Developing MHz high-performance SMMs is the inevitable course for modern power systems supported by wide bandgap semiconductor devices. However, huge loss in SMMs has become bottleneck for efficient energy conversion. Here, we report an approach for significantly decreasing the MHz loss in SMMs.

2025年1月3日 · The present work describes the process of the creation and analysis of the first dataset containing processing parameters and functional properties of soft magnetic composites (SMC). All data...

2025年2月5日 · MHz mechanism of permeability in soft magnetic composites (SMCs) based on epoxy-coated spherical Fe-Si-Al particles is studied. It is found the permeability at 1 MHz decreases from 23 ( ± 0.69 ) to 10 ( ± 0.3 ) and the cut-off frequency of permeability increases from 126 ( ± 3.78 ) MHz to over 1 GHz with decreasing the volume fraction of ...

With these guidelines, advanced soft magnetic materials for high frequency (>;1MHz) and high power applications have been developed based on three materials platforms: soft magnetic nanocomposite (SMNC), modified NiZn ferrites (SMNZ3M), and ferroxplanar ferrites (SMMDFZ).

2024年10月28日 · Here, a high-performance Fe–Si soft magnetic composites with a 2D ordered domain structure are reported, enabling efficient energy conversion at MHz frequencies. By transforming spherical particles into flakes and arranging them in layers, 2D magnetic domains are created within the composite.

2025年1月2日 · The soft metalens allows for transmission across broadband frequencies (50 kHz to 0.4 MHz) through 3D-printed human skull models mimicking aberration layers.

2024年10月28日 · MHz High Performance of Soft Magnetic Composite with Ordered Domain Structure for Efficient Conversion of Electrical Energy Journal: Advanced Functional Materials

The main drawback for soft ferrites is that the BS is relatively low. Two kinds of the most common soft ferrites are Mn-Zn ferrites ((Mn, Zn)Fe2O4) and Ni-Zn ferrites ((Ni, Zn)Fe2O4). Mn-Zn ferrites are commonly used below 1 MHz, whereas Ni-Zn ferrites can be used at much higher frequencies, but the BS and permeability for the latter are lower.

2024年1月1日 · In this study, we propose a novel two-step calibration method to compensate the phase angle discrepancy in high frequency power loss measurement, which provides an effective solution to characterize soft magnetic material at frequencies up to 20 MHz.

Here, a high‐performance Fe–Si soft magnetic composites with a 2D ordered domain structure are reported, enabling efficient energy conversion at MHz frequencies. By transforming spherical particles into flakes and arranging them in layers, 2D …