Characterization of spectral emissions from laser irradiated titanium

Ravindra Kumar Akarapu, Puneit Dua, Alan Campbell, Dana Scott, Abdalla Ramadan Nassar, Judith Todd Copley, Stephen Copley

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Titanium nitride (TiN) is a candidate material for hard and wear resistant coatings on metallic substrates such as titanium (Ti), stainless steel and aluminum. Coating processes include chemical vapor deposition, ion implantation, plasma and thermal nitriding under vacuum and controlled environments. The motivation for the present research is to develop a laser plasma process for high rate formation of TiN coatings on Ti substrates at near-atmospheric pressures. Laser induced plasma generated by a pulsed CO2 laser was used to excite a Ti substrate. The species in the vapor plume were characterized by optical emission spectroscopy. Spatially and temporally resolved spectral characterization was performed as a function of laser power, position of the substrate relative to the focal plane, pulse parameters, and shielding gases. These experiments are a first step in understanding laser assisted plasma deposition of nitride/oxynitride coatings on titanium metal under atmospheric conditions. Results indicate a window of optimal process parameters for developing titanium nitride coatings.

Original languageEnglish (US)
Title of host publicationNitrides and Related Bulk Materials
Pages25-30
Number of pages6
StatePublished - Dec 1 2008
Event2007 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 26 2007Nov 30 2007

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1040
ISSN (Print)0272-9172

Other

Other2007 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period11/26/0711/30/07

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Akarapu, R. K., Dua, P., Campbell, A., Scott, D., Nassar, A. R., Todd Copley, J., & Copley, S. (2008). Characterization of spectral emissions from laser irradiated titanium. In Nitrides and Related Bulk Materials (pp. 25-30). (Materials Research Society Symposium Proceedings; Vol. 1040).