Study of the effect of the MgO/Al2O3 ratio on viscosity of blast furnace slagLu Yao, Shan Ren, Guoqing Liu, Qingcai Liu, Ming Kong and Jian YangMetall. Res. Technol., 112 6 (2015) 602DOI: https://doi.org/10.1051/metal/2015036