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Exelfs of Metallic Glasses

Published online by Cambridge University Press:  10 February 2011

Y. Ito
Affiliation:
Department of Materials Science and Engineering, Lehigh University, 5 East Packer Ave.Bethlehem, PA, 18015 USA
F. M. Alamgir
Affiliation:
Department of Materials Science and Engineering, Lehigh University, 5 East Packer Ave.Bethlehem, PA, 18015 USA
H. Jain
Affiliation:
Department of Materials Science and Engineering, Lehigh University, 5 East Packer Ave.Bethlehem, PA, 18015 USA
D. B. Williams
Affiliation:
Department of Materials Science and Engineering, Lehigh University, 5 East Packer Ave.Bethlehem, PA, 18015 USA
R. B. Schwarz
Affiliation:
Los Alamos National Laboratory, Los Alamos, NM 87545, USA
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Abstract

The feasibility of using extended energy-loss fine structure (EXELFS) obtained from ∼1 nm regions of metallic glasses to study their short-range order has been examined. Ionization edges of the metallic glasses in the electron energy-loss spectrum (EELS) have been obtained from PdNiP bulk metallic glass and Ni2P polycrystalline powder in a transmission electron microscope. The complexity of EXELFS analysis of L- and M-ionization edges of heavy elements (Z>22, i.e. Ni and Pd) is addressed by theoretical caluculations using an ab initio computer code, and its results are compared with the experimental data.

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

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