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Study Of Coloration On Excimer Laser Treated Titanium Surfaces

Author

Listed:
  • H. X. QIAN

    (Shenzhen Key Laboratory of Special Functional Materials, Shenzhen University, Shenzhen 518060, P. R. China)

  • WEI ZHOU

    (Precision Engineering and Nanotechnology Centre, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore)

  • H. Y. ZHENG

    (Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, Singapore 638075, Singapore)

Abstract

Surface oxidation ofTiwas carried out using KrF excimer laser in the presence ofO2. Different colors were obtained by varying the number of laser pulses at the fixed laser fluence. X-ray photoelectron spectroscopy shows that the outmost surface is composed ofTiO2and the inner layer consists ofTiOandTi2O3as well asTiO2. Fractions of titanium chemical states stabilized at 33%TiO, 63%TiO2, and 2%Ti2O3with increasing number of laser pulses. The surface roughness tends to increase with number of laser pulses. It is suggested that compositional variation and morphological difference contribute to the laser-induced surface coloration.

Suggested Citation

  • H. X. Qian & Wei Zhou & H. Y. Zheng, 2008. "Study Of Coloration On Excimer Laser Treated Titanium Surfaces," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 15(05), pages 675-679.
    • Handle: RePEc:wsi:srlxxx:v:15:y:2008:i:05:n:s0218625x08011846
    DOI: 10.1142/S0218625X08011846
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