MgO对钒钛废渣陶瓷性能的影响  

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

作　　者：陈杰[1] 徐佳楠[1] 周阳[1] 张萍[1] 杨为中[1] 

机构地区：[1]四川大学材料科学与工程学院,四川成都610065

出　　处：《钢铁钒钛》2016年第5期80-83,共4页Iron Steel Vanadium Titanium

基　　金：四川省科技支撑计划项目(2015GZ0175)

摘　　要：利用工业废料钒钛渣为原料制备日用陶瓷,在原料球磨时间10 min,烧结温度1 100℃等较佳工艺条件下,研究Mg O添加剂对陶瓷的烧失率、线收缩、吸水率、气孔率、断裂模数等的影响。采用XRD、SEM研究样品的晶相组成和显微结构。试验结果表明:添加0.6%Mg O能显著提高钒钛废渣陶瓷的断裂模数,降低吸水率和气孔率;陶瓷主晶相为石英、钙长石、镁铬尖晶石等。添加Mg O可提高钒钛废渣的用量,实现废弃资源再利用。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 param- eters for 10 min of grinding time and 1 100 ℃ of sintering temperature. Furthermore,the phase composi- tions 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 in- creased 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 vanadi- um and titanium waste residue can be increased which realizes the recycle of waste resources by adding MgO, according to this research.

关 键 词：钒钛废渣 陶瓷 球磨时间 MGO MgCr2O4 线收缩 断裂模数 

分 类 号：TQ174.1[化学工程—陶瓷工业]