Abstract
The metal oxides MgO, BaO, Al2O3, SiO2, MgO–Al2O3, CaO–Al2O3, SrO–Al2O3, BaO–Al2O3 and MgO–SiO2 have been coated onto ribbons of the Fe-based amorphous alloy Metglas 2605S3A using a sol–gel process. The effects of the surface coating on the magnetic properties of the alloy are investigated. The d.c. hysteresis loop for ribbons coated with MgO and MgO–Al2O3 is more square shaped than that for the uncoated ribbon. For ribbons coated with BaO, SrO–Al2O3 and BaO–Al2O3 it is more inclined than for the uncoated ribbon. Significant differences in the frequency dependence of the effective permeability are observed that depend on the nature of the coated oxides. The core loss is also affected by the coating. These results may be explained in terms of a stress induced by the coating and the modification of the domain structure via elastic and/or magnetoelastic interactions. It is thought from the magnetoelastic interactions that the MgO and MgO–Al2O3 coatings induce tensile stresses whilst those of BaO, SrO–Al2O3 and BaO–Al2O3 induce compressive stresses.
Similar content being viewed by others
References
D. M. NATHASINGH, C. H. SMITH and A. DATTA, IEEE Trans. Magn. MAG-20 (1984) 1332.
S. TAGUCHI, T. YAMAMOTO and A. SAKAKURA, Ibid. MAG-10 (1974) 123.
D. R. THORNBURG and W. M. SWIFT, Ibid. MAG-15 (1979) 1592.
Y. INOKUTI, K. SUZUKI and Y. KOBAYASHI, J. Jpn. Inst. Met. 59 (1995) 213.
Y. INOKUTI, Ibid. 59 (1995) 347.
S. H. LIM, Y. S. CHOI, Y. J. BAE, H. K. CHAE, T. H. NOH and I. K. KANG, IEEE Trans. Magn. MAG-31 (1995) 3898.
D. C. BRADLEY, R. C. MCHROTRA and D. P. GAUR in “Metal alkoxides”, (Academic, London, 1978) Ch. 2 and Ch. 5.
M. MITERA, H. FUJIMORI and T. MASUMOTO, in “Rapidly quenched metals”, Vol. II, edited by T. Masumoto and K. Suzuki (The Japan Institute of Metals, Sendai, Japan, 1982) p. 1035.
H. FUJIMORI, H. MORITA, M. YAMAMOTO and J. ZHANG, IEEE Trans. Magn. MAG-22 (1986) 1101.
S. H. LIM, Y. S. CHOI, T. H. NOH and I. K. KANG, J. Appl. Phys. 75 (1994) 6937.
M. KERSTEN, Physik. Z. 39 (1938) 860.
S. CHIKAZUMI in “Physics of magnetism”, (J. Wiley, New York, 1964) Ch. 13.
D. JILES, in “Introduction to magnetism and magnetic materials”, (Chapman and Hall, London, 1991) Ch. 7.
R. H. PRY and C. P. BEAN, J. Appl. Phys. 29 (1958) 532.
H. PFUTZNER, P. SCHONHUBER, B. ERBIL, G. HARASKO and T. KLINGER, IEEE Trans. Magn. MAG-27 (1991) 3426.
R. F. KRAUSE and F. E. WERNER, Ibid. MAG-17 (1981) 2686.
V. R. V. RAMANAN, J. Mater. Engng. 13 (1991) 119.
S. H. LIM, Y. S. CHOI, T. H. NOH and I. K. KANG, (unpublished results).
S. CHIKAZUMI, in “Physics of magnetism”, (J. Wiley, New York, 1964) Ch. 12.
B. D. CULLITY, in “Introduction to magnetic materials”, (Addison-Wesley, Reading MA, 1972) Ch. 12.
A. HERNANDO and M. VAZQUEZ, in “Rapidly solidified alloys”, edited by H. H. Lieberman (Marcel Dekker, New York 1993) Ch. 17.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Lim, S.H., Noh, T.H., Bae, Y.J. et al. The magnetic properties of Fe-based amorphous ribbons coated with various oxides using the sol–gel process. Journal of Materials Science 32, 3219–3225 (1997). https://doi.org/10.1023/A:1018615104519
Issue Date:
DOI: https://doi.org/10.1023/A:1018615104519