Effect of Nd Content on Magnetic Properties and Microstructure of NdxFe90.5-xZr3.0B6.5 Nanocomposite Magnets with the Big Zr Content

Abstract:

High performance NdxFe90.5-x Zr3.0B6.5(x=8.5~11.5)ribbons were produced by arc melt spinning and then annealing.It is found that a proper amount of Nd addition can obviously optimize the magnetic properties of the samples.The energy product of NdxFe90.5-xZr3.0B6.5 ribbons is increased from 75 kJ/m3 for x=8.5 to 114 kJ/m3 for x=10.5 which is closed to that of America MQP-B magnets.In addition,it can be seen that Zr dopants can significantly improve the magnetic properties of the ribbons.