To enhance a ceramic magnet’s magnetic performance, the pressed ferrite compound may be oriented by a magnetic field during the sintering process. This orientation induces a preferred direction of magnetization within the magnet, significantly increased its magnetic performance in that direction. Consequently, ceramic magnets are available in both oriented (anisotropic) and non-oriented (isotropic) grades. Because of its lower magnetic properties, the isotropic grade of ferrite, ceramic 1, is typically utilized where complex magnetization patterns are required.
Ceramic magnets are inherently brittle and it is highly recommended that they NOT be utilized as structural elements in any application. The dimensional repeatability of as pressed components is difficult to control, consequently, components requiring tight tolerances necessitate secondary grinding operations to assure meeting drawing dimensional specifications.