Heat capacity of yttria fully stabilized zirconia in the temperature range of 300-1270 K
D.A. Samoshkin, S.V. Stankus
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
Keywords: YSZ, specific heat capacity, differential scanning calorimetry
Abstract
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 cera-mics. 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.
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