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Atom-Probe Study of Selective Oxidation of Ni from Cu-Ni Alloy

Published online by Cambridge University Press:  21 February 2011

K. Hono ,
M. Nakamura ,
H. W. Pickering  and
T. Sakurai
K. Hono
Affiliation:
Department of Materials Science & Engineering, The Pennsylvania State University, University Park, PA 16802
M. Nakamura
Affiliation:
Department of Materials Science & Engineering, The Pennsylvania State University, University Park, PA 16802
H. W. Pickering
Affiliation:
Department of Materials Science & Engineering, The Pennsylvania State University, University Park, PA 16802
T. Sakurai
Affiliation:
The Institute for Solid State Physics, The University of Tokyo, Roppongi, Minato-ku, Tokyo 106, Japan
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Abstract

The initial oxidation stages of Cu-Ni alloys have been studied by atom-probe field ion microscopy (APFIM). Oxide layers were formed in-situ in the FIM chamber on the clean alloy surfaces. The Cu-Ni alloys were oxidized in-situ at 1×10−4 Torr O2 at 970 K for less than 1 min. The atom-probe analysis of the {111} and {100} surfaces of the oxidized alloys showed that the oxide was comprised of NiO. The concentration change at the oxide/metal interface was also analyzed by the atom-probe.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 139: Symposium R – High Resolution Microscopy of Materials , 1989 , 283
Copyright
Copyright © Materials Research Society 1989

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