公开(公告)号：US09340845B2

公开(公告)日：2016-05-17

申请号：US12809997

申请日：2008-12-15

申请人： Dominique Hertz

发明人： Dominique Hertz

IPC分类号： C21D10/00 ,  C22C16/00 ,  C21D7/06 ,  C22F1/00 ,  G21C3/20 ,  G21C7/10 ,  G21C21/02 ,  G21C21/18 ,  C22C28/00

CPC分类号： C21D7/06 ,  C21D10/005 ,  C22C16/00 ,  C22F1/00 ,  G21C3/20 ,  G21C7/10 ,  G21C21/02 ,  G21C21/18 ,  G21Y2002/103 ,  G21Y2004/40 ,  Y02E30/39

摘要： A method for surface processing at least a portion of a component of zirconium or hafnium alloy, including at least one operation of nanostructuring a surface layer of the alloy so as to confer on the alloy over a thickness of at least 5 μm a grain size which is less than or equal to 100 nm, the nanostructuring being carried out at a temperature which is less than or equal to that of the last thermal processing operation to which the component was previously subjected during its production.Component of zirconium or hafnium alloy processed in this manner.

摘要翻译： 一种表面处理锆或铪合金的组分的至少一部分的方法，包括至少一种使合金的表面层纳米结构化的操作，以使合金的厚度至少为5μm，晶粒尺寸为 小于或等于100nm，纳米结构在小于或等于组件在其生产过程中所经受的最后热处理操作的温度下进行。 以这种方式处理的锆或铪合金的组分。

公开(公告)号：US20140247915A1

公开(公告)日：2014-09-04

申请号：US14348397

申请日：2012-09-28

申请人： AREVA NP

发明人： Dominique Hertz

IPC分类号： C21D1/72 ,  G21C3/07 ,  G21C7/117 ,  C23C8/32

CPC分类号： C21D1/72 ,  C21D6/004 ,  C21D8/0257 ,  C21D9/08 ,  C23C8/02 ,  C23C8/22 ,  C23C8/26 ,  C23C8/32 ,  C23C8/38 ,  G21C3/07 ,  G21C7/10 ,  G21C7/117 ,  G21C21/18 ,  Y02E30/39

摘要： A method for producing a wear-resistant and corrosion-resistant stainless steel part for a nuclear reactor is provided. This method comprises steps of providing a blank in stainless steel; shaping the blank; finishing the blank to form the part in stainless steel, the finishing step allowing the prevented onset or the removal of work hardness on the outer surface of the part; hardening the outer surface of the part via diffusion of one or more atomic species.

摘要翻译： 提供了一种用于生产用于核反应堆的耐磨和耐腐蚀的不锈钢部件的方法。 该方法包括以不锈钢提供坯料的步骤; 塑造空白 整理坯料以形成不锈钢部件，精加工步骤允许在零件的外表面上防止起作用或去除加工硬度; 通过一种或多种原子物质的扩散来硬化该部件的外表面。

公开(公告)号：US06246740B1

公开(公告)日：2001-06-12

申请号：US09172194

申请日：1998-10-14

申请人： Tadashi Maruyama ,  Shoji Onose ,  Shiro Mitsuno

发明人： Tadashi Maruyama ,  Shoji Onose ,  Shiro Mitsuno

IPC分类号： G21C710

CPC分类号： C04B35/571 ,  C04B35/806 ,  C04B38/0074 ,  D04B1/14 ,  G21C7/10 ,  G21C21/18 ,  G21Y2002/10 ,  G21Y2002/206 ,  G21Y2002/303 ,  G21Y2004/10 ,  G21Y2004/30 ,  G21Y2004/40 ,  Y02E30/39 ,  Y10T428/1314 ,  C04B35/565

摘要： A cylindrical thin-wall sleeve including an SiC fiber-reinforced SiC composite material (SiC/SiC), which has a porosity of 40% or less and a wall thickness of 5 mm or less.

摘要翻译： 包括SiC纤维增强SiC复合材料（SiC / SiC）的圆柱形薄壁套筒，其孔隙率为40％以下，壁厚为5mm以下。

公开(公告)号：USH897H

公开(公告)日：1991-03-05

申请号：US406006

申请日：1989-09-12

申请人： Thomas C. Wiencek ,  Robert F. Domagala ,  Henry Thresh

发明人： Thomas C. Wiencek ,  Robert F. Domagala ,  Henry Thresh

IPC分类号： G21C21/18 ,  G21F1/08 ,  G21K1/10

CPC分类号： G21K1/10 ,  G21C21/18 ,  G21F1/08

摘要： A composite, copper clad neutron absorbing material is comprised of copper powder and boron powder enriched with boron 10. The boron 10 content can reach over 30 percent by volume, permitting a very high level of neutron absorption. The copper clad product is also capable of being reduced to a thickness of 0.05 to 0.06 inches and curved to a radius of 2 to 3 inches, and can resist temperatures of 900.degree. C. A method of preparing the material includes the steps of compacting a boron-copper powder mixture and placing it in a copper cladding, restraining the clad assembly in a steel frame while it is hot rolled at 900.degree. C. with cross rolling, and removing the steel frame and further rolling the clad assembly at 650.degree. C. An additional sheet of copper can be soldered onto the clad assembly so that the finished sheet can be cold formed into curved shapes.

公开(公告)号：US4647405A

公开(公告)日：1987-03-03

申请号：US529303

申请日：1983-09-03

申请人： Pierre E. Debely

发明人： Pierre E. Debely

IPC分类号： C04B35/111 ,  C04B35/58 ,  C04B35/65 ,  C25C3/08 ,  G21C21/18 ,  C04B35/10

CPC分类号： C04B35/117 ,  C04B35/645 ,  C04B35/651 ,  C25C3/08 ,  G21C21/18

摘要： A dense essentially non-porous composite ceramic material of a diboride of group IVa metal, preferably titanium, and alumina in a 3:5 mole ratio has a macroscopically uniform structure made up of non-uniformly dispersed agglomerates of alumina of random shapes and dimensions and a fibrous sponge-like electrically conductive structure of submicronic grains of the group IVa metal boride in intimate wetting contact with the alumina agglomerates. The material is made by reaction hot pressing of coarse grain precursor powders.

摘要翻译： Ⅳa族金属的二硼化物，优选为钛，氧化铝为3：5摩尔比的致密的基本上无孔的复合陶瓷材料具有由不均匀分散的随机形状和尺寸的氧化铝附聚物组成的宏观均匀结构， 第Ⅳa族金属硼化物的亚微米晶粒的纤维状海绵状导电结构与氧化铝附聚物紧密地润湿接触。 该材料通过粗粒前驱体粉末的反应热压制成。

公开(公告)号：US4566989A

公开(公告)日：1986-01-28

申请号：US352731

申请日：1982-02-26

申请人： Kenneth C. Radford ,  William G. Carlson

发明人： Kenneth C. Radford ,  William G. Carlson

IPC分类号： C04B35/10 ,  C04B35/111 ,  C04B35/51 ,  G21C7/04 ,  G21C7/24 ,  G21C21/18

CPC分类号： C04B35/111 ,  G21C21/18

摘要： A neutron-absorber body for use in burnable poison rods in a nuclear reactor. The body is composed of a matrix of Al.sub.2 O.sub.3 containing B.sub.4 C, the neutron absorber. Areas of high density polycrystalline Al.sub.2 O.sub.3 particles are predominantly encircled by pores in some of which there are B.sub.4 C particles. This body is produced by initially spray drying a slurry of Al.sub.2 O.sub.3 powder to which a binder has been added. The powder of agglomerated spheres of the Al.sub.2 O.sub.3 with the binder are dry mixed with B.sub.4 C powder. The mixed powder is formed into a green body by isostatic pressure and the green body is sintered. The sintered body is processed to form the neutron-absorber body. In this case the B.sub.4 C particles are separate from the spheres resulting from the spray drying instead of being embedded in the sphere.

摘要翻译： 用于核反应堆中的可燃毒物棒的中子吸收体。 身体由含有B4C，中子吸收剂的Al2O3基体组成。 高密度多晶Al2O3颗粒的区域主要被孔隙包围，其中一些有B4C颗粒。 该主体通过首先喷雾干燥已经加入粘合剂的Al 2 O 3粉末的浆料来生产。 将具有粘合剂的Al 2 O 3的团聚球的粉末与B4C粉末干混。 混合粉末通过等静压力形成生坯，并将生坯烧结。 将烧结体加工成中子吸收体。 在这种情况下，B4C颗粒与喷雾干燥而不是嵌入球体中的球体分开。

公开(公告)号：US3985514A

公开(公告)日：1976-10-12

申请号：US572239

申请日：1975-04-28

申请人： Gary E. Miller

发明人： Gary E. Miller

IPC分类号： B21B3/02 ,  C21D1/68 ,  C21D8/02 ,  G21C21/18 ,  B32B15/18

CPC分类号： B21B3/02 ,  C21D1/68 ,  C21D8/0205 ,  G21C21/18 ,  Y10T428/12972

摘要： This invention relates to a composite plate shaped billet, useful in the fabrication of nuclear control rods, which comprises a core of stainless steel containing about 2% Boron 10, a thin coating of zirconia on the surfaces of said core, said core and said zirconia coating being completely encased in a jacket of mild steel, said composite having been hot rolled between about 1075.degree. and about 1165.degree.C.

摘要翻译： 本发明涉及一种可用于制造核控制棒的复合板状坯料，其包括含有约2％硼10的不锈钢芯，所述芯表面上的氧化锆薄层，所述芯和所述氧化锆 涂层完全包裹在软钢外套中，所述复合材料已经在约1075℃和约1165℃之间热轧。

公开(公告)号：US3898309A

公开(公告)日：1975-08-05

申请号：US35939773

申请日：1973-05-11

申请人： US ENERGY

发明人： PASTO ARVID E

IPC分类号： C04B35/50 ,  C04B35/51 ,  C04B35/645 ,  G21C21/18 ,  G21C21/00

CPC分类号： C04B35/645 ,  C04B35/50 ,  C04B35/51 ,  G21C21/18

摘要： A process for low temperature sintering of rare earth and actinide oxides which have a cubic to monoclinic transformation by heating a powder compact at a temperature just above the transformation temperature.

摘要翻译： 一种低温烧结稀土和锕系氧化物的方法，其通过在高于转变温度的温度下加热粉末压块而具有立方到单斜相变。

公开(公告)号：US3652745A

公开(公告)日：1972-03-28

申请号：US3652745D

申请日：1969-07-30

申请人： ISOTOPES INC

发明人： STRAZZA NEAL P

IPC分类号： B22F3/11 ,  G21C5/12 ,  G21C21/18 ,  G21C21/00 ,  G21C21/02

CPC分类号： G21C21/18 ,  B22F3/1143 ,  G21C5/12 ,  Y02E30/40

摘要： IN THE FABRICATION OF POROUS METAL BODIES, AND IN PARTICULAR, CONTROL BODIES FOR NUCLEAR REACTORS WITH OR WITHOUT INTEGRAL FUEL MATERIAL, BY POWDER METALLURGICAL TECHNIQUES, THE UTILIZATION OF A METAL HYDRIDE BINDER IMPARTS GREEN STRENGTH OT THE BODY FORMED PRIOR TO SINTERING AND RESULTS IN A SINTERED BODY WITH SMOOTH, STRONG BONDS CONNECTING THE POWDER PARTICLES AND WITH CLEAN, UNCONTAMINATED INTERIOR SURFACES.

公开(公告)号：US09914986B2

公开(公告)日：2018-03-13

申请号：US14348378

申请日：2012-09-28

申请人： AREVA NP

发明人： Dominique Hertz

IPC分类号： G21C3/06 ,  G21C7/10 ,  C21D1/72 ,  C21D6/00 ,  C21D9/08 ,  C21D9/14 ,  C23C8/02 ,  C23C8/32 ,  C23C8/80 ,  G21C21/18 ,  C23C8/22 ,  C23C8/38 ,  G21C7/06 ,  C21D8/10

CPC分类号： C21D1/72 ,  C21D6/004 ,  C21D8/10 ,  C21D8/105 ,  C21D9/08 ,  C21D9/085 ,  C21D9/14 ,  C23C8/02 ,  C23C8/22 ,  C23C8/32 ,  C23C8/38 ,  C23C8/80 ,  G21C7/06 ,  G21C7/10 ,  G21C21/18 ,  Y02E30/39

摘要： A method for producing a wear-resistant and corrosion-resistant stainless steel part for a nuclear reactor is provided. This method includes steps of providing a tubular blank in austenitic stainless steel whose carbon content is equal to or lower than 0.03% by weight; shaping the blank; finishing the blank to form the cladding; hardening the outer surface of the cladding by diffusing one or more atomic species; the blank, before the providing step or during the shaping or finishing step, being subjected to at least one hyper quenching with sub-steps of: heating the blank to a sufficient temperature and for a sufficient time to solubilize any precipitates present; quenching the blank at a rate allowing the austenitic structure to be maintained in a metastable state at ambient temperature and free of precipitates.