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The thermal behaviour of a 30Li2O·70TeO2 glass was studied by use of an in situ high‐temperature X‐ray diffractometer equipped with a position‐sensitive detector (PSD). The dynamical structural changes were also observed by differential thermal analysis (DTA) and differential scanning...
Small‐angle neutron scattering (SANS) diffraction experiments involve scattering of a monochromatic beam of neutrons and measuring the angular distribution of the scattered neutrons. Unlike conventional diffraction experiments, the scattering angles involved in a SANS experiment are small. In...
A new computer program for on‐line crystallographic analysis in transmission electron microscopy (TEM) is presented. The program is based on the fast on‐line determination of single‐crystal orientations from Kikuchi and spot patterns. Spot patterns, which are particularly useful in the case...
Analytical formulae for all Laue groups are derived, giving the dependence of the residual elastic strain measured by X‐ray and neutron diffraction on the direction in the sample and on the Miller indices. These formulae are valid for isotropic polycrystals in the limits of the Reuss and Voigt...
A general method to describe the instrumental resolution function for grazing‐angle X‐ray scattering experiments is presented. A resolution function is introduced as the Gaussian joint‐distribution function of the (interdependent) random deviation q′ associated with the wavevector...
Methods for correcting specimen absorption in X‐ray diffraction experiments, dedicated to two‐dimensional area‐detector systems and broad diffuse scattering phenomena, are implemented and tested. The respective transmission factors, in relation to the crystal or specimen shape, are applied...
Light water is frequently used as a standard for calibrating small‐angle neutron scattering (SANS) data. The intensities collected for 1 and 2 mm of light water in standard quartz cells may differ by up to about 50% due to the presence of multiple and inelastic scattering (Rennie & Heenan...
A method for the preparation of a well aligned silver behenate sample is described. Multiple (0 0 l) diffraction peaks, (0 0 1) to (0 0 48), are easily observed using a conventional laboratory X‐ray diffraction instrument.
A method of powder diffraction analysis is proposed that is applicable to transition metal nanoparticles and which has been applied to palladium. From results of simulations it is shown that: (a) the overall average lattice constant of small transition metal clusters decreases with decreasing...
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