Composition of Samarium Cobalt Permanent Magnets
Samarium cobalt permanent magnet is a rare earth magnet, mainly composed of metal samarium (Sm), metal cobalt (Co), copper (Cu), iron (Fe), zirconium (Zr) and other elements, from the structure is divided into 1:5 type and 2:17 type two, belong to the first generation and the second generation of rare earth permanent magnet materials. Samarium cobalt permanent magnet has excellent magnetic properties (high remanence, high coercivity and high magnetic energy product), very low temperature coefficient, high service temperature and strong corrosion resistance, is the best temperature resistant permanent magnet material, widely used in microwave devices, electron beam devices, high-power/high-speed motors, sensors, magnetic components and other industries.
Function of 2:17 samarium-cobalt magnet
One of the most popular samarium-cobalt magnets is the 2:17 samarium-cobalt magnet, a series of magnets known for their superior magnetic properties, making them the first choice for applications requiring high magnetic strength and stability.
From the performance characteristics, 2:17 samarium-cobalt permanent magnets can be divided into high-performance series, high stability series (low temperature coefficient) and high temperature resistance series. The unique combination of high magnetic energy density, temperature stability and corrosion resistance makes samarium-cobalt permanent magnets ideal for a variety of applications, including electric motors, sensors, magnetic couplings and magnetic separators.
The maximum magnetic energy product range of each grade is between 20-35MGOe, and the maximum operating temperature is 500℃. Samarium-cobalt permanent magnets have a unique combination of low temperature coefficient and good corrosion resistance, high magnetic energy density, temperature stability and corrosion resistance, making samarium-cobalt permanent magnets ideal for a wide range of applications, including electric motors, sensors, magnetic couplings and magnetic separators. The magnetic properties of Ndfeb magnets at high temperatures exceed NdFeb magnets, so they are widely used in aerospace, military fields, high temperature motors, automotive sensors, various magnetic drives, magnetic pumps and microwave devices. 2:17 type samarium cobalt magnets are extremely brittle, not easy to process into complex shapes or particularly thin sheets and thin-walled rings, in addition, it is easy to cause small corners in the production process, generally as long as it does not affect the magnetic properties or functions, can be regarded as qualified products.
In summary, samarium cobalt permanent magnets, especially the high magnetic energy density series Sm2Co17 magnets, are highly valued for their excellent magnetic properties and stability. Their ability to withstand high temperatures and harsh environments makes them the first choice for demanding applications across industries. As technology continues to advance, the demand for samarium-cobalt permanent magnets is expected to grow, further cementing their position as a key component for modern industrial and commercial applications.
Post time: Jul-29-2024
