Journal of Materials Science

, Volume 48, Issue 4, pp 1702–1710 | Cite as

Effect of aluminum substitution on microstructure and magnetic properties of electrospun BaFe12O19 nanofibers

  • Cong-Ju Li
  • Bo-Neng Huang
  • Jiao-Na Wang


BaFe12−x Al x O19 nanofibers (x = 0–2.0) with average diameter 110 nm have been prepared via the electrospinning and subsequent heat treatment at 1100 °C for 2 h. Individual BaFe12O19 nanofibers were composed of numerous nanocrystallites stacking alternatively along the long axis of fiber and the single crystallites on each nanofibers had random orientations. With increasing Al3+ ions substitution contents from 0 to 2.0, the diameter and morphology of nanofibers were almost no change. However, the lattice parameters decreased due to Fe3+ ions substituted by smaller Al3+ ions and the average grain size calculated by the Scherrer’s equation reduced from 47 to 42 nm. The crystallites possessed a hexagonal plate-like shape at x = 0 while they became rod-like with various Al3+ ions substitution. The X-ray diffraction patterns show that single-phase barium hexaferrite was formed when Al3+ ions substitution contents were less than and equal to 1.0, while other impurity phases were detected when they were more than 1.0. The chemical analysis shows that the element Al was all incorporated into the lattice of BaFe12O19 and evenly distributed throughout the BaFe12−x Al x O19 nanofibers. The magnetic testing shows that the saturation magnetization (M s) decreased obviously from 63.92 to 29.70 A m2/kg, while coercivity (H c) increased significantly from 288.2 to 740.7 kA/m with increasing Al3+ ions substitution.


Anisotropy Field SrFe12O19 Barium Ferrite Superexchange Interaction Barium Hexaferrite 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This study was partly supported by the Natural Science Foundation of China (Grant Nos. 51073005, 21274006), the Beijing Natural Science Foundation (Grant Nos. 2112013, KZ201010012012), PHR (IHLB), the 973 Project (Grant No. 2010CB933501), Beijing Municipal Science and Technology Development Program (Grant No. Z111103066611004) and Textile Vision Science & Education fund.


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Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  1. 1.College of Material Science and EngineeringBeijing Institute of Fashion TechnologyBeijingPeople’s Republic of China
  2. 2.Beijing Key Laboratory of Clothing Materials R&D and AssessmentBeijingPeople’s Republic of China

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