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Thermal Properties of Simulated High Burn up Nitride Fuels and Nitride ADS Targets

Published online by Cambridge University Press:  01 February 2011

Masayoshi Uno ,
Ken Kurosaki ,
Shinsuke Yamanaka  and
Kazuo Minato
Masayoshi Uno
Affiliation:
uno@see.eng.osaka-u.ac.jp, Osaka University, Sustainable Energy and Environmental Engineering, Yamadaoka 2-1, Suita, 602-0915, Japan, +81-6-6879-7906, +81-6-6879-7906
Ken Kurosaki
Affiliation:
kurosaki@see.eng.osaka-u.ac.jp, Osaka University, Division of Sustainable Energy and Environmental Engineering, Yamadaoka 2-1, Suita.Osaka, 565-0871, Japan
Shinsuke Yamanaka
Affiliation:
Yamanaka@see.eng.osaka-u.ac.jp, Osaka University, Division of Sustainable Energy and Environmental Engineering, Yamadaoka 2-1, Suita.Osaka, 565-0871, Japan
Kazuo Minato
Affiliation:
minato.kazuo@jaea.go.jp, Japan Atomic Energy Agency, Tokai-Mura, Naka-gun, Ibaraki, 319-1195, Japan
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Abstract

We made various nitride fuels containing simulated FP elements and evaluated the effect of these FP elements on the properties of the nitrides. For Uranium Neodymium nitride solid solution the lattice parameter increased with Nd content, thermal expansion coefficient did not change and thermal conductivity decreased with Nd content. The thermal expansion for Pd containing UN, where Pd precipitated as UPd3 in the grain boundaries of UN, was nearly the same as that of UN and the thermal conductivity for Pd containing in the UN matrix decreased with Pd content. For Mo containing UN Mo precipitated as Mo metal isotropically. Both the thermal expansion and thermal conductivity did not vary with Mo content This might result from the low Mo contents at these simulated burnups.

Keywords

Unitridethermal conductivity
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1043: Symposium T – Materials Innovations for Next-Generation Nuclear Energy , 2007 , 1043-T13-03
Copyright
Copyright © Materials Research Society 2008

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