Effect of the aluminum content on the mechanochemical behavior in ternary system Al-B2O3-C

► Effect of Al content on the mechanochemical behavior of Al-B2O3-C was investigated. ► Al amount, within a range of 2-7 mol plays key role. ► This suggests that increasing Al amount to 4 mol is thermodynamically favorable. ► Aluminothermic reaction provided enough heat for activating carbothermic reduction.