Amorphous And Nano-alloy-coilcore.com

Amorphous and Nano-alloy

September 02. 2022

These ribbons are intended for applications in core of r.f. pulse transformer, in chokes, magnetic heads, magnetic screens and other electromagnetic devices instead of electrical steels, permalloys and ferrites, as transducers for antitheft devices and heating elements.

The manufacturing technology for measuring ribbons is developed by using of melt quenching(“spinning”). These ribbons have the following dimensions:

The range of nominal thickness 18~25μm with tolerance±(2~3)μm per one roll;

The range of the nominal width from 0.7 to 25.0mm (not more than 25.0mm), with tolerance(0.1~.2)mm.

The use of developed materials in products allows to improve their technical parameters, mass and dimension characteristics, also technical and economic indices during the fabrication of these products. The mst profitable field of application: magnetic cores and transformers S2m, S0, Up0 for ISDN system.

The major properites of Co-based and nano alloys AMAG after suitable thermomagnetic treatment.

Alloy Properties	AMAG	AMAG	AMAG	AMAG	AMAG	AMAG	AMAG	AMAG
Alloy Properties	200(Nano)	186	183	180	179	172	171	170
Induction B₁₀, T	1.2	0.90	0.75	0.68	0.66	0.60	0.58	0.55
Coercive force H_c, Oe	0.015	0.025	0.015	0.003	0.003	0.003	0.003	0.002
Permeability μ, at 10KHz	≥30000	2200	10000	35000	50000	70000	80000	100000
Permeability μ, at 1MHz	≥2500	1800	2000	3000	3000	3000	3200	3500
Max. permeability,μmax, at 10³	600	1000	500	1000	800	1000	1000	1000
Specific losses P_0.2, W/Kg at 10KHz	1-1.5	1.5-2	1.5-2	1-1.5	1-1.5	0.5-1	0.5-1	0.5-1
Specific losses P_0.2,W/Kg at 100KHz	30-40	45-55	30-40	20-30	20-30	20-25	20-25	20-25
Crystallization temperature, ℃	530	470	525	505	510	520	525	530
Curie temperature, ℃	570	430	350	275	265	235	225	200
Density, g/cm³	7.3	7.7	7.7	7.7	7.7	7.7	7.7	7.7
Linear hysteresis loop squareness ratio, not more than	0.1	0.03	0.05	0.05	0.05	0.1	0.15	0.2
Square hysteresis loop squareness ratio, not more than	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
Saturation magnettostriction, 10^-7	+20	+0.5	+10	+1	+2	-1	-1	+1

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