| abstract |
The invention provides a Ce 2 Fe 17 and Ce 2 Fe 17 N 3 alloy powder and a preparation method thereof. The preparation method of the Ce 2 Fe 17 alloy powder includes: mixing: mixing CeO 2 , iron powder and calcium hydride uniformly to obtain a mixture; pressing the cake: pressing the mixture into a cake; high-temperature reduction: making the cake Heat treatment, so that CeO 2 is reduced to elemental Ce; high temperature alloying: continue to heat up the cake after high temperature reduction, so that elemental Ce and Fe diffuse into a phase, and excess Ce is volatilized at high temperature; calcium washing and drying: the The high-temperature alloyed cake is crushed, decalcified and dried in turn to obtain Ce 2 Fe 17 alloy powder. The method has low production cost, short production period, easy control and adjustment of product size, and has great industrial production advantages in mass production. |