然同行的基本理解。热喷涂材料是由微米厚的“砖”和纳米级界面组成的层状结构，已显示出与珍珠层（珍珠母）类似的机械性能，包括非线性弹性、滞弹性和增强的韧性。值得注意的是，这些仿生特性是可通过工艺和材料操作来调节的，这为工业相关涂层系统的微观结构设计提供了机会。通过界面结构的工艺工程，将确定微观结构和弹性性能之间的关系。通过将热力学和力学测试与建模、微观结构分析和工艺科学相结合，同时考虑自然结构原理，将从根本上理解独特的热喷涂材料结构如何影响弹性性能和韧性。热喷涂在材料和可扩展性方面的非凡灵活性使其成为大规模仿生结构合成的工具。因此，这项研究将使自然系统的显着属性和优化工业重要材料和涂层的功能和损伤容限的愿望之间的共生。该研究将确定对工程材料基本类别的性能和设计产生影响的现象。对基本面的理解将增强信心，提高适用性并加速热喷涂行业新概念的插入。我们的创新，工业关联的高等教育和K-12外展工作将提供：（a）学生和他们的工业合作者之间的互动，（B）沟通结果和从行业获得反馈的机会，（c）工业实习引导学生长期致力于材料科学和热喷涂技术，以及（d）通过暑期课程为K-12学生和教师的灵感。

This Grant Opportunity for Academic Liaison with Industry (GOALI) grant provides funding for the development of a fundamental understanding of the mechanical, thermo-mechanical and electro-mechanical behavior of thermal spray fabricated structures rationalized through analysis of natural counterparts. Thermal spray materials, which are layered structures comprised of micron-thick 'bricks' and nanoscale interfaces, have been shown to display similar mechanical properties as nacre (mother of pearl), including non‐linear elasticity, anelasticity and enhanced toughening. Noteworthy is the discovery that these biomimetic properties are tunable via process and material manipulation, opening up opportunities for microstructural design of industrially relevant coating systems. Through process engineering of interfacial structures, relationships between microstructure and elastic properties will be determined. By coupling thermal and mechanical testing with modeling, microstructural analysis and process science, while considering natural structural principles, a fundamental understanding of how the unique thermal spray material structure influences elastic properties and toughness will be developed.The extraordinary flexibility of thermal spray with respect to materials and scalability enables its consideration as a tool for large scale synthesis of biomimetic structures. Thus, this research will enable a symbiosis between the remarkable attributes of natural systems and the desire to optimize functionality and damage tolerance of industrially important materials and coatings. The research will identify phenomena having an impact on the performance and design of essential classes of engineered materials. Appreciation of the fundamentals will provide enhanced confidence, increased applicability and accelerated insertion of new concepts in the thermal spray industry. Our innovative, industrially linked higher education and K-12 outreach efforts will provide: (a) Interactions between students and their industrial collaborators, (b) Opportunities to communicate results and receive feedback from industry, (c) Industrial internships priming students for a long-term commitment to materials science and thermal spray technologies, and (d) Inspiration for K-12 students and teachers through summer programs.