Dissolution kinetics of Nd2O3 in NdF3 -LiF-Nd2O3 melts

摘要：

In this paper,dissolution rate of Nd2O3 in NdF3-IiF-Nd2O3 melts was researched.Rate controlling step of Nd2O3 dissolution was studied through comparison of measured value and calculated values of three models.Nd2O3 dissolution behavior could be described by shrinking sphere model or mass transport control model,and rate controlling step was mass transport or heat transfer.For lower Nd2O3 concentration melts,dissolution enthalpy of Nd2O3 was higher and mass transport control was more important;for higher Nd2O3 concentra tion melts,dissolution enthalpy of Nd2O3 was lower and heat transfer control was more obvious.

关键词： NdF3-LiF-Nd2O3 melts dissolution rate dissolution kinetics dissolution model rate controlling step

作者: HU Xianwei WANG Zhaowen YU Yaxin GAO Bingliang SHI Zhongning LIU Fengguo LUO Xudong TAO Wenju

作者单位: School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China

会议类型: 国际会议

会议名称: The 10th China-Russia System on Advanced Materials and Technologies(第十届中俄新材料新工艺研讨会)

会议地点: 浙江嘉兴

会议语种:英文

页码: 719-724

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）