Recent developments in RFe12-type compounds for permanent magnets. (September 2018)

• Record Type: Journal Article
• Authors: Gabay, A.M.; Hadjipanayis, G.C.
• Is Part Of: Scripta materialia. Number 154(2018)
• Page Start: 284
• Page End: 288
• Publication Date: 2018-09
• Subjects: Intermetallic compounds -- ThMn12 -- Permanent magnets -- Coercivity -- Critical elements; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2017.10.033
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: This article discusses the recently intensified studies on the ThMn12 -type hard magnetic compounds. Among the important developments were the synthesis of compounds superior to the Nd2 Fe14 B in saturation magnetization, the increased interest on Ce-substituted and rare-earth-free compounds and also the emergence of mechanochemistry as a method for manufacturing anisotropic powders with high coercivity. The theoretical studies might have had a greater impact if more attention was paid to the structural stability of these compounds. Little information is available on the fabrication of dense three-dimensional magnets; these efforts must be intensified for a successful implementation of the most advanced RFe12 -type materials. Graphical abstract: Image 1