Phase relations in the Fe-Pu-U ternary system |
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Authors: | Kinya Nakamura Masaki Kurata Takanari Ogata Takeshi Yokoo Michael A. Mignanelli |
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Affiliation: | (1) Central Research Institute of Electric Power Industry, Komaeshi, 201-8511 Tokyo, Japan;(2) AEA Technology plc, OX11 0QJ Didcot, Oxfordshire, United Kingdom |
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Abstract: | An isothermal section of the Fe-Pu-U ternary system at 650 °C was assessed in a previous study. In the present study, the predictions of the phase relations in the Fe-Pu-U system to higher and lower temperatures were performed by applying the interaction parameters determined at 650 °C. Differential thermal analysis (DTA) for the Fe-Pu-U alloys was also carried out to confirm the phase relations in the temperature region of 500 to 800 °C. Both results agreed well. On the basis of the predicted ternary phase diagram, the phase relations for a region surrounded by Fe2Pu, Fe2U, U, and Pu were described by a reaction scheme and a projection of the liquidus surface. |
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