Seminar on Latest Trends in Post-Neodymium Magnet Development
Nihon IR Co., Ltd. will host an online seminar on June 17, 2026, focusing on next-generation magnet technologies such as Sm-Fe-N to mitigate rare-earth supply risks in the EV era.
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This seminar will cover the overview of post-neodymium magnet candidates, the history of commercialization of the leading material Sm-Fe-N (Sm2Fe17N3) magnets, research and development to overcome sintering difficulties, and the latest examples of molding and densification.
As the reduction of CO2 emissions becomes an urgent priority, the adoption of wind power and electric vehicles (EVs) is accelerating. Neodymium magnets, widely used in these motors, are expected to see increased demand. However, there are concerns about the future shortage of not only heavy rare earth elements (Dy, Tb) used for high-temperature resistance but also Nd itself. To alleviate these raw material supply risks, there is a demand for developing materials that replace or supplement neodymium magnets.
Seminar Overview
Seminar Name: Latest Trends in Post-Neodymium Magnet Development: Explaining Featured Technologies such as Sm-Fe-N Magnets
Date and Time: June 17, 2026 (Wednesday), 13:30–15:30
Format: Online attendance via Zoom
Fee: 29,700 JPY (tax included)
Instructor: Dr. Akihide Hosokawa (Senior Researcher, National Institute of Advanced Industrial Science and Technology - AIST)
Course Details
In this seminar, the basics of permanent magnets, characteristics and manufacturing methods of neodymium magnets, and R&D trends will be organized.
Then, the overall picture of post-neodymium magnet candidates and the background of why Sm-Fe-N (Sm2Fe17N3) is attracting attention will be explained. The latter half will cover the history of Sm-Fe-N magnet commercialization and challenges such as sintering difficulty and oxidation, introducing efforts in low-oxygen powder metallurgy, cold plastic working, and liquid phase sintering. Furthermore, the latest research toward higher performance, such as Fe-rich compositions and nanocomposites, will be outlined.
Seminar Program
1. Basics of Permanent Magnet Materials and Recent Trends
1.1 Magnetism / 1.2 Soft and Hard Magnetism / 1.3 Various Hard Magnet Materials / 1.4 Electrified Society and Permanent Magnets / 1.5 Strengths and Applications of Neodymium Magnets / 1.6 Manufacturing Methods / 1.7 R&D Trends / 1.8 Position of Sm-Fe-N
2. History of Sm2Fe17N3 Magnets (1990–2015)
2.1 Birth and Commercial Use / 2.2 Sintering Difficulties and Challenges
3. Sm-Fe-N Magnets and Low-Oxygen Powder Metallurgy (2015–)
3.1 Coercivity Drop due to Oxidation / 3.2 Effects of Low-Oxygen Powder Metallurgy / 3.3 New Challenges
4. Densification by Cold Plastic Working (Shift in Thinking)
4.1 High-Pressure Torsion / 4.2 Rolling Process
5. Challenges in Liquid Phase Sintering and Recent Results
5.1 Difficulties / 5.2 Efforts to Overcome (Search for Low-Melting Sintering Aids)
6. Efforts for Higher Performance
6.1 Fe-rich TbCu7-type Sm-Fe-N Anisotropic Magnets / 6.2 Fe-rich ThMn12-type Sm-Fe Magnets / 6.3 Nanocomposite Magnets
Summary
Target Audience:
- Engineers and process designers of magnet materials
- Motor engineers and designers
- Newcomers to magnet material development
Nihon IR Technical Education Institute will continue to provide useful knowledge and know-how through technical education services (seminars, e-learning, training, publishing) for the manufacturing industry.
As the reduction of CO2 emissions becomes an urgent priority, the adoption of wind power and electric vehicles (EVs) is accelerating. Neodymium magnets, widely used in these motors, are expected to see increased demand. However, there are concerns about the future shortage of not only heavy rare earth elements (Dy, Tb) used for high-temperature resistance but also Nd itself. To alleviate these raw material supply risks, there is a demand for developing materials that replace or supplement neodymium magnets.
Seminar Overview
Seminar Name: Latest Trends in Post-Neodymium Magnet Development: Explaining Featured Technologies such as Sm-Fe-N Magnets
Date and Time: June 17, 2026 (Wednesday), 13:30–15:30
Format: Online attendance via Zoom
Fee: 29,700 JPY (tax included)
Instructor: Dr. Akihide Hosokawa (Senior Researcher, National Institute of Advanced Industrial Science and Technology - AIST)
Course Details
In this seminar, the basics of permanent magnets, characteristics and manufacturing methods of neodymium magnets, and R&D trends will be organized.
Then, the overall picture of post-neodymium magnet candidates and the background of why Sm-Fe-N (Sm2Fe17N3) is attracting attention will be explained. The latter half will cover the history of Sm-Fe-N magnet commercialization and challenges such as sintering difficulty and oxidation, introducing efforts in low-oxygen powder metallurgy, cold plastic working, and liquid phase sintering. Furthermore, the latest research toward higher performance, such as Fe-rich compositions and nanocomposites, will be outlined.
Seminar Program
1. Basics of Permanent Magnet Materials and Recent Trends
1.1 Magnetism / 1.2 Soft and Hard Magnetism / 1.3 Various Hard Magnet Materials / 1.4 Electrified Society and Permanent Magnets / 1.5 Strengths and Applications of Neodymium Magnets / 1.6 Manufacturing Methods / 1.7 R&D Trends / 1.8 Position of Sm-Fe-N
2. History of Sm2Fe17N3 Magnets (1990–2015)
2.1 Birth and Commercial Use / 2.2 Sintering Difficulties and Challenges
3. Sm-Fe-N Magnets and Low-Oxygen Powder Metallurgy (2015–)
3.1 Coercivity Drop due to Oxidation / 3.2 Effects of Low-Oxygen Powder Metallurgy / 3.3 New Challenges
4. Densification by Cold Plastic Working (Shift in Thinking)
4.1 High-Pressure Torsion / 4.2 Rolling Process
5. Challenges in Liquid Phase Sintering and Recent Results
5.1 Difficulties / 5.2 Efforts to Overcome (Search for Low-Melting Sintering Aids)
6. Efforts for Higher Performance
6.1 Fe-rich TbCu7-type Sm-Fe-N Anisotropic Magnets / 6.2 Fe-rich ThMn12-type Sm-Fe Magnets / 6.3 Nanocomposite Magnets
Summary
Target Audience:
- Engineers and process designers of magnet materials
- Motor engineers and designers
- Newcomers to magnet material development
Nihon IR Technical Education Institute will continue to provide useful knowledge and know-how through technical education services (seminars, e-learning, training, publishing) for the manufacturing industry.