Material Composition | FeCuNbSiB |
---|---|
Thickness (µm) | 28~35 |
Saturation Induction Bs (T) | 1.25 |
Curie Temperature (°C) | 570 |
Hardness Hv | 880 |
Crystalline Temperature Tc (°C) | 500 |
Saturation Magnetostriction | 2×10-6 |
Initial Permeability µi | ≥80000 |
Maximum Permeability µm | ≥500000 |
Density (g/cm³) | 7.2 |
Electrical Resistivity (µΩ·cm) | 130 |
Lamination Factor | ≥0.8 |
Operating Temperature Range | -50~120℃ |
Code No | Core Size (mm) | Case Size (mm) | AC (cm²) | Le (cm) | Weight (g) | Suitable Power (kW) |
---|---|---|---|---|---|---|
JJ-502050 | 32×20×54 | 28×24 | 1.35 | 12.87 | 125 | 1-1.5 |
The manufacturing process of nanocrystalline cores involves a rapid solidification process followed by annealing. According to research, the process typically starts with the formation of a metallic melt, which is rapidly cooled to produce an amorphous ribbon. During annealing, the amorphous structure undergoes controlled crystallization, forming uniformly small grains in the nanometer size range. The resulting structure exhibits superior magnetic properties, such as low core loss, high permeability, and high saturation magnetic flux density. The annealing process is critical, as it determines the final magnetic properties of the material.
Nanocrystalline cores are extensively used in high-frequency transformers, inductors, and magnetic shielding applications. In high-frequency transformers, their high permeability and low core loss enhance efficiency and reduce heat. In power supply circuits, nanocrystalline cores provide stable inductance with minimal losses, making them ideal for inductors. Their high permeability also makes them effective in magnetic shielding, protecting sensitive electronics from EMI. According to industry studies, these materials outperform traditional ferrites in various high-end applications, ensuring reliable and efficient performance.
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The primary advantage of nanocrystalline cores is their high magnetic permeability and low core loss, making them ideal for high-frequency and high-performance applications. This ensures efficient energy transfer and minimal heat generation.
Nanocrystalline cores have a higher saturation flux density, typically ranging from 1.2 to 1.6 Tesla, compared to ferrites. This makes them suitable for compact, high-power applications where space and efficiency are critical.
With the increasing demand for efficient power conversion, transitioning from traditional ferrites to nanocrystalline cores is becoming more common. Nanocrystalline cores offer superior magnetic properties, such as high permeability and low core loss, which are essential for high-frequency applications. This transition can significantly improve the efficiency and reliability of power electronic systems, making them more suitable for modern applications such as electric vehicles and renewable energy systems.
When comparing nanocrystalline and ferrite materials in EMC filters, nanocrystalline cores stand out due to their higher permeability and lower core loss. This ensures better suppression of electromagnetic interference (EMI) and improved performance in high-frequency environments. While ferrites are widely used, the advantages offered by nanocrystalline materials make them a preferred choice for advanced EMC filter designs, ensuring better compliance with regulatory standards and improved device performance.