Permanent Magnet Materials Permanent magnet lodestones contain magnetite, a hard, crystalline iron ferrite mineral that derives its magnetism from the effect the earth's magnetic field has on it. Various steel alloys can also be magnetized. The first big step in developing more effective permanent magnet materials came in the 1930s with the development of Alnico [...]
Sintered Ferrite magnet (Ceramic Magnets, Hard Ferrite Magnet) were developed in the 1960's as a low cost alternative to metallic magnets. Even though they exhibit low energy (compared with other permanent magnet materials) and are relatively brittle and hard, Sintered Ferrite magnet (ceramic magnets, Hard ferrite magnet) have won wide acceptance due to their good [...]
Magnetic Extrusion Material: • Strontium ferrite in thermo-plastic binder. • Max operating temperature 176˚F • Forms a strong bond when paired with itself. • Magnetic on 1 face. Description of Magnetic ExtrusionS The magnetic extrusion is a strontium ferrite magnetic powder within a thermo-plastic binder that is extruded through a die to create a specific [...]