Hostname: page-component-848d4c4894-xfwgj Total loading time: 0 Render date: 2024-06-17T11:27:02.908Z Has data issue: false hasContentIssue false
  • English
  • Français

Composition Dependence of Magnetic Shielding Properties for Amorphous Ribbons (FeNi)78Mo4B17Si

Published online by Cambridge University Press:  25 February 2011

Der-Ray Huang ,
Wen-Huu Dow ,
Pei-Chih Yao  and
Shu-En Hsu
Der-Ray Huang
Affiliation:
Materials R&D Center, Chung Shan Institute of Science and Technology P. O. Box 1–26, Lungtan, Taiwan 32500, R.O.C.
Wen-Huu Dow
Affiliation:
Materials R&D Center, Chung Shan Institute of Science and Technology P. O. Box 1–26, Lungtan, Taiwan 32500, R.O.C.
Pei-Chih Yao
Affiliation:
Materials R&D Center, Chung Shan Institute of Science and Technology P. O. Box 1–26, Lungtan, Taiwan 32500, R.O.C.
Shu-En Hsu
Affiliation:
Materials R&D Center, Chung Shan Institute of Science and Technology P. O. Box 1–26, Lungtan, Taiwan 32500, R.O.C.
Get access

Abstract

Amorphous ribbons (FeNi)78Mo4B17Si, made by melt—spinning technique were prepared as magnetic shielding materials. Cylindrical shields (~0.05mm thick) were fabricated by wrapping ribbons on 20cm long pyrex tubes with 45mm diameter. DC and AC (60Hz, 400Hz, 800Hz, 1 kHz) magnetic shielding data were obtained by following the modified ASTM (A698–74) procedure. For DC magnetic fields, Ni—rich shields showed maximum shielding values at lower applied fields (0.1 0e~l 0e), while Fe—rich shields showed maximum shielding values at higher applied fields (1~5 0e). For AC magnetic fields, the magnetic fields, the magnetic shielding effectiveness was also influenced by skin effect at shield' surfaces. By comparing the data to calculations from shielding theory, there is about 8% magnetic shielding effectiveness induced by skin effect at 1 kHz.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 58 , 1985 , 169
Copyright
Copyright © Materials Research Society 1986

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Kaul, S. N., IEEE Trans. on Magnetics, Vol. MAG–17, No. 2, 1208 March (1981).Google Scholar
2.Mendelsohn, L. I., Nesbitt, E. A. and Bretts, G. R., IEEE Trans. on Magnetics, Vol. MAG–12, No. 6, 924 (1976).Google Scholar
3.Dismukes, J. P. and Sellers, G. J., Third Int. Conf. on Rapidly Quenched Metal, 205 July (1978).Google Scholar
4.Thomas, A., IEEE Trans. on Electromagnetic Compatibility, Vol. EMC–10, No. 1, 142 March (1968).Google Scholar
5.Greifinger, G., Greifinger, P. G. and Hart, L. W., IEEE Trans. on Electromagnetic Compatibility, Vol. EMC–23, No. 1, p. 1, Feb. (1981).Google Scholar