|
|
|
| Effect of sphericity on soft magnetic properties of FeSiCr alloy powders |
| Lü Shiya1，2.，MAHongqiu1，2.，KUANG Chunjiang3.，MENG Lingbing1，2.，ZHAO Gang1，2.，CUI Lei1，2. |
| （1.Advanced Technology (Bazhou) Special Powder Co., Ltd, Bazhou 065701, China； 2.Special Powder Atomi‐
zation Technology Innovation Center of Hebei Province, Bazhou 065701, China； 3. Advanced Technology &
Materials Co., Ltd., Beijing 100081, China） |
|
|
|
|
Abstract The high spherical FeSiCr soft magnetic alloy powder was prepared by the improved combined atomiza‐
tion technology, and the D50 is 10 μm、12.5 μm、15 μm and 21 μm sample. At the same time, FeSiCr soft magnetic
alloy powder with the same D50 particle size was prepared by conventional combined atomization technology as the
control group. The morphologies of the two process powders were measured and observed by means of specific sur‐
face and pore size analyzer and scanning electron microscope, and the magnetic properties of FeSiCr soft magnetic
powder were characterized by soft magnetic AC equipment. The results show that the morphology of the new com‐
bined atomized FeSiCr alloy powder tends to be spherical obviously, and the specific surface area of the powder
with the same particle size is significantly lower than that of the conventional combined atomized powder. Both at‐
omization processes produce bcc structure α-Fe(Cr, Si) solid solution powder. Effective permeability of new com‐
bined atomized powder with the same particle size μe is lower than the conventional combined atomization powder,
while the DC bias characteristic and magnetic loss are better than the conventional atomization, and the Pcv of X10
at 100 kHz and 50 mT is only 601.8 mW/cm3.
|
|
Received: 16 February 2023
|
|
|
|
|
|
|
2023, Vol. 33 
