EXPERIMENTAL EVIDENCE FOR TWO KINDS OF DEFECTS IN AMORPHOUS Fe₈₀ B₂₀

Abstract

The scattering of cold neutrons (λ = 1 nm) with amorphous Fe80 11B20 yields a strong contribution at small q=4π (0.7 (nm)-1 ≤ q ≤ 2.4 (nm)-1 arising from two kinds of defects of different size : i) local defects with an extent of about 1.5 nm ii) Extended defects with an extent of about 40 to 60 nm, which are interpreted as quasi-dislocations in the amorphous material

The effect of structural relaxation on SANS and its anisotropy in a metallic glass

“…Other workers have attributed SANS in this Q range in metallic glasses to quasi-dislocations [17]. Figure 5 shows In I(Q) vs.…”

Surface states and magnetic heterogeneity in iron-based glasses

“…For the sake of comparison with previously reported data [2,3], figure 2 shows an alternative representation of the data, namely In I vs. In q for both the magnetic and the surface contributions to SANS signal.…”

Versetzungstheorie des Schmelzens auf der Grundlage der Cluster-Entropie-Hypothese (CEH)

“…Die dadurch erzeugten Bereiche unterschiedlicher Strukturkriimmung sollten in der Schmelze ein oder mehrere Korndurchmesser (5-30 nm in einer Richtung) betragen, die Modulation der Defektenergiedichte 1-2 nm. Diese Gr6t~en k6nnten Bereichen entsprechen, die in einer SANS-Untersuchung [11] einer amorphen Legierung gefunden wurden ("quasidislocations", ,,small defects").…”