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This study was aimed at investigating the effects of micro-grooves on the tribological behaviour of a plasma-sprayed Al2O3 – 13%TiO2 coating. A combined surface profile with non-regular depths and micro-groove texture was successfully developed by using a Nd:YVO4 laser system. The surface condition and characterisation of the Al2O3 – 13%TiO2 coating was conducted using a VPSEM and a 3D microscope...