抄録
The crystallographic morphology of the gold film electrodeposited for less than 40min. on iron was examined by scanning and transmission electron microscopes and electron diffraction.
The results obtained were as follows:
(1) The morphology of the gold film electrodeposited for a long period much varied according to the effects of iron substrate orientation, but it usually formed step structures widely exposing {111} planes.
(2) Needle and dendritic crystals and other crystals of complicated shape grew on the step structure. The growth directions of the needle and dendritic crystals seemed to be ‹110› directions.
(3) Pyramidal and roof-like crystals grew on (001) orientated gold plate crystals formed on (001) iron substrate. These crystals grew in ‹001› direction and thier slant faces consisted of {111} planes.
(4) Two types of roof-like crystals were observed and each of them developed in ‹110› direction.
