公开(公告)号：US5268947A

公开(公告)日：1993-12-07

申请号：US962735

申请日：1992-10-19

申请人： Bernard Bastide ,  Bertrand Morel ,  Michel Allibert

发明人： Bernard Bastide ,  Bertrand Morel ,  Michel Allibert

IPC分类号： G21C3/17 ,  G21C3/20 ,  G21C3/62 ,  G21C3/00

CPC分类号： G21C3/20 ,  G21C3/17 ,  G21C3/623 ,  G21Y2002/201 ,  G21Y2002/303 ,  G21Y2002/50 ,  G21Y2004/10 ,  Y02E30/38

摘要： A nuclear fuel element comprising sintered pellets based on uraniferous oxide which are surrounded by a metallic sheath and permitting trapping of the fission products which appear in the course of irradiation characterized in that the pellets contain or are coated with or that the sheath is internally coated with an agent for trapping said fission products based on mixed metallic oxide comprising SiO.sub.2 and one at least of the oxides ZrO.sub.2 or CeO.sub.2.

摘要翻译： 一种核燃料元件，其包含基于氧化铀的烧结颗粒，其被金属护套包围并且允许捕获在辐照过程中出现的裂变产物，其特征在于，所述颗粒包含或涂覆或者所述护套在内部被涂覆 基于包含SiO 2和至少一种氧化物ZrO 2或CeO 2的混合金属氧化物捕获所述裂变产物的试剂。

公开(公告)号：US5391347A

公开(公告)日：1995-02-21

申请号：US180478

申请日：1994-01-12

申请人： Bernard Bastide ,  Antoine Floreancig

发明人： Bernard Bastide ,  Antoine Floreancig

IPC分类号： C01G43/01 ,  C01G43/025 ,  C04B35/51 ,  G21C3/62 ,  B22F1/00 ,  C01G56/00

CPC分类号： C04B35/51 ,  C01G43/01 ,  C01G43/025 ,  G21C3/623 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/37 ,  C01P2006/80 ,  Y02E30/38

摘要： Process for obtaining fritted oxide pellets of the MxOy type for nuclear fuels from solutions of soluble salts of the element or elements M, involving stage of precipitating the elements M by hydrogen peroxide in an acid medium. During this precipitation, there is an instantaneous dispersion of one of the reagents (solution of salts or peroxide) in the other, in order to obtain a homogenous mixture and an also instantaneous precipitation of the nuclei in a continuous liquid phase confined in an enclosure having minimum dimensions, the mother liquors being rapidly exhausted. The process makes it possible to obtain sintered pellets whose density exceeds 96% of the theoretical density.

摘要翻译： 从元素M的可溶性盐溶液中获得MxOy型核燃料的烧结氧化物颗粒的方法，涉及在酸性介质中通过过氧化氢沉淀元素M的阶段。 在该沉淀期间，其中一种试剂（盐或过氧化物溶液）的瞬时分散在另一种中，以获得均匀的混合物，并且在限制在具有 最小尺寸，母液迅速耗尽。 该方法可以获得密度超过理论密度的96％的烧结颗粒。