| Title: | Magnetic performance and anticorrosion coating stability of thermally demagnetized Nd-Fe-B permanent magnets for reuse applications |
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| Authors: | ID Tomše, Tomaž, Institut "Jožef Stefan" (Author)
ID Kubelka, Pierre (Author)
ID Moreno López, Rosario (Author)
ID Fleissner, Peter (Author)
ID Grau, Laura (Author)
ID Zaplotnik, Matej (Author)
ID Burkhardt, Carlo (Author) |
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| Files: |  URL - Source URL, visit https://www.mdpi.com/1996-1944/17/23/5927
 PDF - Presentation file, download (8,10 MB)
MD5: 2CB4C941AD88949657892EC0ACBE6381
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | Nd-Fe-B-type permanent magnets, containing approximately 30% critical rare-earth elements by weight, are essential components in renewable energy systems (e.g., wind turbines, hydroelectric generators) and electric vehicles. They are also critical for consumer electronics and electric motors in products like energy-efficient air conditioners and home appliances. In light of advancing sustainability goals, the direct reuse of magnets from end-of-life devices offers a promising alternative to energy-intensive and costly recycling methods based on hydro- and pyrometallurgical processes, as well as modern short-loop recycling through hydrogen processing. However, Nd-Fe-B magnets must be demagnetized before they can be extracted from devices. This study explores the effects of thermal demagnetization, performed either in air or a vacuum, on the stability of anticorrosion coatings and the magnetic performance of remagnetized magnets. Corrosion tests were conducted to assess the compatibility of various coatings with thermal demagnetization, identifying those most suitable for future applications involving magnet reuse. |
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| Keywords: | thermal demagnetization, microstructure |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 07.10.2024 |
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| Article acceptance date: | 28.11.2024 |
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| Publication date: | 04.12.2024 |
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| Publisher: | MDPI |
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| Year of publishing: | 2024 |
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| Number of pages: | str. 1-11 |
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| Numbering: | Vol. 17, iss. 23, [article no.] 5927 |
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| Source: | Švica |
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| PID: | 20.500.12556/DiRROS-21788  |
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| UDC: | 621.7+621.9 |
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| ISSN on article: | 1996-1944 |
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| DOI: | 10.3390/ma17235927 |
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| COBISS.SI-ID: | 218029827 |
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| Copyright: | © 2024 by the authors. |
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| Note: | Nasl. z nasl. zaslona;
Soavtor iz Slovenije: Matej Zaplotnik;
Opis vira z dne 6. 12. 2024;
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| Publication date in DiRROS: | 28.03.2025 |
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| Views: | 688 |
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| Downloads: | 350 |
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| Metadata: |    |
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