Permanent magnets—especially high-performance NdFeB (Neodymium-Iron-Boron)—are central to modern motors, robotics, automation, aerospace, renewable energy, medical devices, and sensing systems. However, sintered NdFeB suffers from inherent vulnerabilities: chemical reactivity, moisture sensitivity, structural brittleness, and weak grain-boundary strength. These weak points make protective coatings an essential part of any magnet engineering or application design. Coatings determine whether […]





