<i>In Situ</i> Synchrotron High-Pressure X-ray Analysis for ZnO with Rocksalt Structure

Compressibility of the high-pressure rocksalt phase of ZnO

High-pressure structure and equation of state study of nitrosonium nitrate from synchrotron x-ray diffraction

Several nitrogen oxide compounds transform to nitrosonium nitrate (NONO3 ) under high pressure. In this study, NONO3 2 was synthesized by laser heating of N2O in a diamond-anvil cell and characterized by x-ray diffraction as a function of pressure at room temperature and low temperature. The unit-cell parameters were refined up to 32.2 GPa at 300 K, resulting in a denser structure than reported...

High-pressure x-ray tomography microscope: Synchrotron computed microtomography at high pressure and temperature

A new apparatus has been developed for microtomography studies under high pressure. The pressure generation mechanism is based on the concept of the widely used Drickamer anvil apparatus, with two opposed anvils compressed inside a containment ring. Modifications are made with thin aluminum alloy containment rings to allow transmission of x rays. Pressures up to 8 GPa have been generated with a...

Synchrotron X-ray structure refinement of Zn4Sb3

The structure of the thermoelectric Zn4Sb3 is refined using synchrotron X-ray powder diffraction data collected at wavelengths both near to and relatively far from the Zn adsorption edge. In agreement with earlier studies, the compound crystallized in a trigonal structure, space group R3c with a = 12.2406(3)Å, c = 12.4361(3)Å at room temperature, and there are three primary sites in the asymmet...

High-pressure synthesis of MnO–ZnO solid solutions with rock salt structure: in situ X-ray diffraction studies

X-ray diffraction with synchrotron radiation has been used for the first time to study chemical interaction in the MnO–ZnO system at 4.8 GPa and temperatures up to 1600 K. Above 750 K, the chemical reaction between MnO and ZnO has been observed that resulted in the formation of rock salt (rs) Mn1-xZnxO solid solutions (0.3 ≤ x ≤ 0.7). The lattice parameters of these solid solutions have been in...