Fabrication of CoFe/BaFe₁₂O₁₉ Magnetic Nanocomposite Thin Films by Electrodeposition

Abstract:

A study of the incorporation of barium hexaferrite nanoparticles into a CoFe matrix by means of electrodeposition over brass substrates has been performed. Barium hexaferrite nanoparticles were prepared by co-precipitation route using solution of iron and barium nitrates with a Fe³⁺/Ba²⁺molar ratio of 8, by addition of NaOH with a OH^-/NO₃^- molar ratio of 2. X-ray diffraction (XRD) results indicated that in a sample synthesized from aqueous solution and annealed at 900 °C for 1 hour, BaFe₁₂O₁₉ was the dominant phase. Field emission scanning electron microscopy (FE-SEM) showed plate-like particles of barium hexaferrite by mean diameter of 300 nm and thickness of 45 nm. CoFe-BaFe₁₂O₁₉ nanocomposite thin films were then electrodeposited froma Co-Fe bath containing the barium hexaferrite particles obtained in the first stage of this work. Finally, FE-SEM equipped with energy dispersive spectroscopy (EDS) analyzer and XRD analysis was applied on the deposited films, to confirm presence of the nanoparticles in the film. The average crystallite size of the deposits was around 30 nm. It was also noticed that increasing the concentration of the particles in the electroplating bath, caused a rise in the BaFe₁₂O₁₉ content of the deposits but had no significant effect on the composition of the CoFe matrix.

• Periodical: Advanced Materials Research (Volume 829)
• Pages: 332-336
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.829.332
• Online since: November 2013
• Authors: Soheila Kharratian Khameneh, M. Heydarzadeh Sohi*, Abolghasem Ataie, Saeed Mehrizi
• Keywords: Barium Hexaferrite, CoFe Alloy, Electrodeposition, Magnetic Thin Films, Nanocomposite

References

[1] S. Guan, B.J. Nelson, Electrodeposition of low residual stress CoNiMnP hard magnetic thin films for magnetic MEMS actuators, Journal of Magnetism and Magnetic Materials 292 (2005) 49-58.

DOI: 10.1016/j.jmmm.2004.10.094

[2] E. Thielicke, E. Obermeier, Microactuators and their technologies, Mechatronics 10 (2000) 431-455.

DOI: 10.1016/s0957-4158(99)00063-x

[3] H. Lee, C. Cho, Study on advanced multilayered magnetostrictive thin film coating techniques for MEMS application, Journal of Materials Processing Technology 201 (2008) 678-682.

DOI: 10.1016/j.jmatprotec.2007.11.255

[4] P. Cojocaru, L. Magagnin, E. Gomez, E. Vallés, Nanowires of NiCo/barium ferrite magnetic composite by electrodeposition, Materials Letters 65 (2011) 2765-2768.

DOI: 10.1016/j.matlet.2011.05.085

[5] S. Pane´, E. Go´mez, E. Valle´s, Enhanced magnetism in electrodeposited-based CoNi composites containing high percentage of micron hard-magnetic particles, Electrochemistry Communications 9 (2007) pp.1755-1760.

DOI: 10.1016/j.elecom.2007.03.034

[6] M. Montazeri-Pour, A. Ataie, Synthesis of Nanocrystalline Barium Ferrite in Ethanol/Water Media, Journal of Materials Science and Technology, Vol. 25, No. 4 (2009) 465-469.

[7] E. Go´mez, S. Pane´, E. Valle´s, Magnetic composites CoNi–barium ferrite prepared by electrodeposition, Electrochemistry Communications 7 (2005) 1225-1231.

DOI: 10.1016/j.elecom.2005.08.016

[8] S. Ohnuma, H. Fujimori, T. Masumoto, X. Y. Xiong, D. H. Ping, K. Hono, FeCo–Zr–O nanogranular soft-magnetic thin films with a high magnetic flux density, Applied Physics Letters, Volume 82, Number 6 (2003) 946-948.

DOI: 10.1063/1.1537456

[9] S. Mehrizi, M. HeydarzadehSohi, S.A. SeyyedEbrahimi, Study of microstructure and magnetic properties of electrodeposited nanocrystallineCoFeNiCu thin films, Surface & Coatings Technology 205 (2011) 4757-4763.

DOI: 10.1016/j.surfcoat.2011.03.070

[10] N. Myung, D. Park, B. Yoo, P. Sumodjo, Development of electroplated magnetic materials for MEMS, Journal of Magnetism and Magnetic Materials 265 (2003)189-198.

DOI: 10.1016/s0304-8853(03)00264-6

[11] C. Elbuken, M. Yavuz, M. Khameseec, Development of crystalline magnetic thin films for microlevitation, Journal of Applied Physics 104, 044905 (2008) 1-7.

DOI: 10.1063/1.2969832

[12] Y. Hayashi, S. Hashi, K. Ishiyama, Magnetic Properties of Nanostructured Film Composed of Co-Ferrite Nanoparticles and Metal Co Prepared by Combination of Electrophoretic Deposition and Electroplating, IEEE Transactions on Magnetics, VOL. 48, NO. 11 (2012).

DOI: 10.1109/tmag.2012.2199480

[13] S. Yari, C. Dehghanian, Deposition and characterization of nanocrystalline and amorphous Ni–W coatings with embedded alumina nanoparticles, Ceramics International 39 (2013) 7759-7766.

DOI: 10.1016/j.ceramint.2013.03.033