AlNiCo alloys basically consist of aluminum, nickel, cobalt, copper, iron and titanium. In some grades cobalt and/or titanium can be omitted. Also these alloys may contain additions of silicon, columbium, zirconium or other elements which enhance heat treatment response of one of the magnetic characteristics. AlNiCo alloys are formed by casting or powder metallurgical processes. Characteristics
AlNiCo magnets are very good at temperature properties. Its temperature coefficient is very low, so the change of magnetic properties is low under high temperature. The maximum working temperature can be as high as 400 °C
The coercive force of AlNiCo magnets is also very low, so it can be easily effected by reverse magnetic force and impact of iron. This means that they can be easily demagnetized by external influences. For this reason, AlNiCo magnets should not be stored and packed with the same poles opposing to each other.
In open circuit, the ration of length/diameter (L/D) should be at least 4:1. With shorter length, AlNiCo magnets are unstable in open circuit.
AlNiCo magnets have good corrosion resistance characteristic. No coating is needed for surface protection.
Applications
Instruments
Meters
Mobile Phones
Odometers
AlNiCo alloys basically consist of aluminum, nickel, cobalt, copper, iron and titanium. In some grades cobalt and/or titanium can be omitted. Also these alloys may contain additions of silicon, columbium, zirconium or other elements which enhance heat treatment response of one of the magnetic characteristics. AlNiCo alloys are formed by casting or powder metallurgical processes.
Characteristics
- AlNiCo magnets are very good at temperature properties. Its temperature coefficient is very low, so the change of magnetic properties is low under high temperature. The maximum working temperature can be as high as 400 °C
- The coercive force of AlNiCo magnets is also very low, so it can be easily effected by reverse magnetic force and impact of iron. This means that they can be easily demagnetized by external influences. For this reason, AlNiCo magnets should not be stored and packed with the same poles opposing to each other.
- In open circuit, the ration of length/diameter (L/D) should be at least 4:1. With shorter length, AlNiCo magnets are unstable in open circuit.
- AlNiCo magnets have good corrosion resistance characteristic. No coating is needed for surface protection.
Applications
- Instruments
- Meters
- Mobile Phones
- Odometers
