Abstract
Problems of creating physical properties and magnetic and hysteresis characteristics for active hard-magnetic materials of the rotors of highspeed and ultra-highspeed hysteretic electromechanical energy converters are considered. The effect and importance of the mechanical activation of the initial powder medium, and the phase and structural changes that occur in the powder composition of hard-magnetic materials of an Fe–Cr–Co system during mechanical activation in different media with addition of surfactants, are investigated.
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