Institution: | Ju Li Kai Chen Zhiwei Shan Guanjun Qiao Jun Sun Evan Ma1 Department of Nuclear Science and Engineering and Department of Materials Science and Engineering, MIT,USA.2 Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano) & Hysitron Applied Research Center in China (HARCC), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China. 3 Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland, USA. |