The main objective is to determine the feasibility of improving the high temperature characteristics of low cost Fe-Co-Nd-B magnets so that they might replace expensive SmCo5 magnets in numerous applications. The researchers propose to magnetically anneal amorphous melt-spun Fe-Co-Nd-B at temperatures near the crystallization in order to increase their coercivity. Since the optimum magnetic annealing temperature and applied field vary with composition, they will optimize those parameters for the system Fe77 XCoxNdl5B8 where X = 15,20,25,30,35,40,45,50,55,60. Curie temperature, energy product, and coercivity will be determined in order to find the composition with the best combination of magnetic parameters.Anticipated Results and
Potential Commercial Applications: Research could lead to the partial replacement of high cost SmCo5 magnets in areas ranging from D.C. Motors and Consumer Electronics to NMR imaging devices in medicine.
