Reaction pathways in synergistic carbothermal reduction of fly ash and red mud for ferrosilicon alloy synthesis⋆Jingyu Zhao, Yingjiang Wen, Jiayong Qiu, Kai Zhao, Xiaoyue Fan, Yifei Lv, Zhuo Chen, Dianchun Ju, Runsheng Xu and Jianliang ZhangMetall. Res. Technol., 123 3 (2026) 316DOI: https://doi.org/10.1051/metal/2026017