New nanocomposite hard magnetic materials for applications for bonded magnets

aim of project
The project is aimed at elaboration of a new group of nanocomposite hard magnetic materials, based on the Nd- Fe-B system. The main scientific aim is to prepare new materials with high coercivity, composed of Nd2Fe14B and soft magnetic phase. The alloys in this project will be fabricated by melt spinning and subjected to resin bonding. The cognitive aim of the studies is to determine the eff ect of minor additions of refractory metals on the kinetics of crystallization of Nd-Fe-B alloys, subjected to rapid solidification from melt. This study will be realized by structural analysis with the application of x-ray phase analysis, transmission electron microscopy and magnetic measurements. Location of the additional elements in the microstructure will be analyzed.

expected results
The results of this project will comprise:
Elaboration of a new material and its processing method using
rapid solidification from melt.

Fabrication of bonded magnets, using newly elaborated alloys.

Evaluation of the effect of selected refractory elements on the phase structure formation in the course of rapid solidification of Nd-Fe-B melt.