METHOD OF PRODUCING POWDER CORE FOR ELECTROMAGNETIC DEVICE

摘要

Ferromagnetic glassy metal powder is compacted with static pressure of 69 to 690 MPa at a temperature in the vicinity of the glass transition temperature and below the crystallization temperature thereof to form a consolidated, magnetic glassy metal alloy body. The resulting compacts can be annealed to enhance ferromagnetic properties. Consolidated bodies exhibit low core loss and permeabilities which remain constant over a wide frequency range.