Electrochemical and chemical treatments

Contact:
Professor Jerzy Robert Sobiecki
robert.sobiecki@pw.edu.pl
+48 22 234 83 99

The coatings can be divided in terms of the way they are produced into electrolytic coatings - galvanic (nickel, copper), coatings deposited by chemical reduction (nickel, phosphorus and zinc), chemical conversion coatings (phosphate) and coatings produced by electrochemical anodic  oxidation and plasma electrolytic oxidation.

The laboratory specializes in the production of nickel, nickel-phosphorus and composite coatings with nickel matrix (Ni / Al2O3, Ni / CNTs, Ni / Si3N4, Ni / PTFE, Ni / MoS2, Ni / WS2 and nickel-phosphorus (Ni-P / Al2O3) , Ni-P / Si3N4, Ni-P / MoS2) and TiO2 coatings.

The main purpose of research on galvanic and chemical coatings is to ensure the increase of strength parameters as well as resistance to corrosion and to wear. In turn, the advantage of electrochemical oxidation of anodic and plasma electrolytic oxidation is the possibility of their combination with the plasma nitriding process of titanium and its alloys with the aim of producing hybrid layers for biomedical applications.

In addition to producing coating, we do research on microstructure, surface morphology and topography, the amount of dispersal phase in the coating (for composite layers).  Adhesion of coatings to the substrate and measurements of microhardness, friction coefficient and wear resistance are done. Corrosion resistance with different methods in different corrosive environments is also studied.
 

Research activities

  • Galvanic and chemical coatings
  • Anodic and plasma electrolytic oxidation
     

Research offer

  • Production of coatings
  • Microstructure research
  • Corrosion resistance tests
  • Wear resistance tests
  • Tests of adhesion to the substrate
     

Research collaboration

  • Faculty of Wood Technology, Warsaw University of Life Sciences, Warsaw | dr inż. Piotr Czarniak
  • Institute of Physics August Chełkowski, University of Silesia, Katowice | dr inż. Jerzy Kubacki
     

Contact

Professor Jerzy Robert Sobiecki
robert.sobiecki@pw.edu.pl
+48 22 234 83 99
Division of Surface Engineering