New dislocation etchant for silver

Abstract

A new dislocation etchant for silver reliably reveals etch pits at both grown-in and fresh dislocations without decoration treatments. This etchant and the modified Levinstein-Robinson etchant are compared by detailed examination of the etch-pit morphology and the dislocation distribution patterns around microindentations. This etchant produces conical-shape etch pits and selectively etches only edge dislocations of one sign.