Abstract
In this paper, we report the structural and electronic properties of TiC x N y films prepared by laser treatment under controlled gas atmosphere. X-ray diffraction shows the formation of TiC x N y along with the solid solutions of Ti(CN). The TiC x N y phases have been formed and are stable up to 650 °C. Subsequent laser irradiation at different laser energy densities in Ar-atmosphere modifies the microstructure and becomes oxidation resistant. Due to the formation of nano-crystalline TiC x N y , the affinity of Ti toward oxygen has been reduced remarkably after the Ar-treatments. Surface structure analysis by valence band spectroscopy reveals that the hybridization between Ti 3d and C 2p is increasing after the subsequent Ar-treatment at the cost of Ti 3d and N 2p hybridization.
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Acknowledgments
Mr. A. Wadikar for the RPES measurements at Indus-1. This work has been funded by UGC-DAE CSR, Indore Centre, India.
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Gupta, R., Soni, S. & Phase, D.M. Improvement of oxidation resistance of TiCN films prepared by laser alloying. Appl. Phys. A 118, 191–196 (2015). https://doi.org/10.1007/s00339-014-8896-z
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DOI: https://doi.org/10.1007/s00339-014-8896-z