Rare-earth Sintered SmCo Magnet
The sintered SmCo (Samarium Cobalt) magnets are a type of rare-earth permanent magnet produced in the sintering process. These materials are breakable, so they need to drill or chip to enhance outstanding magnetic properties.
With maximum energy of 30 MGOe, the sintered SmCo magnets can withstand high temperatures, curie temperatures, and minimum temperature induction coefficients. They also have excellent resistance to corrosion, which makes them ideal for machines requiring high magnetic and strict working conditions.
Dailymag sintered SmCo magnets are available in arcs, blocks, discs, and many custom shapes. Most of them do not require any coating as they are corrosion-resistant. But if you really need any coatings for a particular use, we have available epoxy, tin, nickel, zinc, Teflon, etc.
Two Series of Sintered SmCo Magnet
Dailymag sintered SmCo magnet is identified as SmCo 1:5 and SmCo 2:17. The SmCo 1:5 composition means one Samarium atom and five Cobalt atoms. While the SmCo 2:17 means two Samarium atoms and 13-17 Cobalt atoms. These two compositions both provide very high magnetic characteristics and thermal stability.
Wide Range of Applications
- Computer Hard Drives
- Sensors
- AC Servo Motors
- Watches
- Bias Magnets
- Actuators
- Aerospace
- Printers
- Automobiles
- Ultrasonic Transducers
- Electronic Instrumentations
- Traveling Wave Tubes
Characteristics
| BH | Hcj | BrTc | Working Temperature | Anti-Causticity | |
| SmCo 1:5 | Max. 25 | Max. 25 | Min. 0.05 | Min.200 Max. 250
|
Good |
| SmCo 2:17 | Max. 30 | Max. 30 | Min. 0.03 | Min. 300 Max 350 | Good |
Physical Properties
| Density | Max. 8.4 g/cm3 |
| Curie Temperature | Max. 850 ºC |
| Recoil Permeability | Max. 1.10 |
| Vickers Hardness | Max. 600MPa |
| Bending Strength | Max. 180MPa |
| Compressive Strength | Max. 1000MPa |
| Tensile Strength | Max. 40MPa |
| Resistivity | Max. 0.9 μΩ·m |
| Thermal Expansivity Magnetization | Max. 9 10-6/ºC and Max. 13 10-6/ºC |
