کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1609720 | 1516264 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal conductivity measurement of (Pu1âxAmx)O2 (x = 0.028, 0.072)
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
The thermal diffusivity of (Pu,Am)O2 was measured by the laser flash method in the temperature range from 750Â K to 1450Â K, and the thermal conductivity was estimated from the measured thermal diffusivity, the bulk density and the heat capacity obtained from the Kopp-Neumann rule. In the measurements up to 1250Â K, the O/M ratio of the specimens was kept almost constant at 2, and it could be concluded that the thermal conductivity of stoichiometric (Pu,Am)O2 with a small Am content was insensitive to Am content. However, the O/M ratio of the specimen with 7.2Â mol% Am content might be reduced at high temperatures, and it might lead to a small decrease in thermal conductivity. These Am content dependences of thermal conductivity were well explained by the phonon scattering model for thermal resistivity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 629, 25 April 2015, Pages 92-97
Journal: Journal of Alloys and Compounds - Volume 629, 25 April 2015, Pages 92-97
نویسندگان
Taku Matsumoto, Tatsumi Arima, Yaohiro Inagaki, Kazuya Idemitsu, Masato Kato, Kyoichi Morimoto, Masahiro Ogasawara,