Observation Of Plastic Deformation In Freestanding Single Crystal Au Nanowires
APPLIED PHYSICS LETTERS(2006)
摘要
Freestanding single crystal nanowires of gold were fabricated from a single grain of pure gold leaf by standard lithographic techniques, with center section of 7 mu m in length, 250 nm in width, and 100 nm in thickness. The ends remained anchored to a silicon substrate. The specimens were deflected via nanoindenter until plastic deformation was achieved. Nonlocalized and localized plastic deformations were observed. The resulting force-displacement curves were simulated using continuum single crystal plasticity. A set of material parameters which closely reproduce the experimental results suggests that the initial critical resolved shear stress was as high as 135 MPa. (c) 2006 American Institute of Physics.
更多查看译文
关键词
nanowires,single crystal,gold,silicon,plastic deformation,nanocrystalline material,critical resolved shear stress,materials science,plasticity
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络