Obtaining of patinas on the surface of brass with using of gel electrolyte with adding gold nanoparticles

In work results of influence of concentration methacrylic copolymer in solution with gold nanoparticles on the morphology and phase composition of the brass surface are presented. It was found that increasing concentration of polymer from 10 to 20% by weight. leads to an decrease in the thickness of the coating formed on the brass and to an decrease in the corrosion resistance of the coating. It is shown that surface of brass in contact with the gel is enriched copper atoms. The resulting coatings are predominantly amorphous structure