| Category | Details |
|---|---|
| Composition | Ceramic composite of Iron Oxide (Fe₂O₃) with Strontium (Sr) or Barium (Ba). |
| Cost Performance | - Lowest price among magnets. - Weak magnetic properties. - Excellent corrosion resistance. - Ideal for high-volume, low-demand scenarios. |
| Applications | - Household appliances (speakers, microwave ovens). - Small motors (toys, fans). - Magnetic suction devices. - Automotive sensors. |
| Magnetic Properties | - Low magnetic energy product (3–6 MGOe). - Medium residual magnetism and coercivity. - Curie temperature: ~450°C. - Stable low-temperature performance. |
| Work Environment | - Temperature range: -40°C to 250°C. - Inherent corrosion resistance (no coating required). - Brittle and fragile; unsuitable for complex mechanical stress. |
Ferrites vs. AlNiCo/SmCo:
Cost: Ferrites are the most economical, ideal for mass-produced consumer goods. AlNiCo is mid-range, while SmCo is the most expensive.
Magnetic Performance: Ferrites have the weakest magnetic energy (3–6 MGOe), compared to AlNiCo (5–9 MGOe) and SmCo (18–32 MGOe).
Durability: Ferrites are corrosion-resistant but brittle. AlNiCo offers high stability, while SmCo excels in extreme environments (high temp/radiation).
Applications: Ferrites dominate household/automotive sectors; AlNiCo suits basic instruments; SmCo is reserved for aerospace/military/nuclear use
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