Description
Strontium and barium-based hexa ferrites with high coercivity and stability, engineered for EMI shielding, microwave absorption, and permanent magnets.
Key Features:
Rare-earth-free formulation
High magnetic anisotropy
Temperature stability up to 450°C
Tailored particle size for specific frequency ranges
Quick Selection Guide Table
| Application | Saturation Magnetization (Ms) | Coercivity (Hc) | Reason |
|---|---|---|---|
| Automotive Applications (Alternators, sensors, actuators, electric motors) |
~50–65 emu/g | ~800–1500 Oe | Automotive magnets (e.g., ferrites, bonded NdFeB) need good temperature stability (up to 150–200 °C) and moderate coercivity to resist demagnetization from varying loads but not as high as military radar-absorbing ferrites. |
| Speaker & Audio Applications (Loudspeakers, headphones, microphones) |
~60–80 emu/g (NdFeB higher, ferrites around 65–75) |
~200–500 Oe for ferrites ~800–1000 Oe for NdFeB |
Audio magnets prioritize high flux density for efficient sound generation but don’t require extreme coercivity; too high can make tuning difficult. |
| General Magnetic Material Replacement (Small motors, fridge magnets, holding devices, educational kits) |
~40–60 emu/g | ~200–800 Oe | Cost-effective ferrite compositions with lower coercivity are used, easy to magnetize/demagnetize and mass produce. |
