The “Center” of Permanent Magnet Motors – Permanent Magnets The development of permanent magnet motors is closely related to the development of permanent magnet materials. China is the first country in the world to discover the magnetic properties of permanent magnetic materials and apply them to practice. More than 2000 years ago, China made a [...]
What is SmFeN Magnet SmFeN magnetic material uses abundant rare-earth Sm element instead of expensive elements of Nd, Dy, Co, etc, and is the most cost-effective rare earth permanent magnetic material. Compared with the bonded neodymium magnet, the bonded SmFeN magnet has higher magnetic properties and lower prices. Moreover, curie temperature, corrosion resistance, and thermal [...]
Thermal Stability of Anisotropic Bonded Magnets Prepared by Additive Manufacturing Abstract In this research, anisotropic NdFeB + SmFeN hybrid and NdFeB bonded magnets are additively printed in a polyphenylene sulfide (PPS) polymer binder. Printed NdFeB + SmFeN PPS bonded magnets displayed excellent magnetic properties (Br [remanence] = 6.9 kG [0.69 T], Hcj [coercivity] = 8.3 [...]
New Measurement Technique Characterizes Permanent Magnets Permanent magnets are widely used for sensor and motor applications. Besides these, magnetic fields are also used for applications such as storage of information and fraud protection on documents. With the number of critical applications continuing to rise, developers and producers are increasingly forced to meet safety requirements, as [...]
Permanent Magnets in a Changing World Market There are several commercially available permanent magnets. In sequence of invention they are: alnico, ferrite, SmCo (samarium cobalt), NdFeB (neodymium iron boron, Neo), and SmFeN (samarium iron nitride). The last three types are considered “rare earth” magnets because they contain one or more rare earth elements. In terms [...]
Neodymium Magnet Guide Neodymium Information Collectively known as Rare Earth magnets, Neodymium Iron Boron (NdFeB) and Samarium Cobalt (SmCo) magnets are alloys of the Lanthanide group of elements. Rare Earth magnets are the most advanced commercialized permanent magnet materials today. NdFeB magnets are available in a number of different grades that span a wide range [...]
Magnetic Core Characteristics and Applications Magnetic components have been used in several power electronic devices for decades. They are used in a wide range of applications. In order to implement the designed magnetic components, it is essential to have a good understanding of magnetic materials and associated technology. In the previous article, we learned about [...]
Grade of Samarium Cobalt Magnet, Grade of SmCo Magnet Material Grade Remanence Coercive Force Intrinsic Coercive Force Max. Energy Max Working Temp. abbr Br HcB HcJ (BH) max Tw. unit kGs kA/m KOe kA/m KOe KJ/m3 MGOe ℃ Sm1Co5 YX-16 8.1-8.5 620-660 7.8-8.3 1194-1830 15-23 110-127 14-16 250 Sm1Co5 YX-18 8.5-9.0 660-700 8.3-8.8 1194-1830 15-23 [...]
How Does Temperature Affect Magnetism of Magnets? - Magnets are used in daily life. They’re used in manufacturing, automobiles, security systems and electronics devices. Even the earth itself is a magnet. How does temperature affect the magnetism of magnets? To understand temperature effects, we need to look at the atomic structure of the elements that [...]
What Magnets are Stronger than Neodymium Magnet? Rare earth magnets are the strongest type of the permanent magnets manufactured and are integral to the high tech industry, especially in the clean energies, like the wind turbine generators and the electric vehicle motors. China extracts and it produces over 95% of the world’s rare earth minerals, [...]
Select Magnet Materials from MPCO Magnets ( Neodymium, NdFeB Magnets, SmCo, Alnico, Ceramic Magnets and others ) When choosing a magnet material to be incorporated into your specific application, their properties need to be identified and compared to correctly evaluate their functional workability and economic feasibility. Design engineers should consider the magnetic requirement, physical requirement, [...]
How are Sintered Samarium Cobalt Magnets Made? Developed in the early 1960’s, samarium Cobalt magnets have been a highly preferred application choice as a type of rare earth permanent magnet material. Samarium cobalt magnet compositions are primarily samarium and cobalt with small amounts of iron, copper, zirconium depending on the material grade. The powerful sintered [...]