The loss of amorphous stator at high frequencies is lower than silicon steel.

Amorphous Stators

Efficient

Stable

Cost

The effective permeability of Fe-based amorphous alloy is obviously higher than that of silicon steel with high saturation magnetic induction strength and Bs value of 1.56T. The loss of Fe-based amorphous alloy at high frequencies is significantly lower than that of silicon steel. For motors with operating frequencies ranging from hundreds to thousands of Hz, Fe-based amorphous alloy is superior to silicon steel.

Characteristics

High saturation induction of 1.56 Tesla—Reducing component volume.
Low coercivity—Increasing component efficiency.
Low core loss—Reducing temperature rise in devices.
Variable permeability by different heat treatments—Satisfying various application requirements.
Excellent thermal stability—Having a highest service temperature of 130^oC.
Favorable for motor miniaturization

Physical Properties

Saturation Magnetization(Bs)	1.56T	Saturation Magnetostrictive Coefficient(λs)	<27×10^-6
Curie Temperature(Tc)	410℃	Density(d)	7.18g/cm³
Crystallization Temperature(Tx)	535℃	Resistivity(ρ)	130μΩ-cm
Hardness(Hv)	960	Continuous Operating Temperature Range	-55~130℃

Magnetic Properties

	Transverse Field Annealed	No Field Annealed	Longitudinal Field Annealed
Maximum Permeability μ_m	>2×10⁴	>20×10⁴	25×10⁴
Saturation Induction B_S	1.5 T	1.5 T	1.5 T
Remanence B_r	<0.5 T	1.0 T	1.2 T
Coercivity H_C	<4A/m	<2.4 A/m	<4A/m
Core loss (50 Hz, 1.4 T)	<0.2 W/kg	<0.13 W/kg	<0.3 W/kg
Core loss (400 Hz, 1.2 T)	<1.8 W/kg	<1.25 W/kg	<2 W/kg
Core loss (8 kHz, 1.0 T)	<80 W/kg	<60 W/kg	<100 W/kg
Variation In Loss Between -55^oC and 125^oC	<15%	<15%	<15%
Variation In Loss At 120^oC for 200 Hours	<15%	<15%	<15%