TY - JOUR
T1 - Long-term correlations distinguish coarsening mechanisms in alloys
AU - Stadler, Lorenz-Mathias
AU - Sepiol, Bogdan
AU - Weinkamer, Richard
AU - Hartmann, Markus
AU - Fratzl, Peter
AU - Kantelhardt, Jan W.
AU - Zontone, Federico
AU - Grübel, Gerhard
AU - Vogl, Gero
N1 - Zeitschrift: Physical Review B - Condensed Matter and Materials Physics
Coden: PRBMD
Art-Nr: 180101
Affiliations: Institut für Materialphysik, Universität Wien, Strudlhofgasse 4, A-1090 Wien, Austria; Max-Planck-Inst. Colloids/Interfaces, Department of Biomaterials, D-14424 Potsdam, Germany; Inst. fur Theoretische Physik III, Justus-Liebig-Universitat Giessen, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany; Europ. Synchrt. Radiation Facility, BP 220, F-38043 Grenoble Cedex, France
Adressen: Stadler, L.-M.; Institut für Materialphysik; Universität Wien; Strudlhofgasse 4 A-1090 Wien, Austria; email: [email protected]
Import aus Scopus: 2-s2.0-0345802903
17.12.2007: Datenanforderung 2031 (Import Sachbearbeiter)
PY - 2003
Y1 - 2003
N2 - We determine long-term correlations in the time series of fluctuating x-ray speckle intensities. A fluctuation analysis of small angle x-ray scattering data of the two phase-separating alloys Al-6 at. %Ag and Al-9 at. %Zn at late stages of phase separation reveals long-term correlations that are dramatically different for the two systems. From a comparison with recent Monte Carlo simulations We conclude that two different coarsening mechanisms are predominant in the two alloys-coarsening either by diffusion of single atoms or by movement of whole precipitates.
AB - We determine long-term correlations in the time series of fluctuating x-ray speckle intensities. A fluctuation analysis of small angle x-ray scattering data of the two phase-separating alloys Al-6 at. %Ag and Al-9 at. %Zn at late stages of phase separation reveals long-term correlations that are dramatically different for the two systems. From a comparison with recent Monte Carlo simulations We conclude that two different coarsening mechanisms are predominant in the two alloys-coarsening either by diffusion of single atoms or by movement of whole precipitates.
U2 - 10.1103/PhysRevB.68.180101
DO - 10.1103/PhysRevB.68.180101
M3 - Article
SN - 1098-0121
VL - 68
JO - Physical Review B
JF - Physical Review B
IS - 18
M1 - 0180101
ER -