Effect of Fe-Mn addition on microstructure and magnetic properties of NdFeB magnetic powders

被引：5
|
作者：
Kurniawan, C. [1 ]
Purba, A. S. [2 ]
Setiadi, E. A. [1 ]
Simbolon, S. [1 ]
Warman, A. [2 ]
Sebayang, P. [1 ]
机构：
[1] Indonesian Inst Sci LIPI, Res Ctr Phys, Tangerang Selatan 15314, Banten, Indonesia
[2] Univ Sumatera Utara, Dept Phys, Jl Bioteknol 1 USU, Medan 20155, Sumatera Utara, Indonesia
来源：
3RD INTERNATIONAL SYMPOSIUM ON FRONTIER OF APPLIED PHYSICS (ISFAP 2017) | 2018年 / 985卷
关键词：
NANOCOMPOSITE; COERCIVITY; REVERSAL;
D O I：
10.1088/1742-6596/985/1/012044
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this paper, the effect of Fe-Mn alloy addition on microstructures and magnetic properties of NdFeB magnetic powders was investigated. Varied Fe-Mn compositions of 1, 5, and 10 wt% were mixed with commercial NdFeB type MQA powders for 15 minutes using shaker mill. The characterizations were performed by powder density, PSA, XRD, SEM, and VSM. The Fe-Mn addition increased the powder density of NdFeB/Fe-Mn powders. On the other side, particle size distribution slightly decreased as the Fe-Mn composition increases. Magnetic properties of NdFeB/Fe-Mn powders changed with the increasing of Fe-Mn content. SEM analysis showed the particle size of NdFeB/Fe-Mn powder was smaller as the Fe-Mn composition increases. It showed that NdFeB/Fe-Mn particles have different size and shape for NdFeB and Fe-Mn particles separately. The optimum magnetic properties of NdFeB/Fe-Mn powder was achieved on the 5 wt% Fe-Mn composition with remanence M-r = 49.45 emu/g, coercivity H-c = 2.201 kOe, and energy product, BHmax = 2.15 MGOe.
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页数：6
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