Hydrogen plasma smelting reduction of Cr2O3/Chromite: challenges, insights, and initial results of direct and sustainable stainless-steel productionMohammad Jafarzadeh, Mert Saraçoğlu, Michael A. Zarl, Daniel Ernst and Susanne K. MichelicMatériaux & Techniques, 114 3 (2026) 306DOI: https://doi.org/10.1051/mattech/2026003