Improvement of the magnetic properties of highly porous open-celled magnets


Topal U., Bakan H. İ.

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, cilt.31, ss.783-787, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 31 Konu: 5
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.jeurceramsoc.2010.11.037
  • Dergi Adı: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
  • Sayfa Sayıları: ss.783-787

Özet

In the present study, we have investigated the influence of B2O3 addition on structural and magnetic properties of hard magnetic BaFe12O19 foams. In the presence of B2O3 open-celled foams were successfully fabricated at a calcination temperature of 1300 degrees C. Magnetization values have been improved by 50% with B2O3-addition. Remanence magnetization (M-R), specific magnetization at 1.5 T (M-S) and coercive field (H-c) values were obtained to be 32.7 emu/g, 63.0 emu/g and 2100 Oe, respectively for the 0.5 wt% B2O3 containing foams having 30 pores/in. Foams with these magnetic properties have the potential to be used in different areas of technology as permanently magnetic materials. (c) 2010 Elsevier Ltd. All rights reserved.