Many people want to understand how to use them, so we wrote this guide. Use where: High power is required from […], Samarium-Cobalt magnets in steelpot with borehole / SmCo pot magnets with hole, SmCo Pot Magnets with Cylindrical Borehole, Samarium-Cobalt Cup Magnet w/ Through Hole Mounting SmCo Pot Magnets Feature: *High resistance to demagnetization *High energy (magnetic strength is strong for its size) *Good temperature stability *Expensive material (cobalt is market price sensitive) * Resistance to […]Samarium Cobalt vs Neodymium Magnets, Lamination Rare Earth Magnet for Motors, wedge shaped Lamination magnet series, segment laminated neodymium & SmCo magnets, Magnet segmentation technology high-resistivity magnet China manufacturer Part No. They are both Rare Earth Magnets. Samarium Cobalt magnets are similar in many respects to Neodymium magnets. (Br) stands for “Remanence” and you can learn more about Magnetic Remanence on our website here. Quickie Neodymium Magnets Vs. Samarium Cobalt . The crystal structure of SmCo is hexagonal, and NdFeB is tetragonal. The rare earth elements are typically found together in the same mineral deposits, and these deposits are plentiful. If magnets are in an environment where the forces of demagnetization are strong -such as in opposing magnetic fields- at high temperature- or both, they can begin to lose their magnetic field. How to Use Neodymium Disc Magnets Domestically. Many clients require grades YXG28, YXG30, SmCo28, SmCo24,SmCo30, etc. SmCo flux output varies much less with respect to temperature, meaning the device performance can truly be optimized. But their strength decreases rapidly as the temperature rises. SmCo Magnets. Neodymium magnets are well known for their exceptional power and versatility. Neodymium, ceramic, samarium cobalt magnets can be custom-made in various shapes, sizes and magnetization orientations or directions. NdFeB magnets are about 65% iron (iron is ferromagnetic as mentioned above). Just be sure to consult with one of our coatings engineers first to be sure the coating matches the application. It is very rare for SmCo magnets to require protective plating (a notable exception is the use of nickel plating for soldering the magnets to … Samarium Cobalt and Neodymium Iron Boron both make very strong magnets. Permanent magnet machines are currently the leading choice for high performance automotive applications… NdFeB magnets also have the … Neodymium magnets can replace SmCo magnets in most cases, especially where the operating temperature is less than 80 degree Centigrade, though the temperature stability of neodymium magnets is not as good as SmCo magnets. Some of the differences between neodymium rare earth magnets and samarium cobalt rare earth magnets include: 1. SmCo and NdFeB magnets also have important similarities. While their magnetic attraction is very strong, they are by nature very brittle and corrosive, requiring them to be coated or plated with nickel or a like substance that will strengthen the magnet against chipping and breakage. A strengths and weaknesses comparison of magnetic materials including neodymium, ferrite, samarium cobalt, Alnico and flexible magnets. SmCo. If you are considering an application in a challenging environment, you As with many engineering materials, there are some finer details to consider in any trade study between two materials. They are called are rare earths, because Samarium and Neodymium are both found in the Lanthanide series of metals on the Periodic Table, so the properties and crystal structures of these magnets are very similar to each other. Basis Magnetic Property Neodymium vs. SmCo Magnets – Vehicle electrification is a growing market for rare earth magnets. Page. Deciding what material to use in your application can be challenging, especially when it comes to permanent magnet materials such as samarium cobalt and neodymium iron boron. Yet SmCo gets coated for a number of applications for improved cleanliness and resistance to chipping, since SmCo magnets are more brittle than NdFeB magnets. Samarium–Cobalt Magnet is strong permanent rare earth magnet made of an alloy of samarium, cobalt, Fe, Cu, Pr and Zr. They are both very strong magnets with very high BH Max (Maximum Energy Product) and high Coercivity (resistance to demagnetization) and they are both commercially important on a large and growing scale. Many readers also like our post on Neodymium vs Ferrite Magnets, please search it in our HSMAG website. Tagged cobalt magnets, neodymium magnet, Samarium cobalt, samarium cobalt magnets vs neodymium. Samarium-cobalt offers a balance of strength and temperature resistance. Neodymium vs. SmCo Magnets used for Hybrid Electric Vehicles Permanent Magnets Dominate EV. Temperature stability leads to stable output performance from a four pole machine. Samarium cobalt magnets have a strong resistance to corrosion and oxidation, making them an excellent choice for difficult environments. These crystal structures tightly concentrate the magnetic field in the north-south direction. Post was not sent - check your email addresses! This material has similar properties as the Samarium Cobalt except that it is more easily oxidized and generally doesn't have the same temperature resistance. NdFeB typically has about 1.5% cobalt added to improve corrosion resistance a little bit, but that is a very small percentage of cobalt compared to what’s in SmCo magnets. There are basically two formulations for rare earth magnets: samarium cobalt and neodymium alloys. Two Main Types of Rare-Earth Magnets. These crystal structures tightly concentrate the magnetic field in the north-south direction. SmCo Magnets are second generation of rare earth permanent magnets, it is made of samarium, cobalt and other rare earth metal.China Rare Earth Magnet Limited manufactures SmCo5 and Sm2Co17 magnets in various shapes. Applications in such industries are often in challenging environments, where Samarium Cobalt excels. Alternatively, more costly samarium-cobalt magnets can be used. Dura can help optimize performance and cost with SmCo magnets in grades from 16 to 32 MGOe and temperatures up to 350°C/662°F. Deciding what material to use in your application can be challenging, especially when it comes to permanent magnet materials such as samarium cobalt and neodymium iron boron. By this measure, SmCo magnets greatly excel over NdFeB magnets –especially at elevated temperatures. temperatures, and SmCo outperforms at the higher temperatures. Samarium cobalt magnets certainly come into their own at high operating temperatures and will begin to outperform special high-temperature neodymium magnets from 150℃. test. If you need more information, and as you generate specific questions about your applications, feel free to contact us. Neodymium magnets usually contain 29-32.5% of rare earth neodymium, 63.95-68.65% of iron, 1.1-1.2% of boron, 0.6-1.2% of dysprosium, 0.3-0.5% of niobium, 0.3-0.5% of aluminum and 0.05-0.15% of copper while samarium cobalt magnets typically contain 23-28% of rare-earth metallic samarium, 48-52% of rare-earth metallic cobalt, 14-17% of metallic iron, 5-7% of metallic copper, and a … The Temperature Coefficient of SmCo is around 0.20-0.30 %/degree C. But the Temperature Coefficient of NdFeB is 0.45-0.60 %/degree C. The two things that cause a magnet to demagnetize are high temperatures and high opposing magnetic fields. 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