Enhancement in magnetic torque of cylindrical micro rotor by usage of directly consolidated α-Fe/Pr2Fe14B-based nanocomposite thick-films | Zendy

F. Yamashita | Zendy; S. Nishimura | Zendy; Osamu Kobayashi | Zendy; Masahiro Itoh | Zendy; Masaki Nakano | Zendy; H. Fukunaga | Zendy; K. Ishiyama | Zendy

Open Access

Enhancement in magnetic torque of cylindrical micro rotor by usage of directly consolidated α-Fe/Pr2Fe14B-based nanocomposite thick-films

Author(s) -

F. Yamashita,

S. Nishimura,

Osamu Kobayashi,

Masahiro Itoh,

Masaki Nakano,

H. Fukunaga,

K. Ishiyama

Publication year - 2011

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.3553934

Subject(s) - remanence , coercivity , nanocomposite , materials science , torque , rotor (electric) , isotropy , composite material , magnet , condensed matter physics , magnetic field , nuclear magnetic resonance , magnetization , mechanical engineering , physics , thermodynamics , optics , engineering , quantum mechanics

An advanced preparation method was carried out to obtain a magnetized cylindrical micro rotorfabricated from directly consolidated isotropic -Fe/Pr2Fe14B nanocomposite thick-films with self-bonding layer. A magnetic torque of the above film with the remanence value of 0.97 T, the coercivity value of 650 kA/m, and the (BH)max value of 142 kJ/m3 was investigated under different field strengths. Namely, magnetic torque of the above-mentioned rotor with a single pole pairincreased by 117, compared with that of Fe3B/Nd2Fe14B films with the remanence value of 1.1 T, the coercivity value of 334 kA/m, and the (BH)max value of 95 kJ/m3. It was found that the use of -Fe/Pr2Fe14B films is effective in obtaining a multipolarly magnetized micro rotor with highly dense torque as well as magnetic stability

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