Cores

Amorphous & Nano-Crystalline

◾  Amorphous Alloy

  • It lacks a crystal structure, which means it has no crystal defects. It exhibits high permeability and low magnetic hysteresis characteristics.
  • Due to its disordered atomic arrangement, it has high electrical resistance and low loss properties, even under high-frequency conditions.
  • It is suitable for applications in high-frequency range materials, control components, measurement components, and more.
  • Yuseung offers unique alloy compositions and specialized manufacturing techniques to provide high-quality amorphous powder materials.



Composition

A.D.

T.D.

Particle Size
Magnetic PropertiesPermeability
Core loss, Pcv (kW/m³)

(g/cc)

(g/cc)

(D50, ㎛)

Ms(emu/g)

Hc(Oe)
f = 100 kHz

1 MHz / 200G

Fe-Si-Cr-B-C
Alloy

2.5-3.5

3.5-4.5

18.0~20.0

140-1500.5-3.036.5511


1) Core Permeability(μ) = 60μ

2) Outer diameter = 27mm
3) Toroidal core : 1.65ton/cm² + CIP25% + Binder3%



◾  Property of Amorphous Alloy

Surface Morphology

 

Crystallinity

◾  Nano-Crystalline Alloy

  • Through heat treatment, it forms extremely fine crystalline structures, typically around 20 nanometers in size.
  • It exhibits higher permeability and lower magnetic hysteresis compared to amorphous materials, making it advantageous in high-frequency applications.
  • Yuseung employs specialized powder manufacturing techniques and unique heat treatment methods to meet customer requirements regarding particle size and insulation.



Composition

A.D.

T.D.

Particle Size
Magnetic PropertiesPermeability
Core loss, Pcv (kW/m³)

(g/cc)

(g/cc)

(D50, ㎛)

Ms(emu/g)

Hc(Oe)
f = 100 kHz

1 MHz / 200G

Fe-Si-Nb-B-Cu
Alloy

2.5-3.5

3.8-4.5

18.0-20.0

130-1400.4-1.039.8378


1) Core Permeability(μ) = 60μ

2) Outer diameter = 27mm
3) Toroidal core : 1.65ton/cm² + CIP25% + Binder3%



◾  Property of Nano-Crystalline Alloy

Surface Morphology

 

Crystallinity


Yuseung Co., LTD


Headquarters 34-1, Soto 4gil, Sangbuk-Myeon, Yangsan, Republic of Korea

Haman Factory 160 Hyunpo-ro, Gunbuk-myeon, Haman, Republic of Korea

Research Institute 808, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Republic of Korea

Tel +82 70-4002-8001

Fax +82 55-375-8858
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