TY - JOUR
T1 - Multi-polarly micro rotor prepared from isotropic nano-crystalline films with self-bonding layer
AU - Yamashita, F.
AU - Menjo, N.
AU - Nishimura, S.
AU - Kobayashi, O.
AU - Itoh, M.
AU - Terada, K.
AU - Nakano, M.
AU - Fukunaga, H.
AU - Ishiyama, K.
PY - 2011
Y1 - 2011
N2 - A magnetized micro rotor such as 1.6 mm in outer diameter was prepared from a laminated isotropic nanocrystalline film with an optimized self-bonding layer. A relative density(RD) higher than 85 % in perpendicular direction of the above film could be obtained, and an estimated permeance coefficient, B/μoH, exceeded 20 by 3-D finite element method. Furthermore, an enhancement of magnetic torque and relative torque constant, dT/dH-gradient, of the above-mentioned sample with the single pole pair could be achieved. Consequently, it was found that use of laminated isotropic film with optimized self-bonding layer is effective in obtaining a multi-polarly magnetized micro rotor with highly dense torque compared with those of a bonded magnet prepared from consolidated flake with the same materials.
AB - A magnetized micro rotor such as 1.6 mm in outer diameter was prepared from a laminated isotropic nanocrystalline film with an optimized self-bonding layer. A relative density(RD) higher than 85 % in perpendicular direction of the above film could be obtained, and an estimated permeance coefficient, B/μoH, exceeded 20 by 3-D finite element method. Furthermore, an enhancement of magnetic torque and relative torque constant, dT/dH-gradient, of the above-mentioned sample with the single pole pair could be achieved. Consequently, it was found that use of laminated isotropic film with optimized self-bonding layer is effective in obtaining a multi-polarly magnetized micro rotor with highly dense torque compared with those of a bonded magnet prepared from consolidated flake with the same materials.
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U2 - 10.1088/1742-6596/266/1/012051
DO - 10.1088/1742-6596/266/1/012051
M3 - Article
AN - SCOPUS:79952026675
VL - 266
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012051
ER -