Ceramic permanent magnet

Key Advantages:

(1). Does not rust
(2). Cheap but strong
(3). It is hard to demagnetize
(4). Magnetized with multiple poles is acceptable
(5). Not necessary for surface treatment

Quick Leads:

(1). Density-4.95 g/cm?
(2).Manufacturing process- sintering (most common), injection molding, extruding or calendaring
(3).Various shapes- discs, bars, rings, blocks, arc segments, cylinders, etc
Wide range of grades- from 0103 to 0404. (First 2 digits represent BH.max, and second two digits represent Intrinsic Coercivity, Hci.)
(4).Saturation magnetizing field required - about 10kOe
(5). The energy product of Flexible magnets is, however, much lower than that of fully dense, sintered Ferrite magnets