J. Phys. I France
Volume 2, Numéro 6, June 1992
Page(s) 1029 - 1041
DOI: 10.1051/jp1:1992194
J. Phys. I France 2 (1992) 1029-1041

Medium range structure of amorphous Fe 44Ni 36B 20-alloys by means of neutron-scattering at small momentum transfer

H. Träuble, P. Lamparter and S. Steeb

Max Planck Institute for Metal Research, Institute for Materials Science, Seestrasse 92, 7000 Stuttgart 1, Germany

(Received 19 November 1991, accepted in final form 27 January 1992)

The medium range structure of amorphous Fe 44Ni 36B 20-alloys was investigated using neutron small angle scattering with isotopic substitution and immersion technique. The bulk material contains density fluctuations but no concentration fluctuations. In addition, surface scattering is caused by surface roughness. The regions with different densities within the bulk as well as on the surface are separated by smooth boundaries. The structure of the bulk is the same with all three melt spun specimens, whereas the surface apparently differs from specimen to specimen.

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