Local Order in Amorphous Fe-alloys View Full Text


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Article Info

DATE

2002

AUTHORS

Despina Louca, Kyungsoo Ahn, V. Ponnambalam, S. J. Poon

ABSTRACT

ABSTRACT The pair density function analysis of neutron diffraction data of Fe-based metallic glasses of the Zr and Mo series shows how the local atomic structure changes by chemical substitution. The results provide evidence for short-range chemical reorganization accompanied by a volume contraction that could in turn be associated with stronger glass forming ability. While the existence of chemical short-range topological ordering is enhanced in both systems by alloying with a transition metal such as Mn, locally , the atomic structure changes in a way that corresponds to an increase in bonding interactions. The shortening of bonds is also related to volume contraction that can in turn be associated with a reduction of the ferromagnetic coupling of the Fe sublattice and to a lower Curie transition temperature. More... »

PAGES

cc7.7

Identifiers

URI

http://scigraph.springernature.com/pub.10.1557/proc-754-cc7.7

DOI

http://dx.doi.org/10.1557/proc-754-cc7.7

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1067955776


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