In situ transmission electron microscopy mechanical deformation and fracture of a silver nanowire

• DOI: 10.1016/j.scriptamat.2015.10.011
• Publication Date: 2015-10-25T05:51:01Z
• Authors: Diego Alducin; Raul Borja; Eduardo Ortega; J. Jesus Velazque...; Mario Covarrubias; Fernando Mendoza ...; Lourdes Bazán-Díaz; John Eder Sanchez; Nayely Torres; Arturo Ponce; Miguel José-Yacamán
• Keywords: In situ TEM measurements; Mechanical deformation; Silver nanowires; Transmission electron microscopy; Materials Science (all); Condensed Matter Physics; 01 natural sciences; 0104 chemical sciences

Abstract In this paper a fivefold twinning silver nanowire is mechanically tested in real time within a transmission electron microscope using an atomic force microscopy sensor. Our experimental setup allows us to measure, by bending the silver nanowire, the elastic modulus (E), the fracture toughness (K IC ) and the stress intensity factor (σ I ) for elastic and plastic deformation regions and finally the fracture of the nanowire. Data of the force applied and the bending of the nanowire was recorded during the deformation and after the point of fracture. The mechanical properties of the nanowire were extracted and compared with nanoindentation using atomic force microscopy.