Skip to main content
SpringerLink
Log in

Microemulsion synthesis and magnetic properies of BaAl4Fe8O19 powders

  • Magnetic Materials and Devices
  • Research Summary
  • Published:
JOM Aims and scope Submit manuscript

Abstract

Al-substituted M-type hexaferrite is a highly anisotropic ferromagnetic material. In the present study, we report the synthesis and the characterization of BaAl4Fe8O19 powder from two microemulsion systems of po1yoxyethylene octylphenol ether/1, 2-propylene glycol, or ethanol/cyclohexane/water and cetrimonium bromide/1, 2-propylene glycol/cyclohexane/water. Two microemulsion systems were found to give wide stable regions. The synthesized powders were characterized with x-ray diffraction, scanning electron microscopy, and vibrating sample magnetometer. The experiment results indicated that the surfactant, co-surfactant, and oil/water ratio remarkably affected the particle size, size distribution, anisotropy and magnetic property of the powders. The powder prepared with microemulsion of po1yoxyethylene octylphenol ether/1, 2-propylene glycol/cyclohexane/water exhibited best particle character, that is, uniform thin particle morphology, large shape anisotropy, small particle size, large coercivity of 8.73 kOe, and saturation magnetization of 20.821 emu·g−1.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. D.H. Choi, S.W. Lee, S.Y. An, S.I. Park, I.B. Shim, and C.S. Kim, IEEE Tran. Magn., 39 (2003), pp. 2884–2886.

    Article  CAS  Google Scholar 

  2. O. Heczko, R. Gerber, and Z. Šimša, Thin Solid Films, 358(1–2) (2000), pp. 206–214.

    Article  CAS  Google Scholar 

  3. J. Kreisel, H. Vincent, F. Taeest, M. Pate, and J.P. Ganne, J. Magn. Magn. Mater., 224 (2001), pp. 17–29.

    Article  CAS  Google Scholar 

  4. S. Komarneni, M.C. D’Arrigo, C. Leonelli, G.C. Pellacani, and H. Katsuki, J. Am. Ceram. Soc., 81(11) (1998), pp. 3041–3043.

    Article  CAS  Google Scholar 

  5. V. Pankov, Mater. Sci. Eng. A, 224(1–2) (1997), pp. 101–106.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi’an, Shaanxi, China, 710021

    H. Y. He, Z. He & Q. Shen

Authors
  1. H. Y. He
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Z. He
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Q. Shen
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to H. Y. He.

Rights and permissions

Reprints and permissions

About this article

Cite this article

He, H.Y., He, Z. & Shen, Q. Microemulsion synthesis and magnetic properies of BaAl4Fe8O19 powders. JOM 63, 34–36 (2011). https://doi.org/10.1007/s11837-011-0171-6

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11837-011-0171-6

Keywords

Search

Navigation