Beyond Rare Earths: Rethinking Electric Motor Design with Next-Generation Materials
This session presents the design, simulation, and experimental validation of a rare-earth-free single-sided axial flux synchronous motor using iron nitride (FeN) permanent magnets and soft magnetic composite (SMC) core.
The proposed topology leverages 3D flux paths to achieve high torque density while mitigating demagnetization risks associated with low coercive FeN magnets. Prototype tests results demonstrate good agreement with simulations. The study confirms the technical feasibility of sustainable, geopolitically resilient motor solutions without rare-earth materials.
- Rare-earth-free motor technologies: Design strategies and material innovations enabling high-performance electric motors without reliance on critical rare-earth elements.
- Advanced magnetic materials: Integration and characterization of iron nitride permanent magnets and soft magnetic composites for 3D flux motor topologies.
- Simulation-driven development: Coupled electromagnetic and structural modelling workflows validated through prototype testing.
Sustainability and supply-chain resilience: Motor solutions addressing environmental impact, manufacturing efficiency, and geopolitical risks in magnet supply.
Tuesday 19 May 15:45 - 16:15 Electric Motor Forum
Advancements in Electrical & Mechanical Engineering and Automation
Sustainability and Energy Efficiency
This session presents the design, simulation, and experimental validation of a rare-earth-free single-sided axial flux synchronous motor using iron nitride (FeN) permanent magnets and soft magnetic composite (SMC) core.
Electric Motor Forum Europe/London
Speakers
Senior Applications Specialist, Alvier Mechatronics AB
