Magnet systems for demanding operating envelopes.

High-reliability magnetics are specified where field must hold through temperature, vibration and long service life. SmCo and Alnico are the usual high-temperature choices; NdFeB is used where mass and energy product dominate and the thermal window allows it.

• Bias magnets for microwave circulators and isolators in RF and satellite communication chains
• Sensors, relays, servo motors and actuators in airframe and ground systems
• Navigational instruments, gauges and fluid-flow meters
• Radar-array and antenna positioning hardware
• Door actuators and braking-system magnetics on aircraft platforms

What collaborators typically specify: working temperature, (BH)max, coercivity, coating, dimensional tolerance and a measured hysteresis loop — all of which sit inside ISIT’s magnet and laboratory brief.

Permanent-magnet machines dominate compact generators and traction motors because high (BH)max cuts copper and iron mass. NdFeB is the default in wind-generator rotors and EV-class motors; ferrites remain in cost-sensitive drives and power conversion.

• NdFeB segments for wind-turbine generators
• Motor magnets for automotive fans
• BLDC machines at 0.8, 3.0 and 5.0 kW developed on campus
• Soft-ferrite cores for high-frequency magnetics in converters

Factories use magnets to lift, locate, couple and sense without mechanical complexity. Electro-permanent systems hold steel without continuous power and release on a pulse — suitable for robotic end-effectors, milling tables, sorting and packing lines.

• Electro-permanent grippers and lifting heads, 2–50 kg class
• Magnetic workholding for machining
• Couplings, bearings and servo-motor magnets
• Line magnets for sorting and packing