The recovery of metal Sm in the different parts of the crucible were acquired by the chemistry analysis and hot weightness methods.

• 采用化学分析法和热重法得到的坩埚不同部位物料的金属钐收率,静水称量法测定镧渣的孔隙率,证实了镧热还原氧化钐过程在坩埚底部存在烧结堆料现象。