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


Topal U., Bakan H. İ.

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, vol.31, no.5, pp.783-787, 2011 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 5
  • Publication Date: 2011
  • Doi Number: 10.1016/j.jeurceramsoc.2010.11.037
  • Title of Journal : JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
  • Page Numbers: pp.783-787

Abstract

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.