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公开(公告)号：US07286626B2
公开(公告)日：2007-10-23
申请号：US11303549
申请日：2005-12-15
IPC分类号： G21C19/00
CPC分类号： G21C19/40 , G21Y2002/201 , G21Y2004/10
摘要： A neutron absorbing coating for use on a substrate, and which provides nuclear criticality control is described and which includes a nickel, chromium, molybdenum, and gadolinium alloy having less than about 5% boron, by weight.
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公开(公告)号：US5490187A
公开(公告)日：1996-02-06
申请号：US259201
申请日：1994-06-13
CPC分类号： C22B21/06 , C22B9/02 , C22F1/04 , Y02P10/234
摘要： A method for enhancing the diffusion of gas bubbles or voids attached to impurity precipitates, and biasing their direction of migration out of the host metal (or metal alloy) by applying a temperature gradient across the host metal (or metal alloy). In the preferred embodiment of the present invention, the impurity metal is insoluble in the host metal and has a melting point lower than the melting point of the host material. Also, preferably the impurity metal is lead or indium and the host metal is aluminum or a metal alloy.
摘要翻译： 通过在主体金属（或金属合金）上施加温度梯度，增强附着在杂质析出物上的气泡或空隙扩散的方法，并将其迁移离开主体金属（或金属合金）。 在本发明的优选实施方式中，杂质金属不溶于主体金属，熔点低于主体材料的熔点。 此外，杂质金属优选为铅或铟，主体金属为铝或金属合金。
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公开(公告)号：US4768577A
公开(公告)日：1988-09-06
申请号：US916143
申请日：1986-10-07
摘要： A metal powder is produced by inert gas atomization processes. The atomizon process is regulated to provide a preselected level of inert gas alloyed in the metal.
摘要翻译： 通过惰性气体雾化法生产金属粉末。 调节雾化过程以提供合金化在金属中的预选量的惰性气体。
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公开(公告)号：US5350107A
公开(公告)日：1994-09-27
申请号：US118864
申请日：1993-09-08
CPC分类号： B22F3/23 , C22C1/0491
摘要： A method of joining two bodies together, at least one of the bodies being predominantly composed of metal, the two bodies each having a respective joint surface for joining with the joint surface of the other body, the two bodies having a respective melting point, includes the following steps: a) providing aluminum metal and iron metal on at least one of the joint surfaces of the two bodies; b) after providing the aluminum metal and iron metal on the one joint surface, positioning the joint surfaces of the two bodies in juxtaposition against one another with the aluminum and iron positioned therebetween; c) heating the aluminum and iron on the juxtaposed bodies to a temperature from greater than or equal to 600.degree. C. to less than the melting point of the lower melting point body; d) applying pressure on the juxtaposed surfaces; and e) maintaining the pressure and the temperature for a time period effective to form the aluminum and iron into an iron aluminide alloy joint which bonds the juxtaposed surfaces and correspondingly the two bodies together. The method can also effectively be used to coat a body with an iron aluminide coating.
摘要翻译： 一种将两个主体结合在一起的方法，所述主体中的至少一个主要由金属构成，所述两个主体各自具有用于与另一个主体的接合表面接合的相应接合表面，所述两个主体具有相应的熔点，包括 以下步骤：a）在两个主体的至少一个接合表面上提供铝金属和铁金属; b）在一个接合表面上提供铝金属和铁金属之后，将两个主体的接合表面彼此并置放置，铝和铁定位在它们之间; c）将并列体上的铝和铁加热至大于或等于600℃至低于下熔点体的熔点的温度; d）对并置表面施加压力; 以及e）保持压力和温度一段时间有效地将铝和铁形成铁铝合金接头，其将并置的表面和相应的两个主体结合在一起。 该方法还可以有效地用于涂覆铁铝化物涂层的主体。
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公开(公告)号：US06919576B2
公开(公告)日：2005-07-19
申请号：US10067708
申请日：2002-02-04
CPC分类号： G21C19/40 , G21Y2002/102 , G21Y2002/103 , G21Y2002/104 , G21Y2002/206 , G21Y2004/10 , G21Y2004/30
摘要： Thermal neutron absorbing composite coating materials and methods of applying such coating materials to spent nuclear fuel storage systems are provided. A composite neutron absorbing coating applied to a substrate surface includes a neutron absorbing layer overlying at least a portion of the substrate surface, and a corrosion resistant top coat layer overlying at least a portion of the neutron absorbing layer. An optional bond coat layer can be formed on the substrate surface prior to forming the neutron absorbing layer. The neutron absorbing layer can include a neutron absorbing material, such as gadolinium oxide or gadolinium phosphate, dispersed in a metal alloy matrix. The coating layers may be formed by a plasma spray process or a high velocity oxygen fuel process.
摘要翻译： 提供了热中子吸收复合涂层材料以及将这种涂覆材料应用于废核燃料储存系统的方法。 应用于基板表面的复合中子吸收涂层包括覆盖基板表面的至少一部分的中子吸收层和覆盖至少一部分中子吸收层的耐腐蚀顶涂层。 可以在形成中子吸收层之前在衬底表面上形成任选的粘结涂层。 中子吸收层可以包括分散在金属合金基体中的中子吸收材料，例如氧化钆或磷酸钆。 涂层可以通过等离子喷涂法或高速氧燃料法形成。
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公开(公告)号：US5269830A
公开(公告)日：1993-12-14
申请号：US603650
申请日：1990-10-26
申请人： Barry H. Rabin , Richard N. Wright
发明人： Barry H. Rabin , Richard N. Wright
CPC分类号： C22C1/0491 , B22F3/23
摘要： A process for synthesizing intermetallic compounds from elemental powders. The elemental powders are initially combined in a ratio which approximates the stoichiometric composition of the intermetallic compound. The mixed powders are then formed into a compact which is heat treated at a controlled rate of heating such that an exothermic reaction between the elements is initiated. The heat treatment may be performed under controlled conditions ranging from a vacuum (pressureless sintering) to compression (hot pressing) to produce a desired densification of the intermetallic compound. In a preferred form of the invention, elemental powders of Fe and Al are combined to form aluminide compounds of Fe.sub.3 Al and FeAl.
摘要翻译： 从元素粉末合成金属间化合物的方法。 元素粉末最初以接近金属间化合物的化学计量组成的比率组合。 然后将混合的粉末形成为以受控的加热速率进行热处理的致密体，从而启动元件之间的放热反应。 热处理可以在从真空（无压烧结）到压缩（热压）的受控条件下进行，以产生期望的金属间化合物的致密化。 在本发明的优选形式中，组合Fe和Al的元素粉末以形成Fe 3 Al和FeAl的铝化合物。
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7.发明授权
公开(公告)号：US5129801A
公开(公告)日：1992-07-14
申请号：US641945
申请日：1991-01-16
IPC分类号： C04B35/117
CPC分类号： C04B35/117 , Y10S425/015 , Y10S72/706
摘要： An apparatus for synthesizing a composite material such as titanium carbide and alumina from exothermic reaction of a sample followed by explosive induced consolidation of the reacted sample. The apparatus includes a lower base for holding a powdered composite sample, an igniter and igniter powder for igniting the sample to initiate an exothermic reaction and a piston for dynamically compressing the sample utilizing an explosive reaction.
摘要翻译： 一种用于由样品的放热反应合成碳化钛和氧化铝等复合材料的装置，然后爆炸引起的反应样品的固结。 该装置包括用于保持粉末状复合样品的下底座，用于点燃样品以引发放热反应的点火器和点火器粉末，以及用于利用爆炸反应动态压缩样品的活塞。
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