Numerical simulation study on the effect of electrode embedded with magnesia-carbon material on DC arc characteristicsZhaozhao Yan, Jiongming Zhang, Yanbin Yin, Haitao Ma, Huayang Liu and Xingxing WuMetall. Res. Technol., 119 4 (2022) 406DOI: https://doi.org/10.1051/metal/2022044