Detector image of a Laue exposure of the 400-reflection of the silicon wedge for a tube to sample distance of 3 m and a sample to detector distance of 1.5 m (defocussed setup); the two dark lines in the Bragg reflection correspond to the characteristic tungsten Kα1 and Kα2-lines. The illuminated sample volume and thus the divergence were afterwards decreased by a slit system in order to receive signal only from the Kα1-line corresponding to an energy of 59.3 keV.
STEM BF image of a plate-like oxygen precipitate in the (001) view observed in a sample annealed at 650 °C for 141 h followed by an anneal at 900 °C for 20 h. Note that the size of precipitate corresponds to its diagonal length.
EDX images of plate-like oxygen precipitates in the (001) view observed in the sample annealed at 650 °C for 141 h followed by an anneal at 900 °C for 20 h; image of a precipitate oriented perpendicular to the plane (left) (same as in Fig. 1 ), and image of a precipitate oriented parallel to the plane (right).
Evolution of the average Bragg intensity with the annealing time at 900 °C. The black dotted line corresponds to the calculated ideal crystal behavior; from light grey to black 0 h, 1 h, 2 h, 4 h, 10 h, and 19.5 h, respectively.
Comparison of the experimental data with the statistical dynamical theory for the measurement at the beginning of the annealing time (light grey), for an annealing of 2 h (dark grey) and at the end of the annealing at 19.5 h (black).
Fit of the square of the precipitate radius against annealing time at 900 °C within Ham's theory of precipitation.
Values of the static Debye-Waller factor E as a function of the annealing time.
Equivalent radius of the precipitates for different annealing times at 900 °C.
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