کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1569974 1514271 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Derivation of analytical expressions for the network dislocation density, change in lattice parameter, and for the recrystallized grain size in nuclear fuels
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
Derivation of analytical expressions for the network dislocation density, change in lattice parameter, and for the recrystallized grain size in nuclear fuels
چکیده انگلیسی

At relatively high burn-up, both UO2 and U–10Mo nuclear fuels undergo irradiation-induced recrystallization wherein grains of micron size transform to grains of submicron size. Previously, expressions have been derived for the initiation, and for the progression of recrystallization as a function of fission density, fission rate, fuel temperature, and as-fabricated grain size. Here, analytical expressions are derived for the network dislocation density, change in lattice parameter, and the size of the recrystallized grains. The basic premise of the theory presented in this work is that irradiation-induced recrystallization is driven by the behavior of interstitial loops. It is demonstrated that these phenomena can be simulated in both UO2 and in U–xMo with the same theory, albeit with various property differences. Results of the calculations are compared with available data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 349, Issues 1–2, 15 February 2006, Pages 150–159
نویسندگان
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