US-Germany Cooperative Research: Interaction Forces in Nanoindentation of Composite Materials

0233261贝尔布鲁诺该奖项支持PI和研究生从达特茅斯学院在与应用科学大学-维尔道，德国工程物理研究所的Asta里希特合作。 德国在实验技术方面的专业知识将与美国在计算建模方面的专业知识结合起来，联合收割机将加强对纳米压痕过程的理解。 拟议的研究重点是压头尖端晶体相互作用，特别强调原子层的变形和缺陷和裂纹在纳米级的创建。 计算工作，包括模拟，将探索纳米压痕在原子水平上的表面层的效果，在表面的实验参数和位移/弹性过程之间的相关性。 这些实验将测量非常薄的薄膜和复合材料的机械性能，这将产生机械性能的质量指标，如硬度和杨氏模量，以在微米和纳米尺度上对薄膜结构进行分类。 需要新的质量测量来表征非物质。该项目也有教育目标。 该项目将使参与的研究生能够从在另一个国家进行研究中受益。 他们将培养对周围世界的高度赞赏，同时也学习重要的新技术技能。

0233261BelBrunoThis award supports the PI and graduate students from Dartmouth College in a collaboration with Asta Richter of the Institute for Engineering Physics at the University of Applied Sciences-Wildau, Germany. The German expertise in experimental techniques will be combined with the US expertise in computational modeling will combine to enhance understanding of the nanoindentation process. The proposed research focuses on the indenter tip-crystal interaction, with particular emphasis on deformation of atomic layers and the creation of defects and cracks at the nanoscale level. The computational effort, including simulations, will explore the effect of nanoindentation on the surface layers at an atomistic level, looking at correlations between experimental parameters and displacement/elastic processes at the surface. The experiments will measure mechanical properties of very thin films and composite materials, which will yield quality measures for mechanical properties, like hardness and Young's modulus, to classify thin film structures on micro-and nanoscales. The new quality measures are needed to characterize nonomaterials.The project also has an educational objective. The project will allow the graduate students involved to benefit from performing research in another country. They will develop a heightened appreciation of the world around them while also learning important new technical skills.