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With good combination of hardness, ductility, and wear resistance, TiO₂ coatings are one of the most potential hard ceramic coatings. TiO₂ in an Al₂O₃ coating had increases the wear resistance which has contributed to an increase in the fracture toughness and decrease in the coefficient of friction. The specific wear rates of pure TiO₂ coatings are found to be ranging from 1.62×10⁻⁵–4.19×10⁻⁵ cm³/N m whereas the Al₂O₃/TiO₂ coatings are in the range of 2.0×10⁻³ cm³/N m to 28.0×10⁻³ cm³/N m. This concludes that the TiO₂ coatings are most preferable in improving wear resistance.