Uporedna karakterizacija dekoratvnih prevlaka zlata dobijenih iz kompleksa zlata na bazi merkapotriazola

Abstract

Cilj rada bio je komparativna karakterizacija elektrohemijskih prevlaka zlata dobijenih iz sveže sintetisovanog elektrolita, elektrolita nakon godinu dana od sinteze i elektrolita dobijenog rastvaranjem kristala komleksa zlata na bazi merkaptotriazola. Spoljni izgled, debljina, hrapavost, mikrotvrdoća po Knoopu i elektronska mikroskopija (SEM sa EDS-om) prevlaka pokazali su da su prevlake dobijene iz sva tri elektrolita svetle sa dobrim prianjanjem. Najmanja hrapavost je izmerena za prevlake dobijene iz svežeg elektrolita, a najveća za prevlake dobijene iz elektrolita dobijenog rastvaranjem kristala. U pogledu tvrdoće ne postoje značajne razlike.

The aim of this work was A comparative characterization of electrochemically deposited gold decorative coatings obtained from the fresh synthesized electrolyte, then the electrolyte aged for a year and coatings obtained from the electrolyte by dissolving crystals of gold-mercaptotriazole. The external appearance of coatings, thickness, surface roughness, the Knoop microhardness and electron micros- copy (SEM with EDS) have showed that the coatings obtained from all three electrolytes are bright and with a good adhesion. The smallest roughness was measured for the coating obtained from fresh electrolyte and the greatest for the coating obtained from electrolyte obtained by dissolving crystals. In terms of hardness, there are no significant differences.