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    Strongly-linked oxide superconductor and a method of its manufacture
    52.
    发明授权
    Strongly-linked oxide superconductor and a method of its manufacture 失效
    强连接氧化物超导体及其制造方法

    公开(公告)号：US5683969A

    公开(公告)日：1997-11-04

    申请号：US881675

    申请日：1992-05-12

    申请人： Lawrence J. Masur ,  Eric R. Podtburg

    发明人： Lawrence J. Masur ,  Eric R. Podtburg

    IPC分类号： C01G1/00 ,  C01G3/00 ,  C04B35/45 ,  C04B35/65 ,  H01B13/00 ,  H01L39/12 ,  H01L39/24

    CPC分类号： C04B35/65 ,  C04B35/45 ,  H01L39/2419 ,  H01L39/2477 ,  Y10S505/704 ,  Y10S505/736 ,  Y10S505/74 ,  Y10S505/742 ,  Y10S505/776 ,  Y10S505/78 ,  Y10S505/813 ,  Y10T29/49014

    摘要： A strongly-linked polycrystalline oxide superconductor article includes an oxide superconductor selected from the group consisting 124-type and 247-type oxide superconductors having fine, highly aligned oxide superconductor grains less than 50 .mu.m along a longest dimension. The oxide superconductor article has at least a 25% retention of critical current density in a 0.1 Tesla field. A method for preparing a strongly-linked oxide superconductor includes shaping a finely divided metallic precursor of an oxide superconductor; oxidizing the finely divided metallic precursor to produce a finely divided sub-oxide species while avoiding conversion of an appreciable amount of the sub-oxide species into the oxide superconductor; annealing and deforming the article, in either order, the annealing carried out at a temperature and for a time sufficient to convert some of the sub-oxide species into fine grains of the oxide superconductor thereby forming a mixture of sub-oxide species and oxide superconductor and the deformation carried out such that the fine grains of oxide superconductor are rotated into alignment parallel to an intended current carrying direction of the article without fracturing or pulverization of the oxide superconductor grains; alternating annealing and deformation of the article until no further improvement in alignment is observed; and subjecting the aligned grains to a final anneal in order to react any remaining sub-oxide species and maximize the growth and sintering of existing aligned grains.

    摘要翻译： 强连接的多晶氧化物超导体制品包括选自124型和247型氧化物超导体的氧化物超导体，其具有沿着最长尺寸小于50微米的精细高度排列的氧化物超导体颗粒。 氧化物超导体制品在0.1特斯拉场中具有至少25％的临界电流密度保留。 一种制备强连接的氧化物超导体的方法包括使细分的氧化物超导体的金属前体成形; 氧化细碎的金属前体以产生细碎的亚氧化物物质，同时避免将相当数量的亚氧化物物质转化成氧化物超导体; 对制品进行退火和变形，以任何顺序进行退火，该退火在足以将一些氧化物物质转化为氧化物超导体的细晶粒的温度和时间进行，从而形成次氧化物物质和氧化物超导体的混合物 并且进行变形，使得氧化物超导体的细晶粒在不破坏或粉碎氧化物超导体晶粒的同时使其平行于制品的预期电流方向旋转成对准; 交替退火和变形，直到观察不到进一步改善; 并使对准的晶粒进行最终退火，以使任何剩余的亚氧化物物质反应并使现有对准晶粒的生长和烧结最大化。

    Method of making an oxide superconducting thin film
    53.
    发明授权
    Method of making an oxide superconducting thin film 失效
    制造氧化物超导薄膜的方法

    公开(公告)号：US5679625A

    公开(公告)日：1997-10-21

    申请号：US563905

    申请日：1995-11-22

    申请人： Wataru Ito ,  Tadataka Morishita ,  Norio Homma ,  Yukihisa Yoshida

    发明人： Wataru Ito ,  Tadataka Morishita ,  Norio Homma ,  Yukihisa Yoshida

    IPC分类号： C01G1/00 ,  C01G3/00 ,  C23C14/08 ,  C23C14/35 ,  C23C14/46 ,  C30B29/22 ,  H01L39/24 ,  C23C14/34

    CPC分类号： C23C14/35 ,  C23C14/087 ,  C23C14/46 ,  H01L39/2435 ,  Y10S505/731

    摘要： A method of making a superconducting thin film of a Y--Ba--Cu--O series material by using a diode parallel plate type sputtering apparatus including a vacuum chamber, a substrate disposed within the vacuum chamber and having a substantially flat surface on which the superconducting thin film is to be formed, and a plate-shaped target functioning as a cathode and disposed within the vacuum chamber to parallelly face to the flat surface of the substrate, the target being made of the same material as the superconducting thin film, a plasma gas being introduced into the vacuum chamber, and a voltage being applied between the cathode and the substrate, wherein the method comprises the steps of applying a high frequency voltage having a frequency higher than 40 MHz between the cathode and the substrate to generate plasma of the introduced gas, superimposing a DC voltage (V) on the high frequency voltage in a polarity that the cathode becomes negative, and setting the DC voltage at a value where the DC voltage is substantially unchanged with variation of a cathode current flowing through the target when adjusting the DC voltage and controlling a value of the DC current while maintaining the DC voltage substantially at the set value.

    摘要翻译： 通过使用包括真空室的二极管平行板型溅射装置制造Y-Ba-Cu-O系材料的超导薄膜的方法，设置在真空室内的基板，并具有基本平坦的表面，超导 要形成薄膜，并且一个板状靶用作阴极并且设置在真空室内以平行地面对基板的平坦表面，靶由与超导薄膜相同的材料制成，等离子体 气体被引入真空室中，并且施加在阴极和衬底之间的电压，其中该方法包括在阴极和衬底之间施加频率高于40MHz的高频电压以产生等离子体的步骤 引入气体，以与阴极变为负极性的高频电压叠加直流电压（V），将直流电压设定为 当调节直流电压并控制直流电流的值同时保持直流电压基本上处于设定值时，直流电压随着流经目标的阴极电流的变化而基本上不变。

    Oxide superconductor
    54.
    发明授权
    Oxide superconductor 失效
    氧化物超导体

    公开(公告)号：US5674815A

    公开(公告)日：1997-10-07

    申请号：US611974

    申请日：1996-03-06

    申请人： Seiji Adachi ,  Hisao Yamauchi ,  Shoji Tanaka ,  Nobuo Mouri

    发明人： Seiji Adachi ,  Hisao Yamauchi ,  Shoji Tanaka ,  Nobuo Mouri

    IPC分类号： C01G1/00 ,  C01G3/00 ,  H01B12/00 ,  H01L39/02 ,  H01L39/12 ,  H01B12/02 ,  C04B35/45

    CPC分类号： H01L39/126 ,  Y10S505/785

    摘要： An oxide superconductor composed of Cu, O and M (M is Ba, Sr and/or Ca) and including alternately arranged at least one rock-salt structure section and at least one infinite layer structure section, wherein the rock-salt structure section consists of two atomic layers each consisting of O and M and each having an atomic ratio O/M of 1 or less, and the infinite layer structure section consists of alternately arranged, first and second atomic layers. Each of the first atomic layers consists of O and Cu and has an atomic ratio O/Cu of 2, while each of the second atomic layers consists of the element M. The infinite layer structure section may consist of only one first atomic layer.

    摘要翻译： 由Cu，O和M（M是Ba，Sr和/或Ca）组成的氧化物超导体，并且包括交替地布置至少一个岩盐结构部分和至少一个无限层结构部分，其中岩盐结构部分组成 的两个原子层，每个由O和M组成，每个原子比的O / M为1或更小，无限层结构部分由交替排列的第一和第二原子层组成。 每个第一原子层由O和Cu组成，原子比O / Cu为2，而第二原子层由元素M组成。无限层结构部分可以仅由一个第一原子层组成。

    Method for processing gold-bearing sulfide ores involving preparation of a sulfide concentrate
    56.
    发明授权
    Method for processing gold-bearing sulfide ores involving preparation of a sulfide concentrate 失效
    含硫硫化物矿石的加工方法

    公开(公告)号：US5653945A

    公开(公告)日：1997-08-05

    申请号：US423839

    申请日：1995-04-18

    申请人： John C. Gathje ,  Gary L. Simmons

    发明人： John C. Gathje ,  Gary L. Simmons

    IPC分类号： B03D1/00 ,  B03D1/02 ,  C01G1/00 ,  C01G7/00 ,  C07C1/04 ,  C22B1/00 ,  C22B11/00

    CPC分类号： C22B1/00 ,  B03D1/00 ,  B03D1/02 ,  C22B11/00 ,  C22B11/04

    摘要： Provided is a method for processing a gold-bearing sulfide ore which involves maintaining the ore in a substantially oxygen free environment, preferably beginning with comminution of the ore and ending when a desired final concentrate, enriched in sulfide minerals, is obtained by flotation. In one embodiment, nitrogen gas is used to substantially prevent contact between the ore and air during comminution of the ore and during flotation operations. It is believed that oxygen gas present in air detrimentally affects the recovery of sulfide minerals in a flotation concentrate through surface oxidation of sulfide mineral particles. The use of a gas such as nitrogen can significantly reduce the potential for such surface oxidation. Additionally, gases separated from an oxygen plant may be beneficially used, with an oxygen gas stream being used, for example, for pressure oxidation of sulfide mineral materials, and with a nitrogen gas stream being used in comminution and/or flotation operations, resulting in advantageous use of a nitrogen gas by-product stream which has previously been vented to the atmosphere as waste.

    摘要翻译： 提供了一种处理含金硫化物矿石的方法，其涉及将矿石保持在基本上无氧的环境中，优选从矿石粉碎开始开始，并且当通过浮选获得富含硫化物矿物质的所需最终浓缩物时结束。 在一个实施方案中，氮气用于在矿石粉碎和浮选操作期间基本上防止矿石和空气之间的接触。 据信存在于空气中的氧气通过硫化矿物颗粒的表面氧化不利地影响浮选精矿中硫化矿物的回收。 使用诸如氮气等气体可以显着降低这种表面氧化的可能性。 此外，可以有利地使用从氧气厂分离的气体，其中使用氧气流，例如用于硫化矿物材料的压力氧化，并且使用氮气流用于粉碎和/或浮选操作，导致 有利地使用先前作为废物排放到大气中的氮气副产物流。

    Method of forming single-crystalline thin film
    58.
    发明授权
    Method of forming single-crystalline thin film 失效
    形成单晶薄膜的方法

    公开(公告)号：US5607899A

    公开(公告)日：1997-03-04

    申请号：US393747

    申请日：1995-02-24

    申请人： Noriyuki Yoshida ,  Kousou Fujino ,  Noriki Hayashi ,  Shigeru Okuda ,  Tsukushi Hara ,  Hideo Ishii

    发明人： Noriyuki Yoshida ,  Kousou Fujino ,  Noriki Hayashi ,  Shigeru Okuda ,  Tsukushi Hara ,  Hideo Ishii

    IPC分类号： C01G1/00 ,  C01G3/00 ,  C30B23/00 ,  C30B23/02 ,  C30B29/22 ,  H01B12/06 ,  H01B13/00 ,  H01L21/203 ,  H01L39/24 ,  C30B23/08 ,  C30B25/06

    CPC分类号： H01L39/2448 ,  C30B23/02 ,  C30B29/16 ,  C30B29/22 ,  C30B29/225 ,  H01L39/2461 ,  Y10S505/732

    摘要： A thin film strongly orienting specific crystal axes is deposited on a polycrystalline or amorphous base material in accordance with laser deposition in a simpler device through a simpler process. A target is irradiated with a laser beam, for forming a thin film in accordance with laser ablation of depositing a substance scattered from the target on a base material. In order to form the thin film, prepared are conditions capable of forming a film orienting a specific crystal axis substantially perpendicularly to the base material in substantially parallel arrangement of the target and the base material. Under the conditions, a film is deposited on the base material which is inclined at a prescribed angle .theta. with respect to the target. It is possible to deposit a film strongly orienting a specific crystal axis in a plane substantially parallel to the base material surface by inclining the base material under the specific film forming conditions.

    摘要翻译： 通过更简单的工艺，在更简单的装置中，根据激光沉积，将特定晶轴强烈取向的薄膜沉积在多晶或非晶基材上。 用激光照射目标物，用于根据在基材上沉积从靶上散出的物质的激光烧蚀来形成薄膜。 为了形成薄膜，制备能够基本上平行排列靶材和基材的方式形成基本上垂直于基材垂直的特定晶轴的膜的条件。 在这种条件下，在相对于目标物以规定角度θ倾斜的基材上沉积膜。 通过在特定的成膜条件下使基材倾斜，可以将基本平行于基材表面的平面中的特定晶轴强制取向。

    Method of manufacturing an encased wire of high critical temperature superconducting material
    59.
    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

    申请人： Gerard Duperray ,  Denis Legat

    发明人： Gerard Duperray ,  Denis Legat

    IPC分类号： C01G1/00 ,  C01G29/00 ,  H01B12/04 ,  H01B13/00 ,  H01L39/24 ,  B22F3/16 ,  C21D1/00

    CPC分类号： H01L39/248

    摘要： 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.

    摘要翻译： 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。