These materials span a range of properties that accommodate a wide variety of application requirements. Alnico magnets (general composition Al-Ni-Co) were commercialized in the 1930s and are still extensively used today.A special form of Ferrite magnet is "Flexible" material, made by bonding Ferrite powder in a flexible binder. Ferrite, also known as ceramic magnets (general composition BaFe 2O 3 or SrFe 2O 3) have been commercialized since the 1950s and continue to be extensively used today due to their low cost.2:17 types, with higher H ci values, offer greater inherent stability than the 1:5 types. Samarium Cobalt is manufactured in two compositions: Sm 1Co 5 and Sm 2Co 17 - often referred to as the SmCo 1:5 or SmCo 2:17 types.At room temperatures, NdFeB magnets exhibit the highest properties of all magnet materials. Neodymium Iron Boron (general composition Nd 2Fe 14B, often abbreviated to NdFeB) is the most recent commercial addition to the family of modern magnet materials.NdFeB and SmCo are collectively known as rare-earth magnets because they are both composed of materials from the Rare Earth group of elements. Within each class is a family of grades with their own magnetic properties. There are four classes of modern commercialized magnets, each based on their material composition. The design & engineering team at Integrated Magnetics will be happy to assist you further in your applications, contact us or send us a request for quote and let us know how we can help. The following sections will provide a brief insight into the design and application of technical permanent magnets. Special Effects - such as magneto resistance, Hall effect devices, and magnetic resonance.Example applications are eddy current heaters. Mechanical to Heat - the conversion of motion to heat energy.Example applications are motors, meters, relays, actuators, loudspeakers, and charged particle deflection, traveling wave tubes, ion pumps, and cyclotrons. Electrical to Mechanical - the conversion of electrical energy to motion.Example applications are generators, magnetos, and microphones. Mechanical to Electrical - the conversion of motion to electrical energy.Examples of applications that utilize this are magnetic separators, holding devices, magnetic torque drivers and magnetic bearings.
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