Influence Mechanism of CeO2 on the Electrical Conductivity of Electroslag Remelting Slag Based on Electrochemical Method

This article delves into the intricate world of electroslag remelting (ESR) slag systems, focusing on the influence of CeO2 content on electrical conductivity. Through meticulous experimentation using a self-made AC four-probe method, the study reveals how different CeO2 concentrations, temperatures, and CaO/Al2O3 ratios affect the conductivity of the slag. The research highlights that the conductivity of the slag system increases with temperature and the CaO/Al2O3 ratio, but exhibits a non-linear relationship with CeO2 content. Notably, the study finds that CeO2 transforms into Ce2O3 at high temperatures, interacting with other components to form complex oxides that impact the slag's structure and conductivity. The article also explores the phase changes during crystallization and the effect of Ce2O3 activity on conductivity, providing a comprehensive understanding of the underlying mechanisms. The findings offer valuable insights for optimizing the ESR process and improving the properties of steel grades that benefit from rare earth elements.