Next generation safety analysis methods for SFRs (8) analyses of eutectics between fuel and steel in metal fuel with FPMD code VASP

Masashi Himi, Yuichi Yamamoto, Yasuo Nagamine, Noriyuki Shirakawa, Yasushi Uehara, Tatsumi Arima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

There are two main objectives in this study. One is to estimate atomic diffusion coefficients in eutectic reaction between metal fuel and cladding materials in order to establish the atomic diffusion model for the COMPASS code. The other is to estimate their material properties such as Young's modulus in high temperature up to near melting points in core disruptive accidents (CDAs) in Sodium-cooled Fast Reactors (SFRs). We used the first principle molecular dynamics (FPMD) code VASP to realize the two objectives. We tried to understand the initiation mechanism of eutectics based on change of electronic state energy accompanied by change of Kohn-Sham energy, including phonon effect. In this project [1], three methods, phase diagram calculation (CALPHAD), classical molecular dynamics (CMD), and FPMD, are employed to understand the mechanism of eutectics and to introduce dynamic characteristics in eutectic phenomena into the COMPASS code.

Original languageEnglish
Title of host publicationProceedings of the 17th International Conference on Nuclear Engineering 2009, ICONE17
Pages495-504
Number of pages10
DOIs
Publication statusPublished - Dec 1 2009
Event17th International Conference on Nuclear Engineering, ICONE17 - Brussels, Belgium
Duration: Jul 12 2009Jul 16 2009

Publication series

NameInternational Conference on Nuclear Engineering, Proceedings, ICONE
Volume5

Other

Other17th International Conference on Nuclear Engineering, ICONE17
CountryBelgium
CityBrussels
Period7/12/097/16/09

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering

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