The structure of bright zinc coatings

Abstract

The structures of bright zinc coatings obtained from acid sulfate solutions in the presenceof dextrin/salicylaldehyde mixture were examined. It was shown by the STM technique that the surfaces of bright zinc coatings are covered by hexagonal zinc crys­tals, the tops of planes of which are flat and mutually parallel and which exhibit smooth­ness on the atomic level. X-Ray diffraction (XRD) analysis of the bright zinc coatings showed that the zinc crystallites are oriented in the (110) plane only.

Ispitana je struktura sjajnih prevlaka cinka istaloženih iz kiselog sulfatnog elektrolita sa dodatkom dekstrina i salicil aldehida. Pokazano je da je površina sjajnih prevlaka pokrivena heksagonalnim kristalima cinka, čiji vrhovi su ravni i međusobno paralelni, i koji su glatki na atomskom nivou. Rendgensko-difrakciona analiza sjajnih prevlaka cinka je pokazala da su kristaliti cinka orijentisani samo u (110) ravni.