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Displacement of Bragg peak positions, with respect to the values at an incidence angle of , as a function of grazing incidence angle for ground and annealed surfaces of single phase alumina. The solid line is the displacement of the Bragg peak due to refraction.
Displacement of Bragg peak positions as a function of incidence angle for ground and annealed surfaces of alumina∕ nanocomposite. The solid line is the shift associated with refraction.
Displacement of 22.6 Bragg peak positions as a function of incidence angle for ground nanocomposite with grinding direction parallel and perpendicular to the x-ray incidence plane (containing the beam and diffraction vector). The data come from several independent experiments. The inset shows the difference between the measured peak displacement and the refraction correction for the 22.6 reflection (perpendicular to the grinding direction) fitted to an exponential function of the x-ray absorption path length. Also shown are data for polished and for polished annealed nanocomposite.
SEM images of surfaces of (a) and (b) nanocomposite after grinding with diamond grinding wheel. Grinding direction: left to right.
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