The effect of TiO2 addition to the stainless steel slag glass-ceramics was studied.Different mass percenta-ges of TiO2 were added to four samples of the parent glass made from stainless steel slag and cullet.The tempera-tures of nucleation and crystallization were determined by differential scanning calorimetry (DSC).According to X-ray diffraction (XRD)and scanning electron microscopy (SEM)analysis,adding TiO2 refined grains and restricted the formation of the akermanite phase by capturing Ca2+ to form the perovskite phase.Diopside was the main crystal phase of the glass-ceramics.The bending strength and Vickers hardness increased with the addition of TiO2 .The op-timal amount of TiO2 was 7 mass%,and the highest bending strength and Vickers hardness were 144.6 MPa and 6.26 GPa,respectively.
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