Contrast Enhancement of Polycrystalline Metals – Sample Preparation for SEM

Full credit to the source of this post http://www.leica-microsystems.com/science-lab/contrast-enhancement-of-polycrystalline-metals-sample-preparation-for-sem/

Application Note – Ion milling is a perfect alternative for chemical etching, especially for polycrystalline metals, such as copper. Ion milling can be used to increase the contrast of the grain structure and their interfaces. In contrast to chemical etching the milling process is clean, safe and easy to operate. Ion energy and milling time depend on the milling rate of the metal.