A high-temperature X-ray diffraction study of the NiO–Li2O system

Abstract

A crystallographic study of the system Ni²⁺ _1−2x Ni³⁺ _x Li⁺ _x O has been carried out. The crystal structure of the material in the range 0≤x≤0.4 at room temperature and up to 1000°C has been studied. The principal coefficients of thermal expansion and the phase diagram are given. The structural rhombohedral → face-centred cubic transition temperature of NiO has been determined.