Decorative Coatings of Crystallite Type on Metallic and Non-metallic Surfaces

Abstract

The results of decorative coatings of 'crystallite' type on metallic and non-metallic surfaces are presented in this work. We propose the low-temperature chemical method that allows receiving the "crystallite" pattern with a preliminary assessment of decorative coating quality on all, including non-metallic materials. For this, at first a product is dipped for a few seconds into the saturated solution of copper salt at the temperature of 80-90 ºC for metals and 60 ºC for polymeric materials. At drying the product on air "crystallite" type patterns are formed onto its surface. If poor quality pattern is received, then it is easily washed off with water, thereupon repeating previous operations the qualitative patterns can be obtained. To fix the received in such way patterns of the product they are treated by gas, containing phosphine.

A galvanic-chemical method for preparing diamond containing coatings

“…The concentration of CuSO 4 g/l is optimal since it allows the introduction on the surface of the product of a sufficient amount of copper phosphide, moreover, it does not result in the formation of crystals of copper sulphate leading to inhomogeneity of the coating [20][21][22]. Calculations showed that the film thickness of the solution remaining on the surface of the sample was 50-70 m. The kinetic of the conversion process, measured through the volume of adsorbed phosphine, is presented in Fig.…”

Preparation and characterization of copper/zinc nanoparticles-loaded bacterial cellulose for electromagnetic interference shielding

“…Several coating techniques were investigated for the accumulation of metallic particles of the Cu alloys on insulating substances, for example, vacuum metallization [5], laser sputter coating or vapor deposition, and chemical coatings [6]. Every method has several advantages and disadvantages, for example, toxic reducing agents are known to be employed during chemical coatings [7].…”

Preparation of photochemical coatings of metal films (copper, silver and gold) on dielectric surfaces and studying their antimicrobial properties

“…Various coating methods were developed for deposition of antimicrobial metals of copper subgroup on dielectric materials such as vacuum metallization [16][17][18][19], vapor deposition or laser sputtering [20][21][22][23], chemical deposition [23][24][25][26][27][28]. There are advantages and disadvantages for each method, for example, for chemical deposition sometimes toxic reducing agents are employed [29][30][31][32][33][34][35].…”