Nitride and Oxide Formation on Pure Metals by Pulse Laser Irradiation

Abstract
Pure metals (Al, Fe, Nb, Ni, Ti, W, and Zr) have been irradiated in air and N 2 gas using a high-power pulse laser, and surface products, nitrides and/or oxides, have been identified by X-ray diffractometry. Which of the nitrides and oxides are formed on the irradiated surface of these metals mainly depends on the boiling point of the metals. The mechanisms of the formation of nitrides and oxides on the surface of metals irradiated by a high-power pulse laser have been proposed.