Method of making a coated magnetic powder and a compressed magnetic powder core.

摘要

A compressed magnetic powder core comprising a compressed body of a magnetic powder and electrically insulating material separating the magnetic powder particles, characterized in that the magnetic powder has an average particle size of 10 to 300 mu m, and the insulating material covers each of the particles of said magnetic powder and comprises a continuous insulating film having a thickness of 10 mu m or less and comprising a metal alkoxide or a decomposition product thereof. <IMAGE>