U.S.-Mexico Cooperative Research on (1) Nanocrystalline Metals and (2) Particle Coarsening Kinetics

小行星9507577 这个美国-墨西哥奖将支持西北大学的Julia Weertman教授与墨西哥大学教授进行研究合作。墨西哥城国家理工学院（IPN）的Jorge Cabanas Moreno和Hector Calderon Benavides，研究纳米晶金属的机械行为和表征，以及镍和铁基合金中相干颗粒粗化的动力学。 在研究纳米金属的机械性能和内部结构时，将通过机械合金化/机械研磨和另外两种合成路线制备样品。 因此，制备方法对性能和晶界行为的影响将被检查。 在含有双峰颗粒分布的样品中，研究金属合金中共格颗粒的粗化行为作为晶格失配的函数。 拟议的研究合作将受益于西北大学在纳米晶材料的机械性能和内部结构方面的丰富经验以及墨西哥方面遵循的合成和加工路线。 该奖项还将为学生的旅行提供便利，从而为他们在职业生涯早期提供国际研究经验。 ***

9507577 Weertman This U.S.-Mexico award will support Prof. Julia Weertman of Lorthwestern University in a research collaboration with Profs. Jorge Cabanas Moreno and Hector Calderon Benavides of the Instituto Politecnico Nacional (IPN) in Mexico City, for research on the mechanical behavior and characterization of nanocrystalline metals, and the kinetics of coarsening of coherent particles in nickel and iron-based alloys. In studying the mechanical properties and internal structure of nanocrystalline metals, samples will be prepared by mechanical alloying/mechanical milling and two other synthesis routes. Thus the influence of preparation method on properties and grain boundary behavior will be examined. The coarsening behavior of coherent particles in metal alloys will be studied as a function of lattice mismatch in samples containing bimodal particle distributions. The proposed research collaboration will benefit from the extensive experience at Northwestern University on the mechanical properties and internal structure of nanocrystalline materials and the synthesis and processing routes followed by the Mexican side. This award will also facilitate the travel of students, thus providing them with an international research experience early in their careers. ***