Formation of Coatings under the Action of Laser Radiation in Liquid Media

Abstract

The influence of the chemical composition of the substrate material on the chemical and phase composition of the formed coating was investigated. A number of experiments aimed at studying the interaction of titanium alloys with ultrashort laser pulses in different reaction media was carried out. A new method for the formation of titanium carbide under the action of ultrashort laser pulses on the surface of a titanium sample in a liquid hydrocarbon and liquid nitrogen medium is described. The description of the experiment is presented. The treated surface was investigated using a scanning electron microscope. Raman spectra from the surface of treated titanium alloys under different exposure conditions are obtained.

Formation of Titanium Nitride, Titanium Carbide, and Silicon Carbide Surfaces by High Power Femtosecond Laser Treatment

“…A silicon surface coated with carbon is transformed to SiC by femtosecond laser irradiation [30] . A TiC surface is formed on Ti plates immersed in hexane or acetone upon femtosecond laser pulse treatment [31–33] . A TiN/TiON surface is formed on titanium by femtosecond laser pulses in a nitrogen atmosphere [34,35] .…”

“…Cleaning the surface with a first femtosecond laser process in argon leads to a pure Ti surface, on which TiN is formed in a second step under N 2 atmosphere [35] . In liquid nitrogen, TiN is formed upon femtosecond laser irradiation of titanium, too, and the surface is covered with an inhomogeneous, cracked TiN layer [32] …”