各種イベントのお知らせ

The 21st ESICMM Seminar

Thermodynamic database for REE and applications:Energetics of the REE-X systems (X = Al, Mg, Zn, Si, Sn, Mn, Pb, Fe, Co, Ni)

開催日: 2015年10月9日(金) 終了

13:30-15:00 at Middle conference room, NIMS Sengen site, 8F

Dr. In-Ho Jung


  Recycling of Rare Earth (RE) elements from permanent magnets becomes a necessity to ensure a sound usage of RE resources and a sufficient RE supply to meet the growing demand for low-CO2 emission technologies.
Permanent magnets are composed of Nd2Fe14B alloy with small additions of Pr, Tb, Dy, Co, Cu, Ni, etc. A possible recycling route consists in the liquid-solid extraction process, in which Nd is dissolved in liquid Mg, whereas Fe and B are essentially insoluble in the solvent. Other metallic solvents, such as Ag, Si, Ti, Pb, Sn, etc., are also possible. As part of a research project to develop REE recycling technology, a large thermodynamic database for REE containing systems was developed.
  In the thermodynamic database development, many discrepancies in existing experimental data and lack of experimental data were resolved by systematic analysis of all available REE systems simultaneously.  In the present study, the energetics of REE-X binary systems where X = Mg, Al, Zn, Si, Sn, Mn, Pb, Fe, Co, Ni, etc. will be presented, and a strategy how we can overcome the lack of experimental data and resolve the discrepancies of existing experimental data will be discussed. Then, a large thermodynamic database for Nd permanent magnet (Fe-Nd-B-Dy-Ce) recycling will be presented with application examples.  




各種イベントのお知らせ

元素戦略拠点

触媒・電池元素戦略拠点
触媒・電池元素戦略研究拠点 (京都大学)
東工大元素戦略拠点
東工大元素戦略拠点 (東京工業大学)
構造材料元素戦略研究拠点
構造材料元素戦略研究拠点 (京都大学)
高効率モーター用磁性材料技術研究組合
高効率モーター用 磁性材料技術研究組合