Research on Stator Core with Crushed pieces of Nanocrystalline Soft Magnetic Alloy

Abstract

NANOMET is one of the several nanocrystalline soft magnetic alloys (1). The authors already reported about the prototype motor with NANOMET stator cores (2). In this paper, the authors reported that NANOMET core motor has low iron loss characteristics which cannot be achieved with 35A360 core motor, while maintaining the torque density comparable to that of 35A360 core motor. In order to reduce the mass production cost of the currently expensive NANOMET stator cores and promote its practical application, we have devised molding of crushed NANOMET into a stator core. This paper describes about crushed NANOMET toroidal core, and presents the evaluation results of the iron loss characteristics.