For sinter with 25% and 50% MAC fines the iron oxides mainly consisted of hematite and magnetite, the bonding phase were mainly dicalcium silicate, glassiness, and a few amount of calcium ferrite.
配比为25%和50%的种烧结中氧化物均以赤、为主,粘结相主要以酸钙、硅酸二钙和玻璃质为主,但酸钙数量不多。