TY - GEN
T1 - Nd-Fe-B thick-film magnets prepared by high laser energy density
AU - Fujiyama, K.
AU - Yanai, T.
AU - Nakano, M.
AU - Itakura, M.
AU - Fukunaga, H.
N1 - Publisher Copyright:
© 2015 IEEE.
Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2015/7/14
Y1 - 2015/7/14
N2 - Recently, we reported a PLD(Pulsed Laser Deposition)-fabricated isotropic nano-composite thick film magnets with dispersed α-Fe+Nd-Fe-B structure by using the laser energy density (LED) above 10 J/cm2 [1] whose magnetic properties were superior compared with those previously reported α-Fe+Nd-Fe-B nano-composite films prepared by LED lower than 1 J/cm2 [2]. However, the (BH)max value of a film prepared by LED蠇10 J/cm2 was inferior to those of isotropic RE (Nd or Pr)-Fe-B/α-Fe nano-composite ribbons with (BH)max above 130 kJ/m3 [3,4]. Furthermore, in order to apply the nano-composite films prepared by the high laser energy density to a miniaturized device, further enhancement in magnetic properties is required [4]. An investigation on the formation of dispersed α-Fe + Nd-Fe-B structure is also indispensable to advance the preparation of a PLD-fabricated thick-film magnet. This contribution reports the improvement in (BH)max by controlling the film composition. In addition, the formation of microstructure of each film prepared by the high laser energy density was examined as a function of deposition time.
AB - Recently, we reported a PLD(Pulsed Laser Deposition)-fabricated isotropic nano-composite thick film magnets with dispersed α-Fe+Nd-Fe-B structure by using the laser energy density (LED) above 10 J/cm2 [1] whose magnetic properties were superior compared with those previously reported α-Fe+Nd-Fe-B nano-composite films prepared by LED lower than 1 J/cm2 [2]. However, the (BH)max value of a film prepared by LED蠇10 J/cm2 was inferior to those of isotropic RE (Nd or Pr)-Fe-B/α-Fe nano-composite ribbons with (BH)max above 130 kJ/m3 [3,4]. Furthermore, in order to apply the nano-composite films prepared by the high laser energy density to a miniaturized device, further enhancement in magnetic properties is required [4]. An investigation on the formation of dispersed α-Fe + Nd-Fe-B structure is also indispensable to advance the preparation of a PLD-fabricated thick-film magnet. This contribution reports the improvement in (BH)max by controlling the film composition. In addition, the formation of microstructure of each film prepared by the high laser energy density was examined as a function of deposition time.
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U2 - 10.1109/INTMAG.2015.7157723
DO - 10.1109/INTMAG.2015.7157723
M3 - Conference contribution
AN - SCOPUS:84942446736
T3 - 2015 IEEE International Magnetics Conference, INTERMAG 2015
BT - 2015 IEEE International Magnetics Conference, INTERMAG 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 IEEE International Magnetics Conference, INTERMAG 2015
Y2 - 11 May 2015 through 15 May 2015
ER -