Dynamic high-resolution transmission electron microscopy of sub-nanometer scale mechanical tests in gold

摘要

Sub-nanometer scale mechanical testssuch as bonding and surface friction tests betweenthe two gold nanocrystallites were performed bydynamic high-resolution transmission electronmicroscopy using a piezo-driving specimen holder,Removal type mechanical processing at atomic scalewas also carried out using the same method. Thestuctural variation during the mechanical testsand processing was obwerved in real space on anatomic scale and dynamically at time resolution of1/60s. It was found that only few atomic layers atsurfaces and grain boundaries were responsible forthe mechanical tests and processing.