Landolt-Börnstein - Group III Condensed Matter

Atomic Defects in Metals · Cu-Ni

Abstract

This chapter discusses the properties and interactions of atomic defects in concentrated alloys like CuxNi1-x. The CuxNi1-x can be considered as a model alloy for the investigation of short range clustering alloys as the structure of the SRO. The kinetics of the formation of SRO have been investigated in detail by neutron-scattering experiments. The annealing of ΔQ after low temperature e--irradiation has been investigated over a wide range of compositions. After neutron irradiation some non-systematic variations of ΔQ are observed. Superannealing due to short range clustering is observed after e--irradiation below 200 K and can only be explained by SIA migration by the interstitialcy mechanism. This conclusion has been established by the observation of SIA clustering by DXS. The attribution of vacancy migration to the annealing between 350-450 K is supported by PAS, which is shown in the table. The changes of ΔQ at higher temperatures correspond to the change of SRO that are possibly due to the release of defects from small clusters.

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Title
Atomic Defects in Metals · Cu-Ni
Book Title
Atomic Defects in Metals
In
2.6.2 Data
Book DOI
10.1007/b37800
Chapter DOI
10.1007/10011948_99
Part of
Landolt-Börnstein - Group III Condensed Matter
Volume
25
Editors
  • H. Ullmaier
  • Authors
  • P. Ehrhart
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