Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
권호 표지
DOI QR코드

DOI QR Code

Structure and Magnetic Properties of a Fe73.5Si13.5B9Nb3Cu1 Alloy Nanopowder Fabricated by a Chemical Etching Method and Milling Procedure

  • Hong, Seong-Min (Department of Materials Science and Engineering, Chungnam National University) ;
  • Kim, Jeong-Gon (Image Printing, Incheon City College) ;
  • Kim, Cheol-Gi (Department of Materials Science and Engineering, Chungnam National University)
  • Published : 2009.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

The magnetic and structural properties of FINEMET (the Hitachi product name of the Fe-Si-B-Nb-Cu alloy) nanopowder with a composition of $Fe_{73.5}Si_{13.5}B_9Nb_3Cu_1$ atomic percent were investigated after annealing, chemical etching, and mechanical milling. The primary and secondary crystallization temperatures were 523 and $550^{\circ}C$, respectively. The grain size of the particles was adjusted by annealing time. Optimally annealed particles exhibited a homogenous microstructure composed of nanometer-sized crystalline grains. The grain boundary of the annealed particles was etched preferentially by chemical etching. Chemically etched particles were broken at the grain boundary by high-energy ball milling. As a result, a nanometer-sized FINEMET powder with a uniform size of crystalline grains was fabricated.

Keywords

References

  1. Y. Yoshizawa, S. Oguma, and K. Yamauchi, J. Appl. Phys. 64, 6044 (1988). https://doi.org/10.1063/1.342149
  2. G. Herzer, IEEE Trans. Magn. 25, 3327 (1989). https://doi.org/10.1109/20.42292
  3. G. Herzer, IEEE Trans. Magn. 26, 1397 (1990). https://doi.org/10.1109/20.104389
  4. S. M. Hong, C. G. Kim, and J. O. Kim, Curr. Appl. Phys. 8, 787 (2008). https://doi.org/10.1016/j.cap.2007.04.051

Cited by

  1. Magnetoelectric Transducer Employing Piezoelectric Ceramic/Ferromagnetic Alloy/High-Permeability FeCuNbSiB Composite vol.47, pp.10, 2011, https://doi.org/10.1109/TMAG.2011.2149508
  2. Dynamic Magneto-mechanical Behavior of Magnetization-graded Ferromagnetic Materials vol.19, pp.3, 2014, https://doi.org/10.4283/JMAG.2014.19.3.215
  3. Large Converse Magnetoelectric Properties Without Bias in Composite of Rosen-Type Piezoelectric Transformer and Magnetization-Graded Ferromagnetic Material vol.51, pp.11, 2015, https://doi.org/10.1109/TMAG.2015.2435013
  4. Giant Converse Magnetoelectric Effect in PZT/FeCuNbSiB/FeGa/FeCuNbSiB/PZT Laminates Without Magnetic Bias Field vol.51, pp.11, 2015, https://doi.org/10.1109/TMAG.2015.2435010
  5. Resonant Magnetoelectric Effect in Winglike Magnetoelectric Composites of Fe-Based Nanocrystalline FeCuNbSiB Alloy and Piezoelectric Ceramic Pb(Zr,Ti)O3 With Middle Bonding vol.51, pp.11, 2015, https://doi.org/10.1109/TMAG.2015.2438116