Heat capacity of GdBiGeO5 in the temperature range 373–1000 K

Resumo

Ternary oxide GdBiGeO₅ was synthesized by a ceramic method. The heat capacity of crystalline gadolinium bismuth germanate as a function of temperature in the range 373–1000 K has been studied by differential scanning calorimetry. It has been demonstrated that the temperature dependence of the heat capacity can be described by the classical Maier–Kelley equation. From the experimental C_P = f(T) data, the thermodynamic functions (the change in enthalpy and entropy) of ternary oxide GdBiGeO₅ have been calculated.