二级颗粒粒径对颗粒级配软磁粉芯磁性能的影响

doi:10.11896/cldb.22020065

材料导报

2023, Vol. 37

Issue (18): 22020065-5 https://doi.org/10.11896/cldb.22020065

无机非金属及其复合材料

二级颗粒粒径对颗粒级配软磁粉芯磁性能的影响

张华^1,2,3, 李梦冉¹, 徐澎鹏¹, 李晶晶¹, 张学斌^1,3, 刘伟¹, 汪金芝⁴, 苏海林^1,2,3,4,*

1 合肥工业大学材料科学与工程学院,合肥 230009
2 安徽瑞德磁电科技有限公司,安徽芜湖 241002
3 淮北瑞德磁电科技有限公司,安徽淮北 235000
4 宁波工程学院机器人学院,浙江宁波 315211

Effect of Second-level Particle Size on the Magnetic Properties of Particle Grading Soft Magnetic Powder Core

ZHANG Hua^1,2,3, LI Mengran¹, XU Pengpeng¹, LI Jingjing¹, ZHANG Xuebin^1,3, LIU Wei¹, WANG Jinzhi⁴, SU Hailin^1,2,3,4,*

1 School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China
2 Anhui Red Magneto-electric Technology Co., Ltd., Wuhu 241002, Anhui, China
3 Huaibei Red Magneto-electric Technology Co., Ltd., Huaibei 235000, Anhui, China
4 Robotics Institute, Ningbo University of Technology, Ningbo 315211, Zhejiang, China

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摘要依据颗粒级配理论,选用不同粒径的二级铁硅铝颗粒与一级铁硅铝颗粒和三级羰基铁粉颗粒按固定比例进行混合,制备了一系列级配软磁粉芯,研究了二级颗粒粒径对级配粉芯密度、体电阻率、有效磁导率、直流偏置性能以及损耗等物理性能的影响。结果表明,不同粒径的二级颗粒主要通过改变粉芯的孔隙率和调节各级颗粒在粉芯内的分布状态两个途径对粉芯的磁性能产生影响。前者直接影响粉芯密度,而后者主要影响粉芯电阻率。选择适当的二级颗粒粒径有助于同步提高密度和体电阻率,从而有效降低结构退磁场和涡流,促进粉芯磁性能的改善。本研究为颗粒级配在软磁粉芯领域的应用提供了可能的借鉴,为软磁粉芯性能的提高提供了新的思路。

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	张华
	李梦冉
	徐澎鹏
	李晶晶
	张学斌
	刘伟
	汪金芝
	苏海林

关键词: 软磁粉芯颗粒级配二级颗粒孔隙率磁性能

Abstract: Based on the particle grading theory, the second-level Fe-Si-Al particles of different sizes were mixed with the first-level Fe-Si-Al particles and third-level carbonyl-iron particles in a fixed proportion to prepare different graded powder cores. The effects of the second-level particle size on the density, the volume resistivity, the effective permeability, the DC-bias performance and the core loss of graded powder cores were studied. It was found that the size of the second-level particle influences the magnetic properties of powder core through two ways. One is changing the core's porosity, which directly determines the core's density. The other is adjusting the distribution of different particles, which mainly affects the core's resistivity. Suitable second-level particle size is helpful for increasing both the core's density and the volume resistivity. It decreases the structural demagnetizing field and the eddy current within the core and thus results in the improvement of the core's magnetic properties. This study provides a possible reference for the application of particle grading in the field of soft magnetic powder core and introduces new ideas for the improvement of the performance for soft magnetic powder core.

Key words: soft magnetic powder core particle grading second-level particle porosity magnetic property

出版日期: 2023-09-25 发布日期: 2023-09-18

ZTFLH:

TM272

基金资助: 宁波市科技创新2025重大专项(2020Z062);国家电网公司科技项目(5500-202118252A-0-0-00)

通讯作者: *苏海林,合肥工业大学材料科学与工程学院教授、博士研究生导师。2000年安徽大学物理系电子材料与元器件专业本科毕业,2003年安徽大学物理系材料物理与化学专业硕士毕业,2006年南京大学物理学系纳米磁学组凝聚态物理学专业博士毕业。目前主要从事磁性材料与器件的研究工作。发表论文80余篇,申请发明专利30余项。hailinsu@hfut.edu.cn

作者简介: 张华,2015年9月于合肥工业大学获得工学学士学位。现为合肥工业大学材料科学与工程学院硕士研究生,在苏海林教授的指导下进行研究。目前主要研究领域为软磁粉芯材料及器件。

引用本文:

张华, 李梦冉, 徐澎鹏, 李晶晶, 张学斌, 刘伟, 汪金芝, 苏海林. 二级颗粒粒径对颗粒级配软磁粉芯磁性能的影响[J]. 材料导报, 2023, 37(18): 22020065-5.
ZHANG Hua, LI Mengran, XU Pengpeng, LI Jingjing, ZHANG Xuebin, LIU Wei, WANG Jinzhi, SU Hailin. Effect of Second-level Particle Size on the Magnetic Properties of Particle Grading Soft Magnetic Powder Core. Materials Reports, 2023, 37(18): 22020065-5.

链接本文:

http://www.mater-rep.com/CN/10.11896/cldb.22020065 或 http://www.mater-rep.com/CN/Y2023/V37/I18/22020065

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