Effect of ZrO2 on the Properties and RH Degasser Slag Corrosion Resistance Behavior of MgO-Cr2O3 Refractory
To improve the properties and RH degasser slag corrosion resistance of magnesia-chrome refractory,the effect of the addition of ZrO2 was investigated.The results showed that the presence ZrO2 additive can densify the magnesia-chrome samples due to the promotion of grain boundary activities and ultimately direct bond formation,which improved the high temperature mechanical properties and corrosion resistance.The results also indicated that in the RH degasser slag system with a high ratio of calcia to silica,the slag resistance behavior of magnesia-chrome composite added with ZrO2 could be described as follows:the ZrO2 reacts with CaO to form the calcium zirconate compound which functions as densification and simultaneously increases corrosion resistance performance by blinding pores and thickening slag viscosity.Therefore,it is expected to be the major reason why ZrO2 enhanced corrosion resistance of magnesia-chrome refractory.
YANG Weibo YUAN Lin HU Jianhui CHEN Songlin XU Linlin GUO Xueliang YANG Youran
Ruitai Technology Co.Ltd., China Building Materials Academy, Beijing, 100024, China Ruitai Technology Co.Ltd., China Building Materials Academy, Beijing, 100024, China;Henan Ruitai Ref Henan Ruitai Refractory Materials Technology Co.Ltd., Zhengzhou,451100, China State Key Laboratory of Green Building Materials, China Building Materials Academy, Beijing 100024,
国际会议
The 6th International Symposium on Refractories (第六届国际耐火材料会议)
郑州
英文
183-186
2012-10-18（万方平台首次上网日期，不代表论文的发表时间）