公开(公告)号：US10062459B2

公开(公告)日：2018-08-28

申请号：US14787986

申请日：2014-04-24

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

Inventor： Dario Pieck ,  Lionel Desgranges ,  Pierre Matheron ,  Yves Pontillon

IPC: G21C7/04 ,  C01G43/00 ,  G21C3/326

CPC classification number: G21C7/04 ,  C01G43/00 ,  C01P2002/76 ,  C01P2002/77 ,  C01P2004/82 ,  C01P2006/88 ,  G21C3/326 ,  Y02E30/38 ,  Y02E30/39

Abstract: The present invention relates to a novel material made of uranium, gadolinium and oxygen, having a crystalline phase having cubic crystallographic structure, having an atomic ratio Gd/[Gd+U] of 0.6 to 0.93, the uranium being present in an oxidation state of +IV and/or +V. The invention further relates to the use of such a material as a consumable neutron poison of a fuel element.

公开(公告)号：US20150126660A1

公开(公告)日：2015-05-07

申请号：US14399958

申请日：2013-05-07

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

Inventor： Julien Bricout ,  Meryl Bothier ,  Pierre Matheron ,  Carine Ablitzer ,  Jean-Claude Gelin

IPC: C08K3/22 ,  C08K5/01 ,  C08K5/09

CPC classification number: C08K3/22 ,  C08K3/08 ,  C08K5/01 ,  C08K5/09 ,  C08L23/02 ,  C08L23/06 ,  C08L23/12 ,  C08L91/08 ,  G21C3/42 ,  G21C3/58 ,  Y02E30/38

Abstract: A composition filled with actinide powder, comprising an organic matrix and an actinide powder or a mixture of actinide powders, comprises at least: a plasticizer comprising an alkane whose longest radical chain comprises at least a few tens of carbon atoms and is in a volume content of between 20% and 70% of the total volume of the organic compounds alone; a binder comprising at least one polyolefinic polymer and which is in a volume content of between 20% and 50% of the total volume of the organic compounds alone; a dispersant comprising a carboxylic acid or salts thereof, the volume content of which is less than 10% of the total volume of the organic compounds alone; said actinide powder or said mixture of actinide powders represent between 40% and 65% of the volume of the filled matrix.

Abstract translation: 填充有锕系粉末的组合物，其包含有机基质和锕系粉末或锕系粉末的混合物，其至少包含：包含最长自由基链包含至少几十个碳原子并且体积含量的烷烃的增塑剂 仅占有机化合物总体积的20％至70％; 包含至少一种聚烯烃聚合物的粘合剂，其体积含量为单独的有机化合物总体积的20％至50％; 包含羧酸或其盐的分散剂，其体积含量小于单独的有机化合物总体积的10％; 所述锕系粉末或所述锕系粉末的混合物占填充基体体积的40％至65％。

公开(公告)号：US09394422B2

公开(公告)日：2016-07-19

申请号：US14399958

申请日：2013-05-07

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

Inventor： Julien Bricout ,  Meryl Brothier ,  Pierre Matheron ,  Carine Ablitzer ,  Jean-Claude Gelin

IPC: C08K3/22 ,  G21C3/42 ,  C08L91/08 ,  G21C3/58 ,  C08K5/01 ,  C08K5/09

CPC classification number: C08K3/22 ,  C08K3/08 ,  C08K5/01 ,  C08K5/09 ,  C08L23/02 ,  C08L23/06 ,  C08L23/12 ,  C08L91/08 ,  G21C3/42 ,  G21C3/58 ,  Y02E30/38

Abstract: A composition filled with actinide powder, comprising an organic matrix and an actinide powder or a mixture of actinide powders, comprises at least: a plasticizer comprising an alkane whose longest radical chain comprises at least a few tens of carbon atoms and is in a volume content of between 20% and 70% of the total volume of the organic compounds alone; a binder comprising at least one polyolefinic polymer and which is in a volume content of between 20% and 50% of the total volume of the organic compounds alone; a dispersant comprising a carboxylic acid or salts thereof, the volume content of which is less than 10% of the total volume of the organic compounds alone; said actinide powder or said mixture of actinide powders represent between 40% and 65% of the volume of the filled matrix.

Abstract translation: 填充有锕系粉末的组合物，其包含有机基质和锕系粉末或锕系粉末的混合物，其至少包含：包含最长自由基链包含至少几十个碳原子并且体积含量的烷烃的增塑剂 仅占有机化合物总体积的20％至70％; 包含至少一种聚烯烃聚合物的粘合剂，其体积含量为单独的有机化合物总体积的20％至50％; 包含羧酸或其盐的分散剂，其体积含量小于单独的有机化合物总体积的10％; 所述锕系粉末或所述锕系粉末的混合物占填充基体体积的40％至65％。

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。