Dresden 2026 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 52: Poster Magnetism III
MA 52.31: Poster
Donnerstag, 12. März 2026, 15:00–17:00, P4
Towards Sustainable NdFeB Magnets Using Advanced Recycling — •Aybike Paksoy1, Amrita Khan1, Abdullatif Durgun1, Mario Schönfeldt2, Hasan Mahmudul2, Iliya Radulov2, Imants Dirba1, and Oliver Gutfleisch1 — 1Functional Materials, Technical University of Darmstadt, Darmstadt, Germany — 2Fraunhofer IWKS, Fraunhofer Research Institution for Materials Recycling and Resource Strategies, Hanau, Germany
NdFeB permanent magnets exhibit the highest maximum energy product (BH)max at room temperature, making them important for many technologies essential to the clean energy transition. However, their reliance on critical rare earth elements raises significant environmental, economic, and geopolitical challenges [1]. Consequently, increasing attention has been directed toward the recycling of end-of-life NdFeB permanent magnets. Enhancing the sustainability of rare earth permanent magnets and reducing their criticality are key requirements for environmentally responsible products. The magnetic properties of NdFeB magnets are strongly governed by their microstructure. Recycling routes can alter grain size, crystallographic texture, and defect density, which in turn influence magnetic performance. In this work, advanced recycling strategies are explored with the aim of producing sustainable NdFeB magnets while preserving their functional properties. [1] M. Schönfeldt et al., J. Alloys and Compounds (2023) https://doi.org/10.1016/j.jallcom.2023.168709
Keywords: NdFeB; Permanent magnet; Recycling; Criticality; Rare earth