The effect of Pr and Zr substitutions on the disproportionation reaction in Nd-Fe-B-based materials

Anisotropic ternary Pr13Fe80B7 powders prepared by hydrogenation disproportionation desorption recombination process

“…No demagnetization correction for the geometry of the sample was made and the density of the powders used for the measurement was about 7.6 g / cm 3 . The alloy ingots were homogenized at 1050°C for 24 h and crushed into powders with a particle diameter size of ϳ0.2 mm.…”

Effects of the conventional HDDR process and the additions of Co and Zr on anisotropy of HDDR Pr–Fe–B-type magnetic materials

“…It has been shown that Co and Zr addition is helpful for preparing anisotropic Pr-Fe-B magnetic materials [4][5][6][7][8], but the study on the detailed relationship between the additions and the DOA of HDDR Pr 13 Fe 80 B 7 magnetic materials is very limited. Fig.…”

“…Pr 2 Fe 14 B-type alloys are comparable in terms of their intrinsic magnetic properties and phase relations with the advantages of a much lower spin-reorientation temperature [2], so the HDDR process is tried in the preparation of anisotropic Pr 2 Fe 14 B-type magnetic powders. It has been shown that both anisotropic ternary Pr-Fe-B and Pr-Fe-B-type powders with alloying additions can be prepared by the appropriate solid-HDDR process [3][4][5][6][7][8][9]. However, the origin of anisotropy is unclear till now.…”

The Effect of Cu, P, Ga and Gd on Microstructure and Magnetic Properties in the PrFeCoBNb HD Sintered Magnets

“…Substitution of the neodymium for praseodymium avoids spin reorientation at low temperatures 1 . Although Nd is more abundant than Pr, nowadays, praseodymium is cheaper due demand 2,3 . Applications with permanent sintered (Nd-Pr)FeB magnets in high efficient motors require high temperature stability.…”