The results indicate that all three kinds of additives can promote sintering of magnesia calcium brick,with the leading of TiO 2.TiO 2 or Fe 2O 3 can react with CaO to get CaTiO 3 or Ca 2Fe 2O 5.CeO 2 can not react with CaO.

• 添加TiO2 、Fe2 O3与CaO反应生成了CaTiO3和Ca2 Fe2 O5,添加CeO2 与CaO不生成化合物。