Thermal expansion of corundum structure Ti2O3 and V2O3

Abstract

The thermal expansion coefficients of the corundum structure oxides Ti2O3 and V2O3 were measured by elevated-temperature x-ray diffraction techniques, the former to 300 °C and the latter to 1000 °C. Compared with corundum, both of these oxides exhibit deviations in their thermal expansion behavior which may be attributed to electronic interactions of the transition metal cations.