The enhanced magnetic properties of FeSiCr powder cores composited with carbonyl iron powder

2021 ◽  
Author(s):  
Mengji Gong ◽  
Yaqiang Dong ◽  
Jianjun Huang ◽  
Liang Chang ◽  
Yan Pan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Iron Powder ◽  
Carbonyl Iron ◽  
Carbonyl Iron Powder

scholarly journals FeSiCr Alloy Powder to Carbonyl Iron Powder Mixing Ratio Effects on the Magnetic Properties of the Iron-Based Alloy Powder Cores Prepared Using Screen Printing

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1034
Author(s):  
Hsing-I. Hsiang ◽  
Kai-H. Chuang ◽  
Wen-H. Lee
Keyword(s):  
Magnetic Properties ◽  
Iron Powder ◽  
Carbonyl Iron ◽  
Alloy Powder ◽  
Screen Printing ◽  
Network Formation ◽  
Core Loss ◽  
Mixing Ratio ◽  
Powder Mixing ◽  
Carbonyl Iron Powder

A screen printing process was used to substitute dry molding to solve the uneven compaction problem in the coil center column during molding in this study. FeSiCr alloy powders (FSC) with a large particle size were mixed with fine spherical carbonyl iron powder to increase the compaction density. FSC to carbonyl iron powder (CIP) mixing ratio effects on magnetic paste rheological behaviors and magnetic properties of the molding coil prepared using screen printing were investigated. A magnetic paste with the lowest viscosity can be obtained using 3C7F (30% CIP + 70% FSC) due to the small-sized CIP adsorbed onto the FSC surface. This process reduces the interlocked network formation resulting from the CIP. The toroidal core with 3C7F exhibited the highest relative density and highest inductance. The coils with pure CIP and higher CIP content exhibited the better DC superposition characteristic. The toroidal core loss increased rapidly as the FSC content was increased. A proper trade-off between the inductance, DC-bias superposition characteristic, and magnetic core loss can be reached by choosing a suitable powder mixing ratio.

Sol–gel method as a way of carbonyl iron powder surface modification for interaction improvement

2015 ◽  
Vol 226 ◽  
pp. 224-230 ◽  
Author(s):  
P. Małecki ◽  
K. Kolman ◽  
J. Pigłowski ◽  
J. Kaleta ◽  
J. Krzak
Keyword(s):  
Surface Modification ◽  
Iron Powder ◽  
Carbonyl Iron ◽  
Sol Gel ◽  
Powder Surface ◽  
Gel Method ◽  
Sol Gel Method ◽  
Carbonyl Iron Powder
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