A Brief Overview of In-Situ Mechanical Testing in the Environmental Scanning Electron Microscope

Environmental Scanning Electron Microscopy (ESEM) allows samples to be imaged at high resolutions in their natural hydrated state and when used in combination with appropriate apparatus to measure the mechanical properties of the system under investigation. The approach has been successfully utilised in the study of a number of exciting materials systems and has been able to address a variety of scientific questions in areas ranging from Physics through to Life Sciences. The principal aim of this brief overview is to highlight the latest and most recent developments in micromechanical characterisation by means of ESEM and to outline the advantages of this approach. The basic principles of ESEM operation and in-situ tensile testing have also been considered.