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Kato, Masato; Nakamichi, Shinya; Takeuchi, K.; Sunaoshi, Takeo

doi:10.1016/j.calphad.2011.02.007

Cited by 12 publications

(9 citation statements)

References 17 publications

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“…The H was estimated to be 445 kJmol -1 in PuO 2-x . Previous reports [14,15] gave the H of (U,Pu)O 2-x as 515 kJmol -1 . The H of PuO 2-x was 70 kJmol -1 lower than that of (U,Pu)O 2-x .…”

Section: ( )mentioning

confidence: 97%

“…Literature data [16][17][18][19] are also shown for comparison, and the value of n was almost -4. The value of n = -4 is also observed in (U 0.88 Pu 0.12 )O 2-x and (U 0.80 Pu 0.20 )O 2-x [14,15]. The data were analyzed assuming that the following defect reaction was dominant for n = -4.…”

Section: Measurement Proceduresmentioning

confidence: 98%

“…The measurement system consisted of a thermo-gravimeter and differential thermal analyzer (Bluker AXE model TG-DTA2000SA) and a gas supply unit; details have been described previously [14,15]. The measurement accuracy of the thermo-gravimeter was ±10 g; thus the O/M change of ±0.001 could be determined.…”

Section: Measurement Proceduresmentioning

confidence: 99%

“…Their stoichiometry significantly affects various physical properties, and the effect of the oxygen-to-metal (O/M) ratio on physical properties has been investigated in them [3][4][5]. The O/M ratio is determined by thermodynamics data, specifically the oxygen potential [6][7][8][9][10][11][12][13][14][15]. Data on PuO 2-x are essential to represent thermodynamic data on (U,Pu)O 2 ± x which is used for nuclear fuel, but the former data are limited.…”

Section: Introductionmentioning

confidence: 99%

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Oxygen potentials of PuO_2-x

et al. 2012

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Oxygen potentials of PuO 2-x were measured at temperatures of 1473 -1873 K by thermogravimetry. The oxygen potentials were determined by in situ analysis as functions of oxygen-tometal ratio and temperature. The measurement data were analyzed on the basis of defect chemistry and an approximate equation was derived to represent the relationship among temperature, oxygen partial pressure, and deviation x in PuO 2-x .

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“…The H was estimated to be 445 kJmol -1 in PuO 2-x . Previous reports [14,15] gave the H of (U,Pu)O 2-x as 515 kJmol -1 . The H of PuO 2-x was 70 kJmol -1 lower than that of (U,Pu)O 2-x .…”

Section: ( )mentioning

confidence: 97%

Section: Measurement Proceduresmentioning

confidence: 98%

Section: Measurement Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Oxygen potentials of PuO_2-x

et al. 2012

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“…During the shrinkage measurement, the O/M ratio of pellet was maintained at a constant value by controlling the oxygen potential in the sintering atmosphere. The O/M ratio was determined from the oxygen potential and the temperature using the model reported by Kato et al [14,15], as shown in Table 2.…”

Section: Experimental Conditionsmentioning

confidence: 99%