Landolt-Börnstein - Group III Condensed Matter

1.7.5.1 Dilute alloys

Abstract

This chapter discusses production of atomic defects in dilute alloys. The major effect of the addition of small amounts of alloying elements in most metals is an enhancement of the initial damage rate and a pronounced curvature of the Δρ/Δφt vs. Δρ curve. Possible reasons are influences of dilute alloying on the defect production process itself (defocussing), or on the stabilization of defects, but also deviations from the additivity of resistivity contributions of different defects (Matthiessen’s rule). At higher doses, only a minor effect of dilute alloying on damage rate is observed. This behaviour is also observed in other metals which show annealing below or around 4.2 K and is attributed to the trapping of point defects at the solute atoms. Electron damage rates of nickel were not measurably changed by the addition of 0.07 at% Si or W, are respectively. For deuteron damage rates in platinum an enhancement by about 20% is reported due to the addition of 0.1 at% Au. Low temperature initial damage rate data of dilute alloys under fission neutron irradiation are tabulated.

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Title
1.7.5.1 Dilute alloys
Book Title
Atomic Defects in Metals
In
1.7.5 Production of atomic defects in alloys
Book DOI
10.1007/b37800
Chapter DOI
10.1007/10011948_18
Part of
Landolt-Börnstein - Group III Condensed Matter
Volume
25
Editors
  • H. Ullmaier
  • Authors
  • P. Jung
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