Scanning Electron Microscopy – SEM – is a powerful technique in the examination of materials. It is used widely in metallurgy, geology, biology and medicine, to name a few. The SEM uses a focused beam of high-energy electrons to generate a variety of signals at the surface of solid specimens. The signals that derive from electron-sample interactions reveal information about the sample including external morphology (texture), chemical composition, and crystalline structure and orientation of materials making up the sample.
