Exploring the Thermal Influence on Plasma Parameter Analysis in Lead Metal Model using LIBS Technology

Abstract

This study involved creating ingots or samples by varying the ratio of one element while keeping the ratios of four other elements constant. The metals Fe, Pb, Zn, Al, and Ni were utilized in the samples. The LIBS method was employed to conduct spectral analysis on a sample composed of all five metals. Assuming that there is local thermal equilibrium inside the plasma, the excitation temperature was determined by analyzing the Pb emission lines that were observable in the sample. The study found that specific heat capacity plays a significant role in whether temperatures decrease or increase.