What differentiates the two families of powders and their application?
The first materials are compacted to net-shape and sintered to obtain optimal mechanical and magnetic properties. Since these materials are utilized in their sintered state and are essentially large pieces of ferrous materials, they are typically used in applications where high permeability values and low coercive force values are required and the presence of rapidly alternating magnetic fields are kept to minimum (DC applications). Ancorsteel Insulated powders are designed for electromagnetic applications requiring constant magnetic permeability and low core losses over a wider range of operating frequencies (AC applications). For this material, each powder particle is insulated from the each other prior to the compaction step. The insulation is made up of either a combination of an oxide coating with a thermoplastic coating or a single thermoplastic coating. The materials are not sintered following compaction resulting in a high resistivity component. Despite the fact that the materi
