Research progress on mechanical behavior of small-sized metallic nanowires studied by in-situ TEM
Metallic nanowires are widely used in information collection,storage and ultra-sensitive sensors.In practical applications,metallic nanowires are often in a stress state,directly affecting the performance and stability of key devices.The in-situ study of the atomic mechanism of the plastic deformation of metallic nanowires under stress is the experimental basis to ensure the stable physical performance output of important components in complex environments.In this review,we introduced the research progress of in-situ experimental technology of nanomechanics and the measurement strategy of mechanical property curves of nanomaterials.On the basis of the size effect of materials,the correlation between deformation mechanisms such as dislocations,twins,surface atomic diffusion and mechanical properties of metallic nanowires with different diameter sizes was summarized.The development direction of in-situ nanomechanical technology and the prospect of in-situ experimental research on small metal nanowires were discussed.
in-situtransmission electron microscopyatomic-scalemetallic nanowiredeformation mechanism
万方数据
维普
