Mahmoad Mahmoad

Institute of Laser for Postgraduate Studies, University of Baghdad, Baghdad, Iraq


  • Research Article   
    Influence of Fiber Laser 1064 Nm Processing parameters on surface Topography of Titanium discs
    Author(s): Ruba Husam Abdulrazzaq*, Basima Mohammed Ali Hussein and Mahmoad Mahmoad

    Objectives: This work was performed for enhancement of titanium abutment retention to crown by surface modification using fiber laser 1064 nm considering (hatch distance, scanning speed, frequency and average power). Materials and methods: Titanium specimens of 6 mm diameter and 3 mm thickness (disk form) were prepared. Q-switched nanosecond fiber laser of 1064 nm wavelength ,81 ns pulse duration, 6.6 mm beam diameter, 0.01 mm spot size was used for surface modification of titanium specimens. Titanium specimens were categorized into four groups according to the variation in laser parameters (1) hatch distance group, (2) scanning speed group, (3) frequency group and (4) average power group. Characterization of the specimens was performed by optical microscope, scanning electron microscope (SEM), and surface roughness tester. Phase analysis was performed by X-ray diffractometer (XRD). R.. Read More»

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