Process for texturing an HTc superconductor and superconductor made by
the process
    1.
    发明授权
    Process for texturing an HTc superconductor and superconductor made by the process 失效
    用于纹理化由该工艺制成的HTC超导体和超导体的工艺

    公开(公告)号:US6013608A

    公开(公告)日:2000-01-11

    申请号:US95494

    申请日:1998-06-11

    CPC classification number: H01L39/248

    Abstract: A process for texturing an HTc superconductor of the matrix type based on silver and the superconductor material (Bi.sub.1-x Pb.sub.x).sub.2 Sr.sub.2 Ca.sub.y Cu.sub.1+y O.sub.6+2y where x.epsilon.[0; 0,4] and y.epsilon.{0, 1, 2} includes the following steps carried out in succession: raising the temperature of the superconductor from room temperature to the melting point of the superconductor material, maintaining the temperature of the superconductor constant at the melting point of the superconductor material for a relatively short period, varying the temperature of the superconductor between the melting point of the superconductor material and its synthesis temperature, maintaining the temperature of the superconductor constant at the synthesis temperature of the superconductor material for a relatively long period and reducing the temperature of the superconductor from the synthesis temperature of the superconductor material to room temperature. The step of varying the temperature of the superconductor between the melting point of the superconductor material and its synthesis temperature comprises sudden cooling of the superconductor from the melting point of the superconductor material to an end of cooling temperature less than the synthesis temperature of the superconductor material, and raising the temperature of the superconductor from the end of cooling temperature to the synthesis temperature of the superconductor material.

    Abstract translation: 基于银和超导体材料(Bi1-xPbx)2Sr2CayCu1 + yO6 + 2y的矩阵型HTC超导体的纹理化工艺,其中xε[0; 0,4]和yε{0,1,2}包括连续执行的以下步骤:将超导体的温度从室温升高到超导体材料的熔点,保持超导体的温度恒定在 超导体材料的熔点相对较短,改变了超导体材料的熔点与其合成温度之间的超导体的温度,使超导体的温度保持恒定在超导体材料的合成温度较长 并将超导体的温度从超导体材料的合成温度降低到室温。 超导体材料的熔点和合成温度之间的超导体的温度变化的步骤包括将超导体从超导体材料的熔点骤冷到冷却温度结束,超过超导体材料的合成温度 ,并将超导体的温度从冷却温度结束时提高到超导体材料的合成温度。

    Method of making a low electrical resistance connection between a metal
and a high T.sub.c superconducting ceramic
    2.
    发明授权
    Method of making a low electrical resistance connection between a metal and a high T.sub.c superconducting ceramic 失效
    金属与高温超导陶瓷之间的低电阻连接方法

    公开(公告)号:US5179075A

    公开(公告)日:1993-01-12

    申请号:US604281

    申请日:1990-10-29

    Abstract: A method of making at least one low electrical resistance connection between a metal and a high T.sub.c superconducting ceramic part, said part being made from a ceramic powder which is placed in a mold, compressed, and sintered, wherein at least one volume of silver or gold powder corresponding to the shape of said connection and situated at the desired location is placed inside said mold in juxtaposition with said ceramic powder but without being mixed therewith, after which the compression and the sintering are performed under an atmosphere containing oxygen and at a temperature that is lower than the melting temperature of silver or gold.

    Abstract translation: 一种在金属和高Tc超导陶瓷部件之间形成至少一个低电阻连接的方法,所述部件由置于模具中的陶瓷粉末制成,压缩和烧结,其中至少一个体积的银或 将与所述连接件的形状对应并且位于所需位置的金粉末放置在所述模具内并与所述陶瓷粉末并置但不与其混合,然后在含氧气氛和温度下进行压缩和烧结 即低于银或金的熔融温度。

    Method of preparing a porous metal body
    3.
    发明授权
    Method of preparing a porous metal body 失效
    多孔金属体的制备方法

    公开(公告)号:US4569821A

    公开(公告)日:1986-02-11

    申请号:US467805

    申请日:1983-02-18

    CPC classification number: H01M4/808 B22F3/1125 Y10T428/249953

    Abstract: A porous metal body, e.g. an electrode for an electric cell, is prepared using the following steps:preparing a foam by adding a surface active agent and a gelling agent to water and then foaming the mixture by stirring and/or blowing air through it;incorporating metal powder in the foam in order to obtain a suspension of the metal therein;shaping the foam with its suspension of metal, and adding a stabilizing agent thereto, said stabilizing agent being one which polymerizes on contact with water, thereby causing the shaped foam to set in shape; andheating the set foam to pyrolize the organic material therein and to sinter the metal.This method produces a more even and a more reliable pore size than has previously been possible.

    Abstract translation: 多孔金属体,例如 使用以下步骤制备电池用电极:通过向水中加入表面活性剂和胶凝剂制备泡沫,然后通过搅拌和/或吹入空气来使混合物发泡; 在泡沫中掺入金属粉末以获得金属中的悬浮液; 用金属悬浮液成形泡沫,并向其中加入稳定剂,所述稳定剂是与水接触聚合的稳定剂,从而使成形泡沫体成型; 并加热凝固的泡沫以使其中的有机材料热解并烧结金属。 该方法产生比先前可能的更均匀和更可靠的孔径。

    Method of manufacturing an encased wire of high critical temperature
superconducting material
    5.
    发明授权
    Method of manufacturing an encased wire of high critical temperature superconducting material 失效
    制造高临界温度超导材料的包线的方法

    公开(公告)号:US5594932A

    公开(公告)日:1997-01-14

    申请号:US257304

    申请日:1994-06-09

    CPC classification number: H01L39/248

    Abstract: In a method for the manufacture of an encased high critical temperature superconducting wire by the "powder in tube" method, prior to the introduction of a compressed rod of superconducting material into a silver tube, the rod is heat treated so that grains of unwanted phase are reabsorbed. The tube can be drawn more easily, and strands can be produced with a regular geometry and no defects. The wire is constituted by 15 .mu.m to 20 .mu.m thick filaments (30) with a form factor of more than 60.

    Abstract translation: 在通过“管式粉末”方法制造包封的高临界温度超导线的方法中,在将超导材料的压缩棒引入银管之前,将棒进行热处理,使得不需要的相的晶粒 被重新吸收。 管可以更容易地拉伸,并且可以以规则的几何形状生产线,并且没有缺陷。 导线由15μm至20μm厚的长丝(30)构成,形状因子大于60。

    Process for obtaining precursors for high critical temperature
superconductor ceramics comprising a first and second precipitation
    6.
    发明授权
    Process for obtaining precursors for high critical temperature superconductor ceramics comprising a first and second precipitation 失效
    用于获得包括第一次和第二次降解的高临界温度超导体陶瓷前驱体的工艺

    公开(公告)号:US5206215A

    公开(公告)日:1993-04-27

    申请号:US850926

    申请日:1992-03-13

    Abstract: A process for obtaining precursors for high critical temperature superconductor ceramics by precipitating salts which are insoluble in water comprises the following stages: A starting solution of soluble salts is prepared in which the cations are in the stoichiometric proportions of the required superconductor phase. A first full precipitation is carried out of a first series of cations at a first value of pH. The first precipitates obtained is filtered out and washed and the filtrate is retained. The pH of the filtrate is changed to a second value and the residual cations are precipitated. The second precipitate is filtered. The first and second precipitates are homogenized. The product obtained is dried, calcined, and ground.

    Abstract translation: 用于通过沉淀不溶于水的盐来获得高临界温度超导体陶瓷的前体的方法包括以下阶段:制备可溶性盐的起始溶液,其中阳离子是所需超导体相的化学计量比例。 在第一个pH值下,由第一系列阳离子进行第一次全部沉淀。 将得到的第一沉淀物过滤并洗涤并保留滤液。 将滤液的pH值变更为第二值,残留的阳离子沉淀。 过滤第二沉淀物。 将第一和第二沉淀物均化。 将得到的产物干燥,煅烧和研磨。

    Radioelectrochemical energy converter
    8.
    发明授权
    Radioelectrochemical energy converter 失效
    放射性电化学能量转换器

    公开(公告)号:US3971671A

    公开(公告)日:1976-07-27

    申请号:US508828

    申请日:1974-09-24

    CPC classification number: H01M14/00

    Abstract: The energy converter utilizes the products of radiolysis of an aqueous solution of an oxidation-reduction pair and comprises a leak-tight jacket initially filled with a pure gas which is identical with the gas evolved as a result of radiolysis. A porous electrode impregnated with the aqueous solution of the oxidation-reduction pair and specific to the reaction of this latter is placed within the jacket. The converter also comprises a gas electrode which is specific to the gas evolved as a result of radiolysis, a porous diaphragm for effecting the ionic junction between the two electrodes by gas/liquid surface conductivity and means for connecting the electrodes to an external circuit.

    Abstract translation: 能量转换器利用了氧化 - 还原对水溶液的辐射分解产物,并且包括最初填充有与作为放射分解产生的气体相同的纯气体的防漏外套。 浸渍有氧化 - 还原对的水溶液并且特别针对其的反应的多孔电极放置在护套内。 转换器还包括气体电极,其特征于由于放射分解而放出的气体,用于通过气体/液体表面电导率实现两个电极之间的离子接合的多孔膜,以及用于将电极连接到外部电路的装置。

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