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Amorphous and Nano-alloy
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
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 Hc, 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 P0.2, 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 P0.2,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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