Improving the Performance of FINEMET Nanocrystalline Magnetic Powder Core by a Revamped Process and the Corresponding Mechanism

被引：0

作者：

Li Q. ^{[1
]}

Guo J. ^{[1
]}

Hu J. ^{[1
]}

Wang H. ^{[1
]}

Lian F. ^{[2
]}

Lu C. ^{[3
]}

机构：

[1] College of Engineering, Heilongjiang August First Land Reclamation University, Daqing

[2] Key Laboratory for Anisotropy and Texture of Materials of Ministry of Education, Northeastern University, Shenyang

[3] Advance Technology and Materials Co., Ltd., Beijing

来源：

| 2017年 / Cailiao Daobaoshe/ Materials Review卷 / 31期

关键词：

Annealing; FINEMET; Loss; Magnetic powder core; Permeability; Revamped process;

D O I：

10.11896/j.issn.1005-023X.2017.016.006

中图分类号：

学科分类号：

摘要：

The magnetic property of FINEMET nanocrystalline magnetic powder core prepared by a revamped process was studied through comparative experiments, and the corresponding physical mechanism was observed. Scanning electron microscopy, transmission electron microscopy and X-ray diffraction were used to characterize the morphology, internal structure and lattice deformation of magnetic powders, B-H analyzer was used to characterize magnetic properties of magnetic powder core. The results showed that the revamped process could effectively reduce the loss of the magnetic powder core, and promote magnetic permeability and frequency range. The hysteresis loss and eddy current loss could be decreased by increasing milling time, and the optimum mil-ling time was 8 h. Our experiments found that the magnetic powders produced by the revamped process possess a relatively low lattice deformation, which means that the effective release of the remnant internal stress leads to the improve of magnetic powder core's performance. © 2017, Materials Review Magazine. All right reserved.

引用

页码：26 / 30

页数：4

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