Surface quality of the Ni-TiO2 composite coatings produced by electroplating

Abstract

Composite nickel coatings on a brass substrate were produced from suspensions consisted of a conventional nickel sulphate bath and fine TiO2 particles (dp 40 gdm-3. SEM micrographs showed irregularities like single-nodule, or beads of nodules on the surface. Relationship between surface roughness and current density has not been noted. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. OI 172060]

Keywords

• Nickel electroplating
• TiO2 particles
• Composite coatings
• Surface roughness
• Surface profilograms