Studies on sintered permanent magnets RE-Fe-M-Co-B (RE = Nd, Pr, Dy, Tb; M = Si, Al, Cr)

Autor: D.V. Pokrowskii, V.V. Sergeev, S. Szymura, G. Pawłowska, Yu. M. Rabinovich, Henryk Bala
Jazyk: angličtina
Rok vydání: 1990
Předmět:
Zdroj: Revue de Physique Appliquée
Revue de Physique Appliquée, Société française de physique / EDP, 1990, 25 (12), pp.1205-1211. ⟨10.1051/rphysap:0199000250120120500⟩
ISSN: 0035-1687
2777-3671
DOI: 10.1051/rphysap:0199000250120120500⟩
Popis: The microstructure, magnetic properties and corrosion behaviour of RE 16Fe7(1-x)M(x)Co5B8 (RE = Nd, Pr, Dy, Tb ; M = Si, Al, Cr) sintered magnets have been examined. It was established that the presence of Re-(Co, Fe, M) compound along the grain boundaries of these alloys was responsible for inhibition of the corrosion in acid solution and in atmospheric environment. The best magnetic properties obtained in these studies are Br = 1.26 T and MHc = 1 730 kA/m for the Nd14DyTbFe70SiCo5B8 alloy.
Databáze: OpenAIRE