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Formula: Ni 77/Fe 14/Cu 5/Mo 4
Form: Disk
Material: Nickel/Iron/Molybdenum (MuMetal)
Commodity: Alloys
Magnetic Shielding Alloy Disk (Ni77/Fe14/Cu5/Mo4) exhibits exceptionally high magnetic permeability and low coercivity, enabling it to provide effective attenuation of magnetic fields in demanding environments. The synergistic combination of nickel, iron, copper, and molybdenum enhances electrical resistivity, mechanical stability, and shielding efficiency, particularly after annealing treatments that promote local atomic ordering. This alloy disk is widely employed in aerospace, medical imaging, and precision electronics, where suppression of stray magnetic interference is essential. Specific uses include shielding components in MRI scanners, protective layers in satellite instrumentation, and stability enhancers for quantum measurement devices. Its importance in research lies in advancing the development of soft magnetic alloys tailored for both high-frequency and ultra-low-temperature shielding applications. Magnetic Shielding Alloy Disk (Ni77/Fe14/Cu5/Mo4) thus serves as a critical enabler for cutting-edge technologies, ensuring reliable performance and accuracy in scientific and industrial systems.
Health hazard/Hazardous to the ozone layer
Serious health hazard
Tolerances
Disc
| Thickness | >0.05mm | ±10% |
|---|---|---|
| Thickness | <0.01mm | ±25% |
| Thickness | 0.01mm - 0.05mm | ±15% |
Material Properties for Alloys
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Brinell | 105-290 |
| Modulus of elasticity( GPa ) | 190-221 |
| Izod impact strength( J m⁻¹ ) | 42-100 |
| Tensile strength( MPa ) | 530-900 |
Magnetic Properties
| Element | Value |
|---|---|
| Initial permeability | 60000 |
| Maximum permeability | 240000 |
| Coercivity (Hc)( A m⁻¹ ) | 1 |
| Curie temperature( C ) | 380 |
| Remanence from saturation (Brem)( T ) | 0.37 |
| Saturation Induction( T ) | 0.77 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 55-62 |
Physical Properties
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 8.8 |
Thermal Properties
| Element | Value |
|---|---|
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 30-35@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 13@20-100°C |
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