An examination of the thermal expansion of urea using high-resolution variable-temperature X-ray powder diffraction

Direct observation of dynamics of thermal expansion using pump-probe high-energy-resolution x-ray diffraction

Time evolution of thermal expansion in the crystal lattice of diamond was studied on the time scale from 100 ps to 18 μs upon heating of the crystal through the entire thickness by a penetrating optical laser pulse of ≈8 ps in duration. Bragg reflectivity curves were measured at different instants of time using pump-probe high-energy-resolution x-ray diffraction with 10−8 strain sensitivity. Th...

High-Temperature X-Ray Powder Diffraction of Secondary Gypsum

Thermal Behaviour of Sm0.5R0.5FeO3 (R = Pr, Nd) Probed by High-Resolution X-ray Synchrotron Powder Diffraction

Mixed ferrites Sm0.5Pr0.5FeO3 and Sm0.5Nd0.5FeO3 with orthorhombic perovskite structure isotypic with GdFeO3 were synthesized by solid-state reaction technique in air at 1473 K. Structural parameters obtained at room temperature prove a formation of continuous solid solutions in the SmFeO3-PrFeO3 and SmFeO3-NdFeO3 pseudo-binary systems. Sm0.5Pr0.5FeO3 and Sm0.5Nd0.5FeO3 show strongly anisotropi...

the plain x-ray the diagnosis of the acute abdomen_

چکیده ندارد.

Anomalous Thermal Expansion of HoCo0.5Cr0.5O3 Probed by X-ray Synchrotron Powder Diffraction

Mixed holmium cobaltite-chromite HoCo0.5Cr0.5O3 with orthorhombic perovskite structure (structure type GdFeO3, space group Pbnm) was obtained by solid state reaction of corresponding oxides in air at 1373 K. Room- and high-temperature structural parameters were derived from high-resolution X-ray synchrotron powder diffraction data collected in situ in the temperature range of 300-1140 K. Analys...