Heat capacity and thermodynamic functions of GdGaTi$_{2}$O$_{7}$ in the temperature range of 320–1000 K

Titanate GdGaTi$_{2}$O$_{7}$ has been obtained from the initial oxides Gd$_{2}$O$_{3}$, Ga$_{2}$O$_{3}$, and TiO$_{2}$ by the solid-state synthesis via annealing in air at temperatures of 1273 and 1573 K. The crystal structure of the titanate has been refined by X-ray diffraction. The high-temperature (320–1000 K) heat capacity of the compound has been measured by differential scanning calorimetry. Based on the experimental dependence $C_p = f(T)$, the main thermodynamic functions of the titanate have been calculated.