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    OXIDE NUCLEAR FUEL WHICH IS A REGULATOR OF CORROSIVE FISSION PRODUCTS, ADDITIVATED WITH AT LEAST ONE OXIDATION-REDUCTION SYSTEM
    1.
    发明申请
    OXIDE NUCLEAR FUEL WHICH IS A REGULATOR OF CORROSIVE FISSION PRODUCTS, ADDITIVATED WITH AT LEAST ONE OXIDATION-REDUCTION SYSTEM 审中-公开
    氧化物核燃料，是一种氧化还原系统加入的腐蚀性产品的调节剂

    公开(公告)号：US20150302942A1

    公开(公告)日：2015-10-22

    申请号：US14441113

    申请日：2013-11-08

    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

    Inventor： Chantal Riglet-Martial ,  Méryl Brothier ,  Pierre Matheron ,  Vanessa Pennisi ,  Virginie Basini

    IPC: G21C3/62 ,  G21C21/02 ,  G21C3/06

    CPC classification number: G21C3/623 ,  G21C3/047 ,  G21C3/06 ,  G21C3/17 ,  G21C21/02 ,  Y02E30/38

    Abstract: A supplemented nuclear fuel comprises a nuclear fuel of oxide type which generates fission products such as tellurium, cesium and iodine, which generate via chemical interaction species that are potentially corrosive, supplemented with at least one redox system comprising a first and second species comprising a common element having a different degree of oxidation in each of the two species, the system having an oxygen potential curve as a function of the temperature that is within an interval delimited by: an upper limit: the curve of coexistence of the chemical species I2Te (g) and CsI (g) at the same partial pressure imposed by the equilibrium between CsI (l) and CsI (g), approximated between 1000° C. and 2000° C. by a straight line segment whose ends PO2/11 and PO2/12 have the coordinates: PO2/11 (T=1000° C.)≈−370 kJ/molO2 and PO2/12 (T=2000° C.)≈−230 kJ/molO2; and a lower limit: the curve of oxygen potential of the system (Cs2MoO4/Cs+Mo) approximated between 1000° C. and 2000° C. by a straight line segment whose ends PO2/21 and PO2/22 have the coordinates: PO2/21 (T=1000° C.)≈−530 kJ/molO2 and PO2/22 (T=2000° C.)≈−390 kJ/molO2.

    Abstract translation: 补充的核燃料包括氧化物类型的核燃料，其产生裂变产物如碲，铯和碘，其通过具有潜在腐蚀性的化学相互作用物质产生，补充有至少一种氧化还原体系，所述氧化还原体系包含第一和第二物质，其包含共同的 元素在两种物种中的每一种具有不同程度的氧化，该系统具有作为在由以下限定的区间内的温度的函数的氧势曲线：上限：化学物质I2Te（g ）和CsI（g）在CsI（1）和CsI（g）之间的平衡下施加的相同分压下，通过直线段近似于1000℃和2000℃之间的直线段，其末端PO2 / 11和PO2 / 12具有坐标：PO2 / 11（T = 1000℃）≈-370kJ / molO2和PO2 / 12（T = 2000℃）≈-230kJ / molO2; 和下限：系统的氧势（Cs2MoO4 / Cs + Mo）的曲线在1000℃和2000℃之间通过端部PO2 / 21和PO2 / 22的坐标为PO2的直线段近似 / 21（T = 1000℃）≈-530kJ / molO2和PO2 / 22（T = 2000℃）≈-390kJ / molO2。

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