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| This image, created by AtomEye software, simulates the result of a nanoindentation experiment on a thin slice of copper. Ju Li, assistant professor of materials science and engineering at Ohio State University, wrote AtomEye to model the formation of defects in materials under stress. During nanoindentation, a diamond shard presses into a material. Here, the crater in the top center portion of the material represents the indentation formed by the diamond. To simplify the view, Li only made visible atoms of copper which were dislocated during the experiment; atoms largely unaffected by the indentation remain transparent. Li’s study of such defects with his colleagues at the Massachusetts Institute of Technology led to the discovery that aluminum and copper react differently to certain conditions of stress. Image courtesy of Ju Li, Ohio State University. |
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