A calorimetric study of high temperature phase stability in Fe–U alloys

Kumar, Arun; Raju, S.; Vijayalakshmi, M.

doi:10.1016/j.jnucmat.2012.08.042

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Cited by 6 publications

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“…Assuming standard isotopic abundance of U, U 6 Fe is 96.24% U by mass. This is slightly higher than the highest entry in Table 3 of Reference [16] (95%), but linear extrapolation based on the 90%→95% shift gives 15.95 kJ/(mol atoms). Although values for ∆H U fus drawn from a simple web search vary widely, we have adopted the "selected value" from Table 29 of Reference [9]; this figure is quite close to the mean of the four others listed there.…”

Section: ∆Hmentioning

confidence: 61%

The Melt Enthalpy of Pu6Fe

2021

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Schwartz, et al., previously reported calorimetry measurements conducted on a Pu-Pu6Fe mixture, from which they derived a melt enthalpy of 31.2 J/g (46.6 kJ/mol) for Pu6Fe. This was the first—and remains the only—such value to appear in the literature. We reanalyze those results in light of two contributions to the measured heat flow not considered in the original report: the melt enthalpy of the excess Pu and the subsequent heating of the liquid mixture. These corrections yield a revised value of 24.4 J/g (36.3 kJ/mol), which we show to be consistent with the melt enthalpy of U6Fe.

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Section: ∆Hmentioning

confidence: 61%