The Effect of MgCl2 Addition on the Formation of Magnesium Aluminate Spinel Nanoparticles at 400 °C

In this paper, the effect of MgCl2 addition on the formation of MA spinel nanoparticles at 400 °C was investigated. For this reason, the stoichiometric mixture of MgCO3 and calcined aluminum was calcined at 1100 °C for 1 h. Then, the calcined composition was wet-milled and after addition of 6% MgCl2 the compositions were pressed and fired at 400 °C. The thermal behavior of compositions was evaluated by STA. Besides, the phase composition and microstructure of sintered samples were studied by XRD and FE-SEM, respectively. The results showed that MgCl2 addition leads to formation of spinel at 400 °C. The microstructural evaluations confirmed the formation of spinel nanoparticles with addition of MgCl2.