Abstract
This paper addresses chemical alteration of titanium using pulsed Ytterbium fiber laser irradiation. For this study, Hydrogen Peroxide (HP) is used as the medium to study its effect on increasing anatase-titania composition in titanium substrates for samples irradiated by the laser. The variation of anatasei-rutile transformation generated in HP is compared with those generated in air. X-Ray diffraction (XRD) analysis suggests that three titanium dioxide structures – brookite, anatiase, and rutile – are present in the substrates irradiated by the laser beam. Additional peaks appeared in XRD results of HP immersed samples indicating that anatase and a rare titanium oxide structure, Hongquiite, are also produced, whereas these oxides are not detected in the samples generated in air. Energy-dispersive X-ray spectroscopy (EDAX) analysis reveals an increase of the oxide layer on the surface of HP-treated samples.
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