An electron-diffraction study of the effect of codeposition of foreign material on the structure of iron electrodeposits

Abstract

An electron-diffraction study has been made of iron electrodeposits on copper (110) and (111) single-crystal faces. A comparison has been made of the orientation of these deposits under two sets of conditions: (a) when they reveal the incorporation of crystalline codeposits, and (b) when inclusions of foreign matter are absent. Ring radii measurements strongly suggest that the codeposit is hexagonal ferrous hydroxide. Further, it has been shown that, in the presence of codeposit, the iron electrodeposits (obtained at a particular current density) have crystal orientations which were normally obtained at higher current densities.