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author:

Wang, C. (Wang, C..) [1] | Lin, W.C. (Lin, W.C..) [2] | Hsieh, C.C. (Hsieh, C.C..) [3] | Chang, W.C. (Chang, W.C..) [4] | Chang, H.W. (Chang, H.W..) [5] | Sun, A.C. (Sun, A.C..) [6]

Indexed by:

Scopus

Abstract:

The bulk nanocrystalline Nd-Fe-B magnets in cylindrical form with various diameters were prepared by injection casting of the molten alloy into copper moulds. The effects of the diameter size and the application of magnetic field during the solidification process on the magnetic properties and microstructure of Nd9·5Fe71·5Ti2·5Zr 0·5Cr1B14·5C 0·5 alloy have been studied. The smaller the diameter is, the better magnetic properties can be obtained. The intrinsic coercivity of bulk magnet is more sensitive to the diameter size than the remanence. Applying a 3·0 kOe magnetic field during the casting process is helpful to refine the grain size, thus improving the magnetic properties of bulk magnets, especially the intrinsic coercivity. The increase in the intrinsic coercivity induced by the applied magnetic field is much obvious for the samples with larger size. © 2013 W. S. Maney & Son Ltd.

Keyword:

Copper mould casting; Magnetic field; Magnetic properties; Permanent magnets

Community:

  • [ 1 ] [Wang, C.]Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan
  • [ 2 ] [Wang, C.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
  • [ 3 ] [Lin, W.C.]Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan
  • [ 4 ] [Hsieh, C.C.]Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan
  • [ 5 ] [Chang, W.C.]Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan
  • [ 6 ] [Chang, H.W.]Department of Physics, Tunghai University, Taichung 407, Taiwan
  • [ 7 ] [Sun, A.C.]Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li 32003, Taiwan

Reprint 's Address:

  • [Hsieh, C.C.]Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan

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Source :

Materials Technology

ISSN: 1066-7857

Year: 2013

Issue: 5

Volume: 28

Page: 290-294

0 . 7 4 6

JCR@2013

2 . 9 0 0

JCR@2023

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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