Ferrite materials with high saturation magnetic induction intensity and high permeability for magnetic field energy harvesting: Magnetization mechanism and Brillouin function temperature characteristics

Wu, Tianxiao; Ju, Dengfeng; Wang, Chao; Huang, Hui; Li, Chunlong; Wu, Chuanjian; Wang, Chaoming; Liu, Hongjing; Jiang, Xiaona; Kuan, Yen-Cheng; Zhong, Yu; Liu, Kewen; Lan, Zhongwen; Li, Qifan; Tian, Yin; Sun, Lin; Fan, Yong; Sun, Kening

doi:10.1016/j.jallcom.2022.167654

Cited by 8 publications

(1 citation statement)

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“…MnZn ferrites are the core materials in power transformers, sensors and other electronic devices due to their excellent soft magnetic performance, such as high initial permeability (µ i ), high flux density (B s ), low power loss (P cv ) and relatively high Curie temperature (T C ) [1][2][3][4][5][6]. With the continuous development of 5G communication technology and third generation wide band gap (WBG) semiconductors, electronic devices are developing toward miniaturization and high efficiency [7][8][9]. When the magnetic core in the electronic device is subjected to an AC magnetic field, some of the power is lost in the core and dissipated as heat and sometimes noise.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Densified Fine-Grain High-Frequency MnZn Ferrite Using the Cold Sintering Process

Ying

et al. 2023

Materials

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The densified MnZn ferrite ceramics were prepared using the cold sintering process under pressure, with an acetate ethanol solution used as the transient solvent. The effects of the transient solvent, the pressure and annealing temperature on the density, and the micromorphology and magnetic properties of the sintered MnZn ferrites were studied. The densified MnZn ferrite was obtained using the cold sintering process and its relative density reached up to 85.4%. The transient solvent and high pressure are essential to the cold sintering process for MnZn ferrite. The annealing treatment is indispensable in obtaining the sample with the higher density. The relative density was further increased to 97.2% for the sample annealed at 950 °C for 6 h. The increase in the annealing temperature reduces the power loss at high frequencies.

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