Description of Nanocrystalline Ribbons
Nanocrystalline ribbons consist of iron (Fe), silicon (Si), boron (B), copper (Cu), niobium (Nb) and other elements. They are manufactured using a specialised annealing process at a cooling rate of 1×10⁻⁶ °C. Nanocrystalline ribbons are employed as direct alternatives to cobalt‐based amorphous alloys, Permalloy and ferrite, thereby enabling the production of electronic devices with compact dimensions, reduced mass and increased operational efficiency.

Specifications for Nanocrystalline Ribbons
Curie Temperature (°C)
|
~570
|
Crystallisation Temperature (°C)
|
~530
|
Density (g/cm³)
|
7.20
|
Specific Resistivity (µΩ·cm)
|
120
|
Saturation Induction (T)
|
1.25
|
Saturation Magnetostriction
|
<1×10⁻⁶
|
Material
|
Composition by Weight (%)
|
Initial Relative Permeability µi
|
Remanence Ratio (%)
|
Coercive Field Strength (A/m)
|
Saturation Induction (T)
|
Resistivity (µΩ·cm)
|
Nanocrystalline Ribbons (Fe-based)
|
LM
|
FeCuNbSiB
|
30 000–60 000
|
85–95
|
<1.5
|
1.25
|
120
|
NM
|
50 000–100 000
|
45–65
|
TM
|
30 000–150 000
|
5–20
|
Fe-based Amorphous
|
FeSiB
|
~5 000
|
~85
|
<2.5
|
1.56
|
120
|
Co-based Amorphous
|
>50 % Co
|
~300 000
|
>90
|
<1.5
|
0.5–0.9
|
140
|
Iron
|
99.8 Fe
|
150
|
/
|
80
|
2.14
|
10
|
Non-oriented Si Shell
|
SiFe
|
270
|
/
|
60
|
2.01
|
47
|
Oriented Si Layer
|
SiFe
|
1 400
|
/
|
7
|
2.01
|
50
|
Applications of Nanocrystalline Ribbons
Nanocrystalline ribbons are employed in the following applications:
- Renewable Energy
- Transport
- Electrical Powder
- Aerospace
- Consumer Electronics
- Healthcare