Metastable phase YFe12 fabricated by rapid quenching method | Zendy

H. Suzuki | Zendy

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Metastable phase YFe12 fabricated by rapid quenching method

Author(s) -

H. Suzuki

Publication year - 2017

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4973799

Subject(s) - magnetization , curie temperature , annealing (glass) , materials science , metastability , quenching (fluorescence) , magnetic moment , condensed matter physics , dumbbell , curie , iron alloys , analytical chemistry (journal) , crystallography , ferromagnetism , chemistry , metallurgy , magnetic field , physics , optics , organic chemistry , fluorescence , medicine , physical therapy , chromatography , quantum mechanics

A nonmagnetic Y element was selected to focus on an Fe lattice, and experiments to produce YFe12 for high magnetization compounds by rapid quenching method were performed. The ThMn12 structure is mainly generated at a roll velocity of around 20 m/s, and the TbCu7 structure is mainly generated at a higher roll velocity. The TbCu7 structure can be changed to the ThMn12 structure by annealing, but at 1000°C, the convergent YFe12 is decomposed into d-Y2Fe17 and α-Fe. It was pointed out that YFe12 has a small number of disordered parts of the Fe-dumbbell substituted into the Y site. It was clear that the magnetic moment of each site in YFe12 are much larger than that of each site in YFe11Ti. The magnetization of YFe12 was estimated to be 1.66 T at liq. N2 temperature. The Curie temperatures of the convergent structures have a maximum value of 212°C in the target composition range of 12

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