Production and annealing of point defects in electron-irradiated copper-gold alloys

Abstract Minimum displacement threshold energies for copper atoms in ordered and disordered Cu3Au and CuAu were determined at 20 K by electrical resistivity measurements during high energy electron bombardment: ECu d min, (20 K)=18 eV in all cases. Previously obtained defect production curves are reanalysed. The recovery of damage introduced by irradiation at 20 K with 0.66 and 2.36 MeV electrons was studied in the ordered compounds: the same stages are observed whatever incident electron energy; this suggests a single type of interstitial (Cu) migrating freely at 70 K; the Au interstitial is thought to take the place of a Cu atom and produce a Cu interstitial associated to an antistructure defect. For the disordered alloys, the recovery after irradiation with 2.4 MeV electrons is continuous from 20 to 250 K. For the four studied alloys, migration of vacancies occurs around 300–400 K and is responsible for long-range ordering of copper and gold atoms. Les energies minimales de deplacement des atomes de cu...

[1]  A. Álamo,et al.  Displacement threshold energy determination for Cu3Au and CuAu ordered alloys , 1983 .

[2]  M. Loretto,et al.  H.V.E.M. study of ordering and disordering in Cu3Au , 1982 .

[3]  G. Désarmot,et al.  Production et restauration des defauts dans des alliages Cu3Au et CuAu irradies aux neutrons rapides a 20 K , 1982 .

[4]  Par D. Lesueur.  Cascades de déplacement dam les solides polyatomiques , 1981 .

[5]  W. King,et al.  Determination of the threshold-energy surface for copper using in-situ electrical-resistivity measurements in the high-voltage electron microscope , 1981 .

[6]  R. Benedek,et al.  Computer simulation study of the displacement threshold-energy surface in Cu , 1981 .

[7]  J. Morillo,et al.  Neutron and electron radiation defects in titanium and tantalum monocarbides: An electrical resistivity study , 1981 .

[8]  N. Yoshida,et al.  An investigation of the temperature dependence of the threshold energy for atom displacement in electron-irradiated copper , 1980 .

[9]  P. Wilkes,et al.  The radiation disorder model of phase stability , 1979 .

[10]  E. Schulson.  The ordering and disordering of solid solutions under irradiation , 1979 .

[11]  M. Jenkins,et al.  Transmission–electron–microscopy studies of displacement cascades in Cu3Au Cascades produced by 100–200 keV Cu+w ions , 1979 .

[12]  P. Rossiter,et al.  The electrical resistivity of Cu3Au , 1978 .

[13]  J. Hillairet,et al.  Migration and elimination characteristics of the self-interstitials in a Ag-30-at.%-Zn alloy , 1978 .

[14]  M. Jenkins,et al.  Transmission electron microscopy studies of displacement cascades in Cu3Au , 1976 .

[15]  F. Maury,et al.  Channeling evidence for a shallow trapping configuration of copper interstitials at gold atoms in a Cu–0.05 at% Au crystal , 1975 .

[16]  S. Takamura,et al.  Recovery of copper alloys after neutron irradiation at low temperatures , 1973 .

[17]  A. Damask,et al.  Electron irradiation of Cu3Au , 1973 .

[18]  A. Sosin,et al.  POINT DEFECT STUDIES IN GOLD BY ELECTRON IRRADIATION AT LOW TEMPERATURES. I. THRESHOLD DISPLACEMENT ENERGY AND DISPLACEMENT CROSS SECTION , 1964 .

[19]  J. N. Kapur.  A Note on the Boundary Layer Equations for Power -Law Fluids , 1963 .

[20]  A. Sosin,et al.  INFLUENCE OF FOREIGN SOLUTE ATOMS ON STAGE I RECOVERY IN ELECTRON- IRRADIATED COPPER , 1962 .

[21]  P. Lucasson,et al.  PRODUCTION AND RECOVERY OF ELECTRON-INDUCED RADIATION DAMAGE IN A NUMBER OF METALS , 1962 .

[22]  M. Anquetil.  Étude de l'alliage Au Cu3 , 1962 .

[23]  Y. Mutō,et al.  Electrical Resistance of Copper-Gold Alloys at Low Temperatures , 1961 .

[24]  R. B. Smith,et al.  Recovery of Electron-Irradiated Copper. I. Close Pair Recovery , 1959 .

[25]  S. Siegel.  Effect of Neutron Bombardment on Order in the Alloy Cu 3 Au , 1949 .

[26]  J. Linde.  Röntgenographische und elektrische Untersuchungen des CuAu-Systems , 1936 .