Warm compaction can also be utilized to introduce a new class of PM materials for alternating current (AC) magnetic applications.
Using iron powder and a high-strength polymer as a binder (0.6–0.75 wt%), complex-shaped parts with a density of
about 7.2 g cm–3can be produced by warm compaction without the need for sintering .
Manufacturing flexibility and a variety of material options with unique magnetic performance have attracted attention for producing parts for automotive ignition coils and stators for high-speed electric motors.