Abstract
The oxygen potentials of (Pu0.928Am0.072)O2-x were measured as a function of oxygen to metal ratio (O/M) in the temperature range from 1473 to 1873 K by the gas equilibrium method using thermogravimetry. The measured data were about 200 kJ/mol higher in the O/M ratio range from 2.00 to 1.96 and about 50 kJ/mol higher in the reducing region (below O/M ratio = 1.94) compared with those of PuO2-x. The measured oxygen potentials were analyzed by the point defect chemistry method. From this analysis, the oxygen potential of (Pu0.928Am0.072)O2-x was represented as a function of O/M ratio and temperature and calculated results were consistent with the measured data.
| Original language | English |
|---|---|
| Pages (from-to) | 1296-1302 |
| Number of pages | 7 |
| Journal | Journal of Nuclear Science and Technology |
| Volume | 52 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - Oct 3 2015 |
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All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Nuclear Energy and Engineering
Cite this
Oxygen potential measurement of (Pu 0.928Am0.072)O 2-x at high temperatures. / Matsumoto, Taku; Arima, Tatsumi; Inagaki, Yaohiro; Idemitsu, Kazuya; Kato, Masato; Morimoto, Kyoichi; Sunaoshi, Takeo.
In: Journal of Nuclear Science and Technology, Vol. 52, No. 10, 03.10.2015, p. 1296-1302.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Oxygen potential measurement of (Pu 0.928Am0.072)O 2-x at high temperatures
AU - Matsumoto, Taku
AU - Arima, Tatsumi
AU - Inagaki, Yaohiro
AU - Idemitsu, Kazuya
AU - Kato, Masato
AU - Morimoto, Kyoichi
AU - Sunaoshi, Takeo
PY - 2015/10/3
Y1 - 2015/10/3
N2 - The oxygen potentials of (Pu0.928Am0.072)O2-x were measured as a function of oxygen to metal ratio (O/M) in the temperature range from 1473 to 1873 K by the gas equilibrium method using thermogravimetry. The measured data were about 200 kJ/mol higher in the O/M ratio range from 2.00 to 1.96 and about 50 kJ/mol higher in the reducing region (below O/M ratio = 1.94) compared with those of PuO2-x. The measured oxygen potentials were analyzed by the point defect chemistry method. From this analysis, the oxygen potential of (Pu0.928Am0.072)O2-x was represented as a function of O/M ratio and temperature and calculated results were consistent with the measured data.
AB - The oxygen potentials of (Pu0.928Am0.072)O2-x were measured as a function of oxygen to metal ratio (O/M) in the temperature range from 1473 to 1873 K by the gas equilibrium method using thermogravimetry. The measured data were about 200 kJ/mol higher in the O/M ratio range from 2.00 to 1.96 and about 50 kJ/mol higher in the reducing region (below O/M ratio = 1.94) compared with those of PuO2-x. The measured oxygen potentials were analyzed by the point defect chemistry method. From this analysis, the oxygen potential of (Pu0.928Am0.072)O2-x was represented as a function of O/M ratio and temperature and calculated results were consistent with the measured data.
UR - http://www.scopus.com/inward/record.url?scp=84939467781&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84939467781&partnerID=8YFLogxK
U2 - 10.1080/00223131.2014.986243
DO - 10.1080/00223131.2014.986243
M3 - Article
VL - 52
SP - 1296
EP - 1302
JO - Journal of Nuclear Science and Technology
JF - Journal of Nuclear Science and Technology
SN - 0022-3131
IS - 10
ER -