Surface Morphology and Topology of TiO2 Nanocoating on Metal Substrates at Different Molar Concentrations and Speed

Mild steel is low carbon steel content of carbon less than 0.25 wt%. This type of steels is low cost to produce while has good toughness and outstanding ductility. Nanocoated mild steel surface is greatly many applications such as in automobile body component, pipelines, wall of operation's room and operation's theatre. Anatase TiO2 coating were successfully synthesized by optimize the sol-gel solution wherein glacial acetic acid and controlling of annealing temperature. In this paper initial study of TiO2 nanocoating on mild steel surface was presented. TiO2 nanocoating was prepared by spin coating technique. Spin coating technique is low processing temperature and ease of compositional modifications. The sol-gel concentration and speed (rpm) of spin coating were varied to produce different surface morphology and topology of samples. The surface phase, morphology and topology of coating were investigated by X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM) and Atomic Force Microscopy (AFM) while the roughness of coating was determined by Surface Profiler (SP).