AP0979 Spectroscopy of Copper/Zinc Alloys Plasma Generated by Laser

Abstract

In this work, atmospheric plasmas are produced from different Cu-Zn alloys by Nd:YAG laser. Three copper alloys with different zinc rations, namely Cu80-ZnE100, Cu74-ZnE100 and Cu68-ZnE100 are examined. The Boltzmann plot approach and the Stark broadening technique are utilized to determine the electron temperature and plasma density for the induced plasma by laser. The electron temperature for the Cu80-ZnE100 and Cu74-ZnE100 plasmas is enhanced by 0.78 eV, and the electron density is increased from 7.6x10¹⁵ cm^-3 to 9.4x10¹⁵ cm^-3 when the laser beams hit the samples, while, the electron temperature in the Cu68-ZnE100 plasma is enhanced to 0.83 eV, and the density is increased to 1.29x10¹⁶ cm^-3.