Electric current-assisted sintering (ECAS) technologies are highly promising for processing of NdFeB magnets. Due to the combination direct Joule heating and application external load, even powders, whose particle size distribution morphology not optimum conventional powder like melt-spun powders or magnet scrap, can be easily sintered high densities. A systematic study is done demonstrate pote...

We have developed the 2.0T permanent magnetic circuit for NMR/MRI (figure1). In the previous study, the maximum field strength of permanent magnets for MRI was 1.0T [1, 3]. With using NdFeB magnetic materials and a special magnetic circuit design, it has been achieved that the magnetic field strength of 2.03 Tesla, H center frequency of 86.3MHz, air gap of 60 mm, 10 ppm-homogeneous volume of 30...

Abstract A non-resonant piezoelectric sensor for measuring power-frequency (50 Hz or 60 Hz) electric currents is proposed to be applied in power systems. The device consists of a magnetic circuit, two plates, and fixed plates. circuit made up three NdFeB magnets permalloy yokes. high sensitivity the attributed field concentration induced shear stresses. prototype has been fabricated feasibility...

Cogging torque reduction of axial flux permanent magnet brushless dc (PMBLDC) motor is an important issue which demands attention of machine designers during design process. This paper presents magnet notching technique to reduce cogging torque of axial flux PMBLDC motor designed for electric vehicle application. Reference axial flux PMBLDC motor of 250 W, 150 rpm is designed with 48 stator slo...