Linear thermal expansion, thermal diffusivity and melting temperature of Am-MOX and Np-MOX

Prieur, D.; Belin, R. C.; Manara, D.; Staicu, D.; Richaud, J.-C.; Vigier, J.-F.; Scheinost, A. C.; Somers, J.; Martin, P.

doi:10.1016/j.jallcom.2015.03.032

Linear thermal expansion, thermal diffusivity and melting temperature of Am-MOX and Np-MOX

Prieur, D.; Belin, R. C.; Manara, D.; Staicu, D.; Richaud, J.-C.; Vigier, J.-F.; Scheinost, A. C.; Somers, J.; Martin, P.

The thermal properties of Np- and Am-MOX solid solutions were investigated. The linear thermal expansion was investigated with high temperature X-ray diffraction from room temperature to 1973 K. No significant difference was observed between the Np and the Am doped MOX. The thermal conductivity of Am-MOX is about 10% higher than that of Np-MOX. The melting temperatures of Np-MOX and Am-MOX were measured using a laser heating setup and are equal to 3020 ± 30 K and 3005 ± 30 K, respectively.

Keywords: Transmutation; minor actinides; MOX; XANES; XRD; thermal conductivity; laser melting

Involved research facilities

Rossendorf Beamline at ESRF DOI: 10.1107/S1600577520014265

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DOI: 10.1107/S1600577520014265 is cited by this (Id 21200) publication

Journal of Alloys and Compounds 637(2015), 326-331
DOI: 10.1016/j.jallcom.2015.03.032
Cited 9 times in Scopus

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