Properties of Fe-based Amorphous Cores

Grades and Typical Magnetic Properties of Fe-based Amorphous Tape Wound Cores

Grade

IA-L

IA-M

IA-H

μ_m

>2x10⁴

>20´10⁴

>25´10⁴

Bs(T)

1.5

1.5

1.5

B_r (T)

<0.5

0.5－1.0

1.2

Hc (A/m)

<4

<2.4

<4

Loss(50Hz, 1.4T) (w/kg)

<0.2

<0.13

<0.3

Loss(400Hz, 1.2T) (w/kg)

<1.8

<1.25

<2

Loss(8kHz, 1.0T) (w/kg)

<80

<60

<100

Variation of Iron Loss(-55－125°C)(%)

<15

<15

<15

Variation of Iron Loss(120°C/200hrs)(%)

<15

<15

<15

Typical Physical Properties of Fe-based Amorphous Tape Wound Cores (Grade 1K101)

Bs(T)

1.56

Hardness, Hv(kg/mm²)

960

Curie Temperature, Tc(^øC)

410

Density, d(gcm³)

7.18

Crystallization Temperature,Tx(^øC)

550

Electroresistance,r(mW-cm)

130

Saturation Magnetostriction,ls

27´10^-6

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