Effect of Nanometal Deposited Layers on Properties of NdFeB Powders and Magnets

Abstract:

Six kinds of cladding combination of nanometal with one or two layers were electrodeposited on the surface of NdFeB powders. The electrode potential of those powders were measured to be a mixed potential combined NdFeB and deposited metals. It was shown that the properties of magnetic powder were related to the property of deposited metals. The resistivity of magnets showed the mixed resistivity of NdFeB and deposited metals. It was found that the resistivity of the sample deposited by the nano-Zn/Ni film increased abnormally, and its (BH)m and Hc decreased in various degrees.