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[2E04] The heat capacity and thermal diffusivity of UO2 at high temperature
Keywords:Uranium dioxide, Heat capacity, Thermal diffusivity, Themal conductivity
The enthalpy and thermal diffusivity up to 2000℃ was measured with drop calorimetry and laser flash instrument, respectively. The heat capacity evaluated from the measurement results of enthalpy sharply increases from 1500℃ that shows different results from the data obtained by some researchers. The thermal diffusivity decreases with increasing of temperature to 1500℃, and has almost stable value above 1500℃.