Aluminum Nickel Cobalt Magnets AlNiCo
AlNiCo magnets are made of Aluminium, Nickel, Cobalt en Ferro. Most AlNiCo magnets are cast, whereby the alloy is cast in a sand form in liquid state at very high temperatures. This can take place in complex forms, such as for example the form of a horseshoe.
Some versions are pressed and sintered. The magnetic characteristics are then somewhat lower, but the magnetic characteristics are then actually better. To prevent demagnetisation the correct length/diameter proportion must be maintained.
- Cast or sintered material from aluminium-nickel-cobalt.
- Temperature range: -270 °C to +450 °C.
- Low resistance to demagnetization.
- Machine with diamond or carborundum tools.
| type | residual magnetism Br (mT) |
coercive field strength HcB (kA/m) |
intr. coercive field strength HcJ (kA/m) |
energy product BHmax (kJ/m3) |
max. operating temperature | reversible temp. coeff. |
| AlNiCo | typ. | typ. | typ. | typ. | oC | von Br (%/oC) |
| AlNiCo S100 | 520 | 40 | 43 | 8 | 450 | -0,02 |
| AlNiCo C120 | 700 | 40 | 42 | 12 | 450 | -0,02 |
| AlNiCo C160 | 730 | 43 | 45 | 12,6 | 450 | -0,02 |
| AlNiCo S260 | 650 | 130 | 136 | 33 | 500 | -0,02 |
| AlNiCo S450 | 840 | 110 | 118 | 40 | 500 | -0,02 |
| AlNiCo C500 | 1150 | 48 | 50 | 36 | 450 | -0,02 |
| AlNiCo C700 | 1360 | 57 | 60 | 54 | 450 | -0,02 |
Choose L / D ratio if possible> 5; do not position the magnets in repulsive order; if possible magnetise within the system.
Density: 8.3 g/cm3
Tags: Magnetic Materials