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Effect of cobalt substitution on structure and magnetic properties of Nd0.4Zr0.6Fe10-xCoxSi2(x =0-3) alloys and their ribbons
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作者 M.Gjoka c.sarafidis +5 位作者 G.Giannopoulos D.Niarchos G.Hadjipanayis J.A.Tabares G.A.Pérez Alcázar L.E.Zamora 《Journal of Rare Earths》 SCIE EI CAS CSCD 2019年第10期1096-1101,共6页
This study reports the stabilization of the RFe12-type based compounds where part of R and Fe are substituted with Zr and Co and Si, respectively, in order to examine whether these rare-earth-lean materials are suitab... This study reports the stabilization of the RFe12-type based compounds where part of R and Fe are substituted with Zr and Co and Si, respectively, in order to examine whether these rare-earth-lean materials are suitable for applications as permanent magnets. Structural and magnetic characterization of the family of alloys with the general formula Nd0.4 Zr0.6 Fe10-xCoxSi2(x = 0 -3) and their melt-spun ribbons were carried out using X-ray diffraction and M€ossbauer spectroscopy. The ThMn12-type structure is obtained for all samples as the majority phase with a minority a-Fe(CoSi) phase(less than 5 wt%) as it was estimated by XRD for x = 1 and 2. The Curie temperature increases linearly with Co substitution from 561 K for x = 0 to 712 K for x = 3. The saturation magnetization decreases slightly from 130.5(x =1)to 129.1 A·m2/kg(x=3), while the anisotropy field is following the same trend. 展开更多
关键词 Permanent MAGNETS X-ray diffraction M€ossbauer spectroscopy Rare-earth-lean MAGNETIC materials MAGNETIC properties MELT-SPUN RIBBONS
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