Journal article Open Access
Tosolin, A.; P. Soucek; O. Beneš; J.-F. Vigier; L. Luzzi; R.J.M. Konings
PuF3 was synthetized by hydro-fluorination of PuO2 and subsequent reduction of the product by hydrogenation.
The obtained PuF3 was analysed by X-Ray Diffraction (XRD) and found phase-pure. High
purity was also confirmed by the melting point analysis using Differential Scanning Calorimetry (DSC).
PuF3 was then used for thermodynamic assessment of the PuF3-LiF system. Phase equilibrium points and
enthalpy of fusion of the eutectic composition were measured by DSC. XRD analyses of selected samples
after DSC measurement confirm that after solidification from the liquid, the system returns to a mixture
of LiF and PuF3.