Magnetic properties of Pr-Fe-Co-B bonded HDDR magnets with alloying additions

Materials Research

Eguiberto Galego¹  Hidetoshi Takiishi¹  Rubens Nunes De Faria Jr.¹ 

[1] ,Instituto de Pesquisas Energéticas e Nucleares Centro de Ciencia e Tecnologia de Materiais Grupo de Materiais MagneticosSão Paulo SP ,Brazil

关键词: Pr-based alloys;    magnetic materials;    hydrides;    magnetic properties;    PACS: 71.20.Eh;   

DOI  :  10.1590/S1516-14392007000300010

来源: SciELO

【 摘 要 】

Microstructures and magnetic properties of Pr-Fe-Co-B bonded magnets were investigated. The magnets can be represented by the formulae, Pr14Fe63.9Co16B6M 0.1 (M = Ti, V, Cr, Ni, Zr, Nb or Mo), Pr14Fe63.8Co16B6Nb 0.1T0.1 (T/= Al, Si, P, Cu or Ga) and Pr14Fe63.6Co16B6Nb 0.1R0.3 (R = Gd, Tb or Dy). The effects of additions on the magnetic properties of PrFeCoB-based magnets have been studied. Magnetically hard powders have been produced from homogenised alloys using the hydrogenation, disproportionation, desorption and recombination (HDDR) process. The HDDR powders were isostatically pressed and bonded with cyanoacrylate adhesive to form permanent magnets.

【 授权许可】

CC BY   
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