Effects of Magnesium Oxide on Properties of Ceramics Made from Vanadium and Titanium Waste Residue

The domestic ceramics was prepared using industrial vanadium and titanium waste residue as raw material,and the effects of additive magnesium oxide(MgO) on the ignition loss,linear shrinkage,water absorption,porosity and rupture modulus of the ceramics were investigated with the optimum parameters for 10 min of grinding time and 1 100℃ of sintering temperature.Furthermore,the phase compositions and microstructure of the ceramics were also analyzed by XRD and SEM,respectively.The results show that with adding 0.6% MgO the rupture modulus of the obtained ceramicscan be significantly increased and the water absorption and porosity of the ceramics are both decreased,and the main phases of the ceramics are consisted of quartz,anorthite and chrome-magnesium spinel.The usage amount of vanadium and titanium waste residue can be increased which realizes the recycle of waste resources by adding MgO,according to this research.