Title: Surface segregation study of a dilute Pd1Fe99 alloy by LEIS and XPS
Authors: Bertolini, JC ×
Rousset, JL
Miegge, P
Massardier, J
Tardy, B
Samson, Y
Khanra, BC
Creemers, Claude #
Issue Date: Jan-1993
Publisher: Elsevier science bv
Series Title: Surface science vol:281 issue:1-2 pages:102-110
Abstract: Pd segregates to a large extent to the surface of a Pd1Fe99 alloy stabilized at 870 K. The outer layer composition contains as much as 55 +/- 5 at% Pd as deduced from LEIS data. Complementary XPS measurements performed at various exit angles with respect to the surface indicated that the Pd enrichment extends to more than one layer below the very surface. A calculation of the segregation free enthalpy based on the broken bond model using macroscopic thermodynamic data, allows us to describe the concentration equilibrium between the first and second layers well.
ISSN: 0039-6028
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Process Engineering for Sustainable Systems Section
× corresponding author
# (joint) last author

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