Synergistic Toughening of Nickel Aluminides

9634870 Soboyejo拟议的研究将整合微观力学和材料 科学发展观 协同增韧的NiAl复合材料由涂覆的氧化铝桥接纤维和部分稳定的氧化锆颗粒组成。 NiAl的协同增韧是一种新的增韧方法 的 利用马氏体相变和纤维增强复合材料的知识，设计具有最佳韧性的新型先进材料。 拟议的工作是多学科的，与NASA刘易斯的合作加强了该提案，并促进了拟议的协同增韧NiAl材料的生产。 拟议的工作是高风险的，但如果成功的话，它将产生对转型之间协同作用的基本理解。 和 桥接作为 执行部分 复合材料的增韧机理 ***

9634870 Soboyejo The proposed research will integrate micromechanics and materials science concepts to develop synergistically toughened NiAl composites that consist of coated alumina bridging fibers and partially stabilized zirconia particles. The concept of synergistic toughening of NiAl is a novel method of utilizing what is known about martensitic transformation and fiber reinforced composites to design new advanced material with optimal toughness. The proposed work is multidisciplinary and collaboration with NASA Lewis strengthens the proposal and facilitates the production of the proposed synergistically toughened NiAl materials. The proposed work is high risk but if successful it will generate fundamental understanding of the synergy between transformation and bridging as operative toughening mechanisms in composites. ***