报告题目:In Situ Nanomechanics
报 告 人:Ting Zhu ,Woodruff School ofMechanical Engineering
Georgia Institute of Technology,Atlanta, GA 30332, USA
时 间:2017年6月27日(星期二)上午10:00
地 点:材料馆A323
Abstract:In situ nanomechanicsis anemerging field that investigates the mechanical properties and deformationmechanisms of nanostructured materials. The in situ nanomechanics researchistypicallyconductedby integrating thereal-time mechanical testing inside an electron microscope and the mechanicsmodeling with atomic resolution. It provides a powerful approach to visualizethe intrinsic nanomechanical behavior of materials - seeing is believing. Inthis talk, I will present the recentin situ nanomechanics studies in my group, including the electrodedegradationin nanoscale lithium-ion batteries (NatureNanotechnology, 7, 749, 2012);fracture toughness of graphene (NatureCommunications, 5, 3782, 2014);twinning-dominateddeformation in BCC nanowires (NatureMaterials, 14, 594, 2015); andstress-induced solid state amorphization in silicon nanocrystals (Nature Nanotechnology, 11, 866, 2016). I will also present ourongoing work on the nanomechanics of heterogeneous nanostructured high-entropyalloys and 3D-printed steel. The in situ nanomechanicsstudies provide new insights thatcannot be offered by traditional mechanics approaches.Ultimately, the in situ nanomechanics research aims to enable the design ofnanostructured materials to realize their latent mechanical strength to thefull. Our research involves collaborations with Drs.Scott Mao, Jianyu Huang, JunLou, Qian Yu and Morris Wang.
Biography: Ting Zhu is a professor and a Woodruff FacultyFellow in the George W. Woodruff School of Mechanical Engineering at GeorgiaInstitute of Technology. He also holds a joint appointment in the School ofMaterials Science and Engineering at Georgia Tech. He received his B.S. inEngineering Mechanics in 1995 and Ph.D. in Solid Mechanics in 1999 fromTsinghai University. Then he received his Ph.D. in Mechanical Engineering fromMassachusetts Institute of Technology in 2004.He worked as a postdoctoralassociate at Harvard University, before joining Georgia Tech in 2005. Hisresearch is focused on the mechanics and materials modeling. He receives theSiaNemat-Nasser Early Career Award from the American Society of MechanicalEngineers (ASME) in 2013 and the Young Investigator Medal from the Society ofEngineering Science in 2014. Zhu is an ASME Fellow.
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