Hostname: page-component-7479d7b7d-68ccn Total loading time: 0 Render date: 2024-07-12T03:52:46.284Z Has data issue: false hasContentIssue false
  • English
  • Français

Fabrication and Properties of Granular Fe-Ni Alloys

Published online by Cambridge University Press:  21 February 2011

A. Gavrin  and
C. L. Chien
A. Gavrin
Affiliation:
Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218
C. L. Chien
Affiliation:
Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218
Get access

Abstract

Granular alloys of the form (Fe50Ni50)x(Al2O3)1−x, where x is the volume percent, have been produced by sputtering from a single composite target. The microstructure has been verified by X-ray diffraction and by transmission electron microscopy (TEM). The grains are single phase FeNi alloys with the fcc structure and range in size from 15 Å to 50 Å. Superparamagnetism has been observed, and the coercivity has been found to decrease with increasing grain size. The results are compared to previous work on granular Fex(SiO2)1−x.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 132: Symposium G – Multicomponent Ultrafine Microstructures , 1988 , 143
Copyright
Copyright © Materials Research Society 1989

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. Abeles, B., Sheng, P., Couts, M.D., and Arie, Y., Adv. Phys. 24,407 (1975).Google Scholar
2. Sheng, Ping, Phys. Rev B 31, 4906 (1985).Google Scholar
3. Schoenberg, D., Superconductivity (Cambridge University Press, London, 1962).Google Scholar
4. Xiao, Gang, Liou, S.H., Levy, A., Taylor, J.N., and Chien, C.L., Phys. Rev. B 34, 7573 (1986); Gang Xiao and C.L. Chien, Appl. Phys. Lett 51, 1280 (1987); S.H. Liou and C.L. Chien, Appl. Phys. Lett 52, 512 (1988).CrossRefGoogle Scholar
5. Cohen, R.W. and Abeles, B., Phys. Rev. 168, 444 (1967); L.G. Feinstein and R.D. Huttemann, Thin Solid Films 20, 103 (1974); E.M. Logothetis, W.J. Kaiser, H.K. Plummer and S.S. Shinozaki, J. Appl. Phys. 60, 2548 (1986).CrossRefGoogle Scholar
6. Sumiyama, K. and Nakamura, Y., J. Magn. Magn. Mater. 35, 219 (1983).CrossRefGoogle Scholar
7. Hansen, M. and Anderko, K.: Constitution of Binary Alloys (Mcgraw- Hill, New York, 1958) p.678 Google Scholar
8. Morrish, A.H., The Physical Principles of Magnetism (Wiley, New York, 1965), pp. 317–318.Google Scholar
9. Jacobs, I.S. and Bean, C.P., in Magnetism III, edited by G.T., Rado and H., Suhl (Academic, New York, 1963), p. 275.Google Scholar