• Table of contents (7)
• Introduction (14)
  • Zinc Coatings (14)
  • Electrophoretic Deposition (E.P.D.) (14)
  • Electrophoretic Deposition(E.P.D.) Mechanism (16)
  • Traditional approaches for EPD (17)
  • Flocculation by particle accumulation (17)
  • Particle charge neutralization mechanism (18)
  • Electrochemical particle coagulation mechanism (18)
  • Electrical double layer (EDL) distortion and thinning mechanism (19)
• Literature review (21)
• The characterization of electrodeposited Zn/SiO2 composites before and after corrosion test (21)
  • Anticorrosive behavior of Zn-SiO2 composite coatings (21)
  • Effect of the microstructure on corrosion behavior of the Zn-SiO2 coatings (22)
• High corrosion resistance for Zn, Co, Cr with Al2O3 and SiO2 (26)
• Zinc release from bioactive sol–gel derived SiO2-CaO-ZnO glasses and ceramics (26)
• Lubrication behavior of Zn-SiO2 nano-spheres (27)
• Antibacterial properties of nano-SiO2 supported silver/zinc–silver materials (30)
• Adsorption of Ca2+ and Zn2+ ions at monodispersed SiO2 (30)
• Experimental method (32)
  • Rinsing of plate (32)
  • Surface activation of substrate (32)
• Electrolyte preparation (32)
• Electroplating process (34)
  • Electrodeposition potential (35)
  • Electrodeposition time (35)
• Effect of bath agitation (36)
• Surface characterization of coatings (36)
  • Surface morphology by Scanning Electron Microscopy (SEM) (36)
  • Surface roughness by Atomic Force Microscopy (AFM) (36)
  • X-ray fluorescence (XRF) analysis (37)
• Electrolyte stability (37)
  • Zeta potential measurements (37)
• Coating adhesion to substrate (38)
• Coating thickness determination (39)
• Micro hardness of the coatings (39)
• Electrochemical experiments (39)
  • Polarization behavior of deposition (40)
  • Electrochemical Impedance Spectroscopy (EIS) (40)
  • Cyclic Voltammetry (CV) (41)
• Environmental corrosion tests (41)
  • Study of corrosion by salt spray (41)
• Results and Discussion (43)
• Steel substrate composition (43)
• Solubility in electrolytes: (44)
• Stability of electrolyte (46)
• Thickness of the Zn-SiO2 coatings (48)
  • Effect of potential (49)
  • The effect of time on the thickness of the coating (50)
• Effect of agitation on the Zn/SiO2 coating uniformity (51)
• Morphology of the Zn-SiO2 coatings (52)
  • The surface morphology by Scanning Electron Microscopy (SEM) (52)
  • Characterization of the Zn-SiO2 coatings topography by Atomic Force Microscopy (AFM) (63)
  • Analysis of the coating by X-ray fluorescence (XRF) (70)
• Electrochemical study of the Zn-SiO2 coatings (72)
  • Linear Polarization study of the Zn-SiO2 coatings (72)
  • Study the corrosion by electrochemical impedance spectroscopy (EIS) for the Zn-SiO2 coatings (74)
  • Cyclic voltammetry (CV) (80)
    • Coating adhesion to substrate by pull off test (83)
    • Hardness of the coating (84)
    • Study the environment corrosion of the coatings by salt spray test (86)
    • Conclusion (87)
    • Recommendation for further study (89)
• Persian abstract.pdf
  • چکیده (90)