| Catalogue Code | IN-FeSr-01 |
| CAS No. | 12023-91-5 |
| Chemical Formula | SrFe12O19 |
| Compound Name | Strontium Ferrite |
| Surface Area (m2/g) | N/A |
| Particle size d50 (μm) | <1.5 |
| Purity (%) | >99.9 |
Introduction
Strontium ferrite (SrFe12O19) is a compound with ceramic features but is known for its excellent magnetism properties, which make it extremely valuable in electronics. As a member of the hexaferrite family, SrFe12O19 is primarily used in applications that require permanent magnets, electromagnetic components, and devices with specific electrical and magnetic characteristics.
Properties
Strontium ferrite has several applications in various sectors. Some of the areas where strontium ferrite is used are as follows:
| Property | Description |
| Appearance | Powder |
| Molar mass | ~ 183.3 g/mol |
| Magnetic Properties | Hard magnetic material, high coercivity |
| Density | ~ 5.0 g/cm³ |
| Thermal Stability | High thermal stability |
Applications
Following are some of the applications of strontium ferrite:
- Permanent Magnets: Widely used in producing high-performance permanent magnets for electric motors, generators, and magnetic assemblies.
- Microwave Devices: Strontium ferrite powder is employed in microwave resonators and filters due to their high-frequency stability.
- Electromagnetic Components: Utilized in inductors, transformers, and other electromagnetic devices due to their magnetic properties.
- Data Storage: Investigated for use in magnetic recording media and hard drives because of its ability to maintain magnetization.
- Spintronics: Anisotropic strontium ferrite is explored for advanced applications in spintronic devices, which leverage both the spin and charge of electrons for improved functionality.
- Sensors: These are used in magnetic sensors and actuators due to their sensitivity to magnetic fields.
FAQs
Answere: Strontium ferrite primarily comprises strontium oxide (SrO) and iron oxide (Fe2O3).
Answere: Fundamental properties include high coercivity, thermal stability, and semiconducting to insulating electrical conductivity.
Answere: Compared with other ferrites, strontium ferrite generally indicates a higher coercivity and thermal stability, so it is probably better suited for applications at high temperatures and in demanding environments.
Answere: Yes, because of its stable magnetic properties, strontium ferrite is extensively used in microwave devices and applications requiring high-frequency performance.
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