کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5454428 1514162 2017 5 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله
Ab-initio molecular dynamics study of lanthanides in liquid sodium
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
Ab-initio molecular dynamics study of lanthanides in liquid sodium
چکیده انگلیسی
To mitigate the fuel cladding chemical interaction (FCCI) phenomena in liquid sodium cooled fast reactors, a fundamental understanding of the lanthanide (Ln) transport through liquid NaCs filled pores in UZr fuel is necessary. In this study, we investigate three abundant Ln fission products diffusion coefficients in liquid Na at multiple temperatures. By utilization of Ab-initio Molecular Dynamics, the Ln diffusivities are found to be in the magnitude order of liquid diffusion (10−5cm2/s) and the temperature dependence of the diffusivity for different lanthanides in liquid sodium was explored. It is also observed that dilute concentration of Pr and Nd led to a significant change in Na diffusivity. The structural and electronic properties of NaLn metallic systems have been investigated. The total coordination number shows dependence on both the temperature and the composition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 484, February 2017, Pages 98-102
نویسندگان
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