Kinetics of non-isothermal precipitation process of perovskite phase in oxidized Ti-bearing blast furnace slag
Kinetics of non-isothermal precipitation process and crystal growth of perovskite phase in oxidized Ti-bearing slag were investigated.The oxidized slag was obtained by blowing the air into the molten Ti-bearing blast furnace slag through a lance.The experimental results show that the cooling rate has important effect on precipitation and growth of perovskite phase in oxidized slag; the lower cooling rate is in favor of not only the increase of the volume fraction of perovskite phase,but also the growth of perovskite phase grain sizes.The particle coarsening in non-isothermal process has important effect on the crystal growth of perovskite phase.The relative volume fraction of perovskite phase could be approximately described by JMAK equation,and the experiential expression of the average crystal radius of perovskite phase was also obtained.
Ti-bearing slag oxidation crystallization kinetics
WANG Ming-yu HE Yue-hui WANG Xue-wen LOU Tai-ping SUI Zhi-tong
School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China
国际会议
2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)
长沙
英文
2007-11-28（万方平台首次上网日期，不代表论文的发表时间）