Investigation of the relationship between the consistence and microstructure of sintered Nd-Fe-B magnets

One of the most important factors that lower the consistence is the appeara nce of regions where the technological parameters deviate from the points w here the sensors are located. In this paper this was investigated on the ba sis of the relationship between the intrinsic coercivity and the microstruc ture parameters of sintered Nd-Fe-B magnets. It is found that the magnet wi th a fairly good microstructure will have higher consistence than the magne t with a relatively poor microstructure under the same technological condit ions. This indicates that the more effective approach to enhance the consis tence of a magnet is to optimize its microstructure other than to rigorousl y enforce the technological conditions. The results obtained show some dire ctive for improving the consistence of the magnetic properties of sintered Nd-Fe-B magnets.