Heat capacity of yttria fully stabilized zirconia in the temperature range of 300–1270 K

Method of differential scanning calorimetry was applied for measuring the specific isobaric heat capacity of yttria fully stabilized zirconia (15 wt. %), which is widely used in production of high-temperature structural ceramics. New reliable experimental results were obtained on the specific heat capacity in the temperature range of 300–1270 K of a solid state with the uncertainty of 2–4 %. A table of reference data for specific heat capacity of the ceramics is presented. The experimental data are compared with available reference data. The study found that for a wide range of temperature and Y2O3 concentration, the heat capacity of YSZ solid ceramics can be accurately evaluated using the Neumann–Kopp rule and also by the average atomic weight of the compound.