Technical Specifications:
- Material: Strontium Iron Oxide (SrFe₁₂O₁₉)
- Purity: 99.9% or higher
- Particle Size: 1-3 µm (microns)
- Shape: Typically irregular or angular, depending on the manufacturing process
- Density: Approximately 5.0 g/cm³
- Melting Point: Approximately 1,400°C (2,552°F)
- Boiling Point: Sublimes at approximately 2,500°C (4,532°F)
Chemical Composition:
- Strontium (Sr): ~25%
- Iron (Fe): ~75%
- Oxygen (O): ~30%
Applications:
1. Magnetic Materials:
- Strontium Iron Oxide (SrFe₁₂O₁₉), also known as Strontium Ferrite, is widely used as a permanent magnetic material. The 1-3 µm powder size is ideal for manufacturing hard ferrite magnets due to its high coercivity and magnetic saturation.
- It is used in the production of permanent magnets for various applications such as motors, generators, speakers, and magnetic couplings in industries like electronics, automotive, and telecommunications.
2. Magnetic Recording Media:
- Strontium Ferrite is commonly used in the production of magnetic recording media such as magnetic tapes, discs, and heads. It is a critical material in data storage devices, where its magnetic properties ensure high data storage density and reliability.
- This includes its use in audio cassettes, video tapes, and hard drives for data storage, audio recording, and video recording.
3. Magnetic Sensors and Devices:
- SrFe₁₂O₁₉ is used in magnetic sensors and magnetic field detectors due to its high magnetic permeability and sensitivity to magnetic fields. It is used in position sensors, speed sensors, and current sensors in automotive, industrial, and consumer electronics.
- The fine 1-3 µm powder ensures that the material provides high resolution and precise measurements for detecting and measuring magnetic fields.
4. Electromagnetic Interference (EMI) Shielding:
- Strontium Ferrite is used for electromagnetic interference (EMI) shielding in electronic devices. The material’s magnetic properties make it effective at absorbing electromagnetic waves and preventing interference between sensitive electronic components.
- It is employed in shielding cables, circuit boards, connectors, and other electronic devices to protect them from external interference, ensuring stable and efficient operation.
5. Catalysis and Chemical Reactions:
- Strontium Ferrite is also utilized as a catalyst or catalyst support in various chemical reactions, including hydrogenation, oxidation, and dehydrogenation. Its high surface area and magnetic properties make it suitable for use in industrial catalysis and chemical synthesis.
- It can be used in the production of synthetic fuels, fine chemicals, and other refining processes where high thermal stability and magnetic functionality are needed.
6. Magnetorheological Fluids (MRF):
- Strontium Iron Oxide is used in the formulation of magnetorheological fluids (MRF), which change their viscosity when exposed to an external magnetic field. These fluids are used in dampers, shock absorbers, and brakes in automotive, robotics, and aerospace applications.
- The fine particle size (1-3 µm) ensures faster response and control when the fluids are exposed to a magnetic field, making it suitable for adaptive systems that can dynamically adjust their properties.
7. Ceramic Materials:
- Strontium Ferrite is used in the manufacture of ceramic materials, particularly magnetic ceramics and electroceramics. It is employed in the creation of high-performance capacitors, resistors, and inductors for microwave and radio-frequency applications.
- The 1-3 µm particle size makes it ideal for fine dispersion in electroceramic components used in communication systems, radar systems, and other high-frequency applications.
8. Battery and Supercapacitor Applications:
- Strontium Ferrite is also explored in battery and supercapacitor applications for its electrical conductivity and magnetic properties. The powder is used in the production of electrodes and supercapacitors where high energy density and fast charge/discharge cycles are required.
- Its magnetic properties are beneficial for improving energy storage and efficiency in devices used in electric vehicles (EVs), renewable energy systems, and backup power systems.
9. Nuclear Applications:
- Strontium Ferrite is used in nuclear applications for radiation shielding and neutron absorption. The material’s high density and magnetic properties make it effective in protecting sensitive components from radiation in nuclear reactors.
- It is used in fuel cladding, reactor shielding, and other components in nuclear power plants where radiation resistance and thermal stability are essential.
10. Research and Development:
- Strontium Ferrite is extensively used in research and development for studying advanced magnetic materials, nanoelectronics, and energy-efficient systems. Researchers explore its potential in magnetic storage, nanomaterials, and superconducting devices.
- Its application in magnetic nanomaterials is being investigated for next-generation technologies in magnetic resonance imaging (MRI), quantum computing, and energy harvesting systems.
Summary:
Strontium Iron Oxide Micron Powder (SrFe₁₂O₁₉, 99.9%+, 1-3 µm) is a high-performance material known for its excellent magnetic properties, high coercivity, and thermal stability. It is primarily used in magnetic materials, data storage, electromagnetic shielding, catalysis, and magnetic sensors. The fine particle size ensures high magnetic efficiency, making it ideal for permanent magnets, magnetic recording, magnetic field sensing, and energy storage applications. Its unique combination of properties makes it indispensable in a variety of industries, including electronics, automotive, medical imaging, and aerospace.
