Katkılı nanopartikül içeren kaplamaların yapısal özelliklerinin incelenmesi

Main purpose of this thesis is to synthesize doped nanoparticles with sol-gel method in order to use them for deposition of Ni based nanocomposite coatings by electrodeposition technique and to investigate its effect on structural properties of the nanocomposite coatings. At first, undoped, Mn doped and Mn-N codoped titanium dioxide nanoparticles were synthesized by sol-gel method. Titanium tetraisopropoxide were used as the precursor. Structural analysis and particle size measurements of the nanoparticles were conducted by using X-Ray Diffraction (XRD) and particle size analyzer, respectively. Subsequently, Ni and Ni based nanocomposite coatings were fabricated on steel substrate by electrodeposition method. XRD and Scanning Electron Microscope (SEM) analysis were done to investigate crystalline structure and surface morphology, respectively. Electrochemical measurements of Ni and Ni based nanocomposite coatings were performed using a Gamry potentiostat/galvanostat system controlled by Gamry Framework Software. It was observed that nanocomposite coatings with doped nanoparticles has shown enhanced surface properties, compared to the undoped nanoparticle coatings.