A comparative study on the lamella effect and properties of atomized iron powder and reduced iron powder in Fe-based soft magnetic composites

被引：0
作者：
Yang, Zhenjia [1 ,3 ]
Luo, Zigui [1 ,3 ]
Jin, Qi [1 ,3 ]
Fan, Xi'an [1 ,2 ,3 ]
Wu, Zhaoyang [4 ]
Wang, Jian [5 ,6 ]
Li, Guangqiang [1 ,3 ]
机构：
[1] Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China
[2] Wuhan Univ Sci & Technol, Natl Prov Joint Engn Res Ctr High Temp Mat & Linin, Wuhan 430081, Peoples R China
[3] Wuhan Univ Sci & Technol, Key Lab Ferrous Met & Resources Utilizat, Minist Educ, Wuhan 430081, Peoples R China
[4] Anhui Univ Technol, Key Lab Met Emiss Reduct & Resources Recycling, Minist Educ, Maanshan 243002, Peoples R China
[5] Guangdong Acad Sci, Guangdong Inst Mat & Proc, Guangzhou 510650, Peoples R China
[6] Guangdong Acad Sci, Natl Engn Res Ctr Powder Met Titanium & Rare Met, Guangzhou 510650, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2025年 / 311卷
基金：
中国国家自然科学基金;
关键词：
Soft magnetic composites Atomized iron powder Reduced iron powder; Lamellar structure Magnetic properties; COMPLEX PERMEABILITY; LOSS SEPARATION; LOSSES;
D O I：
10.1016/j.mseb.2024.117844
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We prepared Fe soft magnetic composites (SMCs) with lamellar structure by using the flaky Iron powder, and studied the effects of types of iron powder on the microstructure and properties of Fe SMCs. The results show that the atomized iron powder and the reduced iron powder are deformed into flaky structure after ball milling, and these flaky iron powder have greater magnetic susceptibility and eddy current diameter perpendicular to the magnetic flux direction. In addition, compared with flaky gas atomized iron powder, the flaky reduced iron powder has large aspect ratio and lower coercivity. Therefore, the Fe SMCs with flaky reduced iron powder exhibit relatively high permeability (82) and low eddy current loss (0.033 W/kg at 50 kHz, 0.05 T), which shows the potential possibility of application at high frequency.
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页数：9
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