1972
DOI: 10.13182/nt72-6
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Smoothed Values of the Enthalpy and Heat Capacity of UO2

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Cited by 73 publications
(18 citation statements)
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“…At that time and later, theoretical studies [8][9][10][11][12][13][14][15][16][17][18][19][20][21] provided estimates and fits to original C o p values on the basis of theoretical formulae taking account of different contributions to the heat capacity of UO 2 : harmonic and anharmonic lattice vibrations, thermal expansion, defects or electronic contributions. Integration of C o p values were performed in order to recalculate the enthalpy increments at high temperature and to compare directly with calorimetric results.…”
Section: Thermodynamic Data For the Uo 2 Stoichiometric Compoundmentioning
confidence: 99%
“…At that time and later, theoretical studies [8][9][10][11][12][13][14][15][16][17][18][19][20][21] provided estimates and fits to original C o p values on the basis of theoretical formulae taking account of different contributions to the heat capacity of UO 2 : harmonic and anharmonic lattice vibrations, thermal expansion, defects or electronic contributions. Integration of C o p values were performed in order to recalculate the enthalpy increments at high temperature and to compare directly with calorimetric results.…”
Section: Thermodynamic Data For the Uo 2 Stoichiometric Compoundmentioning
confidence: 99%
“…For UO 2 there is a deviation from linear thermal expansion and a classical Debye description of the constant pressure specific heat above 1300 K [11][12][13][14][15][16][17][18][19][20]. At 2670 K (0.85T m ) there is a peak in the specific heat due to a premelting transition or superionic transition as seen in other fluorite structures [11].…”
Section: Introductionmentioning
confidence: 99%
“…Among the different physical properties, the electrical and thermal properties have received special attention since they exhibit singular behaviour in the vicinity of 1300 K which is the typical temperature of UO 2 pellets in normal PWR operation. Around this range of temperature, it is observed, indeed, that electrical conductivity and heat capacity both present a drastic change in their temperature dependence [1][2][3][4][5][6][7]. This abnormal behaviour has been attributed either to the emergence of intrinsic electronic charge carriers [8,9], or to simultaneous electronic and oxygen anti-Frenkel pair disorder [10].…”
Section: Introductionmentioning
confidence: 99%