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公开(公告)号：US5341059A
公开(公告)日：1994-08-23
申请号：US954674
申请日：1992-09-30
申请人： Hiromasa Fukuyama , Satoru Aihara , Masato Murakami , Hiroyuki Fujimoto , Akihiro Kondoh , Hiroshi Takaichi , Naoki Koshizuka
发明人： Hiromasa Fukuyama , Satoru Aihara , Masato Murakami , Hiroyuki Fujimoto , Akihiro Kondoh , Hiroshi Takaichi , Naoki Koshizuka
CPC分类号： F16C32/0438 , Y10S505/876
摘要： A superconducting bearing unit compring a permanent magnet mounted to a rotating shaft and a superconducting body mounted on the inner periphery of a housing surrounding the shaft, the superconducting member being adapted to be cooled with the rotating shaft moved upwards until it attains a superconducting condition, so that the rotating shaft is supported in use in a balanced condition between the weight of the rotating shaft, etc. and a pinning force caused by the permanent magnet and the superconducting member.
摘要翻译： 一种超导轴承单元，其包括安装在旋转轴上的永磁体和安装在围绕轴的壳体的内周上的超导体，所述超导构件适于随着所述旋转轴向上移动直到达到超导状态而被冷却， 使得旋转轴在旋转轴等的重量和由永磁体和超导构件引起的锁定力之间的平衡状态下被使用中被支撑。
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公开(公告)号：US5389604A
公开(公告)日：1995-02-14
申请号：US77378
申请日：1993-06-17
申请人： Masato Murakami , Naomichi Sakai , Hiroshi Takaichi , Akihiro Kondoh , Shoichi Kagiya , Naomichi Nakamura , Hiroyuki Fujimoto , Naoki Koshizuka , Shoji Tanaka
发明人： Masato Murakami , Naomichi Sakai , Hiroshi Takaichi , Akihiro Kondoh , Shoichi Kagiya , Naomichi Nakamura , Hiroyuki Fujimoto , Naoki Koshizuka , Shoji Tanaka
IPC分类号： C01G1/00 , C01G3/00 , C30B11/00 , C30B29/22 , H01B12/00 , H01B13/00 , H01L39/24 , H01B1/00 , H01L39/00
CPC分类号： H01L39/2419 , Y10S505/742 , Y10S505/78
摘要： To ensure a well-oriented crystal structure, there is provided a process of producing an oxide superconductor of a Y--Ba--Cu--O system with a composition having an atomic ratio Y:Ba:Cu of 1.0-2.0:2.0-2.5:3.0-3.5, the process comprising the steps of: preparing a semimelt including solid and liquid phases and consisting of Y, Ba, Cu and O in the atomic ratio; and solidifying the semimelt to form the oxide superconductor by so controlling a moving speed of a solidification front to have two components of different values in two perpendicularly intersecting directions.
摘要翻译： 为了确保良好取向的晶体结构，提供了具有原子比Y：Ba:Cu的组成为1.0-2.0:2.0-2.5:1的Y-Ba-Cu-O系的氧化物超导体的方法： 3.0-3.5，该方法包括以下步骤：制备包含固相和液相并且以原子比为Y，Ba，Cu和O组成的半固态; 并通过控制固化前沿的移动速度在两个垂直相交的方向上具有不同值的两个分量来固化半固化物以形成氧化物超导体。
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3.发明授权
公开(公告)号：US5474976A
公开(公告)日：1995-12-12
申请号：US39561
申请日：1993-03-29
申请人： Akihiro Kondoh , Masato Murakami , Hiroshi Takaichi , Naoki Koshizuka , Shoji Tanaka , Shoichi Kagiya
发明人： Akihiro Kondoh , Masato Murakami , Hiroshi Takaichi , Naoki Koshizuka , Shoji Tanaka , Shoichi Kagiya
IPC分类号： C04B35/45 , C04B35/653 , H01L39/12 , H01L39/24
CPC分类号： C04B35/653 , C04B35/4504 , H01L39/126 , H01L39/2483
摘要： A method for producing an REBaCuO oxide superconductor having large magnetic levitation force, where RE is a rare earth element selected from the group consisting of Y, Sm, Eu, Gd, Dy, Ho, Er, and Yb, involves the steps of using a raw material mixture as the starting feed, heating the raw material mixture for partial melting, followed by cooling and solidification, pulverizing and mixing the resulting solid, shaping the resulting mixture into a given shape, placing or embedding nucleates on or in the resulting shape, followed by heating for partial melting, and cooling the resulting partial melt to a substantial temperature at which a superconducting phase starts to form, followed by slow cooling, whereby the superconducting phase is preferentially formed and grown from a nucleation site.
摘要翻译： 制备具有大的磁悬浮力的REBaCuO氧化物超导体的方法，其中RE是选自Y，Sm，Eu，Gd，Dy，Ho，Er和Yb的稀土元素，包括使用 原料混合物作为起始原料，加热原料混合物进行部分熔融，然后冷却和固化，粉碎和混合所得固体，将所得混合物成形为给定形状，将成核体放置或嵌入所形成的形状， 然后加热部分熔融，并将所得部分熔体冷却至开始形成超导相的实质温度，然后缓慢冷却，由此优选从成核位点形成和生长超导相。
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公开(公告)号：US5525584A
公开(公告)日：1996-06-11
申请号：US452138
申请日：1995-05-26
申请人： Masato Murakami , Sang-Im Yoo , Naomichi Sakai , Hiroshi Takaichi , Takamitsu Higuchi , Shoji Tanaka
发明人： Masato Murakami , Sang-Im Yoo , Naomichi Sakai , Hiroshi Takaichi , Takamitsu Higuchi , Shoji Tanaka
CPC分类号： H01L39/126 , Y10S505/742 , Y10S505/778 , Y10S505/779 , Y10S505/785
摘要： A high critical temperature and high critical current density superconductor is disclosed which contains a metal oxide expressed by the following formula (I):(R.sup.1.sub.1-x,Ba.sub.x)Ba.sub.2 Cu.sub.3 O.sub.d (I)wherein R.sup.1 stands for at least one element selected from the group consisting of La, Nd, Sm, Eu and Gd, x is a number greater than 0 but not greater than 0.5 and d is a number between 6.2 and 7.2. Fine phases of RE211, RE422 and/or a metal oxide expressed by the formula (R.sup.2.sub.1-z, Ba.sub.z) (Ba.sub.1-y, R.sup.2.sub.y).sub.2 Cu.sub.3 O.sub.p (R.sup.2 =La, Nd, Sm, Eu or Gd) may be dispersed in a matrix of the matrix phase of the formula (I). The above superconductor may be obtained by cooling a melt having a temperature of 1,000.degree.-1,300.degree. C. and containing R.sup.1, Ba, Cu and O at a cooling rate of 5.degree. C./hour or less under a partial pressure of oxygen of between 0.00001 and 0.05 atm, followed by annealing at 250.degree.-600.degree. C. in an oxygen atmosphere.
摘要翻译： 公开了一种高临界温度和高临界电流密度超导体，其包含由下式（I）表示的金属氧化物：（R11-x，Bax）Ba2Cu3Od（I）其中R1代表选自以下的至少一种元素： 的La，Nd，Sm，Eu和Gd，x是大于0但不大于0.5的数，d是6.2和7.2之间的数。 RE211，RE422和/或由式（R21-z，Baz）（Ba1-y，R2y）2Cu3Op（R2 = La，Nd，Sm，Eu或Gd）表示的金属氧化物的细相可以分散在基质 的式（I）的基质相。 上述超导体可以通过在5℃/小时以下的冷却速度下，在温度为1000〜-1300℃的温度下冷却含有R 1，Ba，Cu和O的熔体， 在0.00001和0.05atm之间，然后在氧气氛中在250-600℃退火。
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公开(公告)号：US5521150A
公开(公告)日：1996-05-28
申请号：US305915
申请日：1994-09-15
CPC分类号： C04B35/645 , C04B35/4508 , C04B37/003 , C04B37/005 , H01L39/02 , H01R4/68 , C04B2235/3225 , C04B2235/6565 , C04B2237/06 , C04B2237/34 , C04B2237/708 , Y10S505/927
摘要： Disclosed is a method of joining Y-based oxide superconductors on joining two or more Y-based oxide superconductors made by melting process under pressure, characterized by incorporating REBa.sub.2 Cu.sub.3 O.sub.7-.delta. (RE=Y, Ho, Er, Tm or Yb), Ag and BaCuO.sub.2 -CuO type composition to the joining interface as an adhesive phase for joining. It becomes possible to easily make a joined material that does not deteriorate the superconductive characteristic at joined interface.
摘要翻译： 公开了一种连接Y型氧化物超导体在连接两个或更多个通过在压力下熔化过程制成的氧化物超导体的方法，其特征在于掺入REBa2Cu3O7-δ（RE = Y，Ho，Er，Tm或Yb），Ag和 BaCuO 2-CuO型组合物作为接合界面，作为接合用胶粘剂相。 可以容易地制造不劣化接合界面处的超导特性的接合材料。
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公开(公告)号：US5849667A
公开(公告)日：1998-12-15
申请号：US683915
申请日：1996-07-19
申请人： Masato Murakami , Sang-Im Yoo , Naomichi Sakai , Hiroshi Takaichi , Takamitsu Higuchi , Shoji Tanaka
发明人： Masato Murakami , Sang-Im Yoo , Naomichi Sakai , Hiroshi Takaichi , Takamitsu Higuchi , Shoji Tanaka
CPC分类号： H01L39/126 , Y10S505/742 , Y10S505/778 , Y10S505/779 , Y10S505/785
摘要： A high critical temperature and high critical current density superconductor is disclosed which contains a metal oxide expressed by the following formula (I): (R.sup.1.sub.1-x, Ba.sub.x)Ba.sub.2 Cu.sub.3 O.sub.d (I) wherein R.sup.1 stands for at least one element selected from the group consisting of La, Nd, Sm, Eu and Gd, x is a number greater than 0 but not greater than 0.5 and d is a number between 6.2 and 7.2. Fine phases of RE211, RE422 and/or a metal oxide expressed by the formula (R.sup.2.sub.1-z, Ba.sub.z) (Ba.sub.1-y, R.sup.2.sub.y).sub.2 Cu.sub.3 O.sub.p (R.sup.2 =La, Nd, Sm, Eu or Gd) may be dispersed in a matrix of the matrix phase of the formula (I). The above superconductor may be obtained by cooling a melt having a temperature of 1,000.degree.-1,300.degree. C. and containing R.sup.1, Ba, Cu and O at a cooling rate of 5.degree. C./hour or less under a partial pressure of oxygen of between 0.00001 and 0.05 atm, followed by annealing at 250.degree.-600.degree. C. in an oxygen atmosphere.
摘要翻译： 公开了一种高临界温度和高临界电流密度超导体，其包含由下式（I）表示的金属氧化物:( R11-x，Bax）Ba2Cu3Od（I）其中R1表示选自以下的至少一种元素： 的La，Nd，Sm，Eu和Gd，x是大于0但不大于0.5的数，d是6.2和7.2之间的数。 RE211，RE422和/或由式（R21-z，Baz）（Ba1-y，R2y）2Cu3Op（R2 = La，Nd，Sm，Eu或Gd）表示的金属氧化物的细相可以分散在基质 的式（I）的基质相。 上述超导体可以通过在5℃/小时以下的冷却速度下，在温度为1000〜-1300℃的温度下冷却含有R 1，Ba，Cu和O的熔体， 在0.00001和0.05atm之间，然后在氧气氛中在250-600℃退火。
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公开(公告)号：US5543768A
公开(公告)日：1996-08-06
申请号：US319569
申请日：1994-10-07
CPC分类号： H01F6/06
摘要： A composite magnet comprising a core of R-Ba-Cu-O type bulk superconductor (R denotes rare-earth elements) made by melt process, enclosed around it with normal conductive or superconductive coil, or a composite magnet including a center of normal conductive or superconductive coil, enclosed around it with ring-shaped R-Ba-Cu-O type bulk superconductor (R denotes rare-earth elements) made by melt process is disclosed, which allows easy control of generating magnetic field and gives a relatively strong magnetic field even at a temperature as high as that of liquid nitrogen.
摘要翻译： 一种复合磁体，包括由熔融法制成的R-Ba-Cu-O型体超导体（R表示稀土元素）的核心，用正常的导电或超导线圈封闭，或者包括正常导电中心的复合磁体 或超导线圈，其周围围绕着由熔体制造的环形R-Ba-Cu-O型体超导体（R表示稀土元素）包围，这允许容易地控制产生磁场并产生相对强的磁 即使在与液氮相同的温度下也是如此。
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公开(公告)号：US5801469A
公开(公告)日：1998-09-01
申请号：US117088
申请日：1994-02-08
CPC分类号： F16C32/0438 , F16C2240/40 , F16C2300/34
摘要： A superconducting bearing device comprises an annular permanent magnetic portion 2 disposed concentrically with a rotary body 1 in the form of a vertical shaft, and superconductors 8 opposed to the lower end face of the magnet portion 2 and vertically spaced apart therefrom. The permanent magnet portion 2 comprises a disk 4 fixedly mounted on the rotary body 1, and annular permanent magnets 6a, 6b arranged on the disk 4 at a spacing radially of the rotary body 1. Each of the magnets 6a, 6b has upper and lower ends magnetized to polarities opposite to each other, and the adjacent magnets 6a, 6b are magnetized to polarities opposite to each other at the upper ends, as well as at the lower ends. The radial spacing between the magnets 6a, 6b is optimized in accordance with the radial dimension (width) of the magnets 6a, 6b. This improves the device in load capacity and rigidity and prevents the deflection of axis of the rotary body 1, enabling the bearing device to support the rotary body 1 in a noncontact state with good stability.
摘要翻译： PCT No.PCT / JP92 / 00301 Sec。 371日期1994年2月8日 102（e）日期1994年2月8日PCT提交1992年3月13日PCT公布。 WO92 / 16762 PCT出版物 日期：1992年10月1日超导轴承装置包括与垂直轴形式的旋转体1同心设置的环形永磁部分2和与磁体部分2的下端面相对并且与其垂直间隔开的超导体8 。 永磁体部分2包括固定地安装在旋转体1上的盘4和以旋转体1的径向间隔设置在盘4上的环形永磁体6a，6b。每个磁体6a，6b具有上下 端部被磁化成彼此相反的极性，并且相邻的磁体6a，6b在上端以及在下端被磁化成彼此相反的极性。 磁体6a，6b之间的径向间隔根据磁体6a，6b的径向尺寸（宽度）进行优化。 这提高了装置的负载能力和刚性，并且防止旋转体1的轴线的偏转，使得轴承装置能够以非常接触的状态将旋转体1支撑在良好的稳定性。
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公开(公告)号：US5739606A
公开(公告)日：1998-04-14
申请号：US632612
申请日：1996-04-15
CPC分类号： F16C32/0438 , F16C2300/34
摘要： A superconducting bearing device comprises an annular permanent magnet portion disposed concentrically with a rotary body in the form of a vertical shaft, and superconductors opposed to the lower end face of the magnet portion and vertically spaced apart therefrom. The permanent magnet portion comprises a disk fixedly mounted on the rotary body, and annular permanent magnets embedded in the disk at a spacing radially of the rotary body. Each of the magnets has upper and lower ends magnetized to polarities opposite to each other, and the adjacent magnets are magnetized to polarities opposite to each other at the upper ends, as well as at the lower ends. The radial spacing between the magnets is optimized in accordance with the radial dimension (width) of the magnets. This improves the device in load capacity and rigidity and prevents the deflection of axis of the rotary body, enabling the bearing device to support the rotary body in a noncontact state with good stability.
摘要翻译： 超导轴承装置包括与垂直轴形式的旋转体同心地设置的环形永磁体部分，以及与磁体部分的下端面相对并且与其垂直间隔开的超导体。 永磁体部分包括固定地安装在旋转体上的盘，以及以旋转体径向间隔嵌入盘中的环形永久磁体。 每个磁体具有被磁化成彼此相反的极性的上端和下端，并且相邻的磁体在上端以及在下端被磁化成彼此相反的极性。 根据磁体的径向尺寸（宽度）来优化磁体之间的径向间隔。 这提高了装置的负载能力和刚性，并且防止旋转体的轴线的偏转，使得轴承装置能够以非常接触的状态将旋转体支撑在良好的稳定性。
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