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1. 发明授权

US5430010A Process for preparing oxide superconductor 失效
标题翻译：制备氧化物超导体的方法
公开(公告)号：US5430010A
公开(公告)日：1995-07-04
申请号：US73656
申请日：1993-06-08
申请人： Masato Murakami , Terutsugu Oyama , Hiroyuki Fujimoto , Naoki Koshizuka , Yu Shiohara , Shoji Tanaka
发明人： Masato Murakami , Terutsugu Oyama , Hiroyuki Fujimoto , Naoki Koshizuka , Yu Shiohara , Shoji Tanaka
IPC分类号： C04B35/45 , C04B35/653 , H01L39/24 , H01B12/00 , H01L39/12
CPC分类号： C04B35/653 , C04B35/4504 , H01L39/2419 , Y10S505/725 , Y10S505/733 , Y10S505/742
摘要： The present invention relates to a process for preparing an oxide superconductor having a high critical current density, a uniform structure and an excellent mechanical property and thermal stability, which comprises heating raw material powders of a REBaCuO system at 1050.degree. C. or higher, cooling the material for solidification, pulverizing and mixing the solidified material to homogeneously disperse the structure of the solidified material, molding the material, optionally mixed with silver oxide or silver, into a predetermined shape, and reheating the molding to 1050.degree. C. or higher to grow a superconducting phase.
摘要翻译：本发明涉及一种制备具有高临界电流密度，均匀结构和优异的机械性能和热稳定性的氧化物超导体的方法，其包括在1050℃或更高温度下加热REBaCuO体系的原料粉末，冷却用于固化，粉碎和混合固化材料以均匀分散固化材料的结构的材料，将任选地与氧化银或银混合的材料成型为预定形状，并将模具再加热至1050℃以上至成长超导阶段

2. 发明授权

US5459124A Process for producing oxide superconductor 失效
标题翻译：氧化物超导体的制造方法
公开(公告)号：US5459124A
公开(公告)日：1995-10-17
申请号：US144947
申请日：1993-10-29
申请人： Terutsugu Oyama , Masato Murakami , Naoki Koshizuka , Shoji Tanaka
发明人： Terutsugu Oyama , Masato Murakami , Naoki Koshizuka , Shoji Tanaka
IPC分类号： C04B35/45 , C04B35/64 , C04B35/653 , H01L39/24 , C04B35/505
CPC分类号： C04B35/4504 , C04B35/45 , C04B35/64 , C04B35/653 , H01L39/2419 , Y10S505/725
摘要： A process for producing an oxide superconductor, comprising putting a formed body of raw material powders for forming an oxide superconductor on silver or silver oxide within a pan which does not melt at the melting point of silver, heating the pan to a temperature higher than the melting point of silver to bring the formed body to a semi-molten state with the formed body being floated on molten silver, cooling the pan and taking the formed body out of the re-solidified silver. This process enables a large bulk material having a diameter of 10 cm or more to be produced without occurrence of cracking.
摘要翻译：一种氧化物超导体的制造方法，其特征在于，将在所述锅内的银或氧化银上形成氧化物超导体的原料粉末的成形体放置在不在银熔点熔化的锅内，将所述锅加热至高于银的熔点使成形体处于半熔融状态，其中成形体浮在熔融的银上，冷却盘并将成形体从重新凝固的银中取出。该方法能够生产直径为10cm或更大的大体积材料而不发生开裂。

3. 发明授权

US5389604A Process of producing oxide superconductor 失效
标题翻译：生产氧化物超导体的工艺
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。

4. 发明授权

US5341059A Superconducting bearing unit and operating method thereof 失效
标题翻译：超导轴承单元及其操作方法
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
IPC分类号： F16C32/04 , F16C39/06 , H02J15/00 , H02K7/09
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。

5. 发明授权

US5474976A Production of oxide superconductors having large magnetic levitation force 失效
标题翻译：生产具有较大磁悬浮力的氧化物超导体
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。

6. 发明授权

US06953770B2 MgB2—based superconductor with high critical current density, and method for manufacturing the same 失效
标题翻译：具有高临界电流密度的MgB2基超导体及其制造方法
公开(公告)号：US06953770B2
公开(公告)日：2005-10-11
申请号：US10333770
申请日：2002-05-10
申请人： Yong Zhao , Yong Feng , Yuan Wu , Takato Machi , Yasunori Fudamoto , Naoki Koshizuka , Masato Murakami
发明人： Yong Zhao , Yong Feng , Yuan Wu , Takato Machi , Yasunori Fudamoto , Naoki Koshizuka , Masato Murakami
IPC分类号： H01L39/12 , H01L39/00 , H01B1/02 , H01B12/00
CPC分类号： H01L39/125 , C04B35/58057 , C04B35/6303 , C04B2235/3813 , C04B2235/401 , C04B2235/404 , C04B2235/421 , C04B2235/5436 , C04B2235/80 , C04B2235/94 , H01L39/2487 , Y10S420/901 , Y10S428/93
摘要： The present invention relates to an MgB2-based superconductor that is easy to manufacture and well suited to mass production, and that exhibits excellent superconducting characteristics (such as a high critical current density) while still retaining the high critical temperature characteristics of MgB2. A powder mixture of magnesium, boron, and titanium is pressed into a pellet, and this product is sintered under an atmospheric pressure and other conditions (preferably at 600° C. or higher) to manufacture an MgB2-based superconductor in which titanium and/or a titanium compound are dispersed in polycrystalline MgB2. The composition of the MgB2-based superconductor is preferably adjusted to have an atomic ratio of Mg:B:Ti=x:2:y, 0.7
摘要翻译：本发明涉及容易制造且非常适合批量生产的基于MgB 2 O 2的超导体，并且显示出优异的超导特性（例如高临界电流密度），同时仍保持高的 MgB 2的临界温度特性。将镁，硼和钛的粉末混合物压制成颗粒，并将该产物在大气压和其他条件（优选在600℃或更高）下烧结以制备MgB 2 的超导体，其中钛和/或钛化合物分散在多晶MgB 2 2中。优选将MgB 2 O 2基超导体的组成调整为具有Mg:B:Ti = x:2:y，0.7

7. 发明授权

US5395820A Oxide superconductor and process for producing the same 失效
标题翻译：氧化物超导体及其制造方法
公开(公告)号：US5395820A
公开(公告)日：1995-03-07
申请号：US952636
申请日：1992-12-01
申请人： Masato Murakami , Tsutomu Takata , Koji Yamaguchi , Akihiro Kondoh , Naoki Koshizuka
发明人： Masato Murakami , Tsutomu Takata , Koji Yamaguchi , Akihiro Kondoh , Naoki Koshizuka
IPC分类号： C01G1/00 , C01G3/00 , C01G55/00 , C04B35/45 , H01B12/00 , H01L39/24 , H01L39/12
CPC分类号： C01G55/002 , C01G3/006 , C04B35/4504 , C04B35/4508 , C01P2004/03 , C01P2004/61 , C01P2004/62 , C01P2006/40 , C01P2006/42 , C01P2006/80 , Y10S505/78 , Y10S505/781 , Y10S505/785
摘要： An oxide superconductor comprising a crystal of LnBa.sub.2 Cu.sub.3 O.sub.y (wherein Ln is at least one of rare earth elements including Y) and, finely dispersed therein, Ln.sub.2 BaCuO.sub.5 and a composite oxide of PtBaCuO having an average particle diameter of 0.1 to 10 .mu.m is disclosed. The oxide superconductor is produced by melting a raw material powder comprising a composite oxide of Ln, Ba and Cu, rapidly solidifying the melt, pulverizing the resultant solid, mixing a Pt powder with the pulverized mixture, forming a resultant mixture, heating a resultant formed body to bring the formed body to a partially-molten state and cooling the partially-molten material.
摘要翻译： PCT No.PCT / JP92 / 00402 Sec。 371日期1992年12月1日 102（e）日期1992年12月1日PCT提交1992年4月1日PCT公布。 WO92 / 17407 PCT出版物日期：1992年10月15日。一种包含LnBa2Cu3Oy（其中Ln是包括Y的稀土元素中的至少一种）的氧化物超导体，并且其中细分散有Ln2BaCuO5和PtBaCuO的复合氧化物，其平均粒径为0.1至公开了10微米。通过熔化包含Ln，Ba和Cu的复合氧化物的原料粉末，快速固化熔体，粉碎所得固体，将Pt粉末与粉碎混合物混合，形成所得混合物，将成形体带入部分熔融状态并冷却部分熔融的材料。

8. 发明授权

US5920246A Superconductive composite materials 失效
标题翻译：超导复合材料
公开(公告)号：US5920246A
公开(公告)日：1999-07-06
申请号：US825700
申请日：1997-03-19
申请人： Ken Nagashima , Naomichi Sakai , Sang-Im Yoo , Hiroyuki Fujimoto , Masato Murakami
发明人： Ken Nagashima , Naomichi Sakai , Sang-Im Yoo , Hiroyuki Fujimoto , Masato Murakami
IPC分类号： C01G1/00 , C01G3/00 , H01B12/00 , H01B13/00 , H01L39/00 , H01L39/14 , H01F1/00
CPC分类号： H01L39/143 , Y10S505/776
摘要： A composite material having a plurality of sections integrated into a unitary structure and each including a bulk of a superconductive metal oxide of RE--Ba--Cu--O wherein RE represents a rare earth element, the bulk of each of the sections having pinning centers and capable of trapping a magnetic field. A first one of the sections has a superconductive current density different from that of a second one of the sections. The composite material may be produced by assembling preformed respective sections into a unitary structure or by immersing one of the sections in a solution to grow crystal of Y--Ba--Cu--O superconductive on that section, followed by trimming.
摘要翻译：一种复合材料，其具有整合成单一结构的多个部分，并且每个部分包括大部分RE-Ba-Cu-O的超导金属氧化物，其中RE表示稀土元素，每个部分的主体具有钉扎中心和能够捕获磁场。这些部分中的第一部分具有与第二部分的超导电流密度不同的超导电流密度。复合材料可以通过将预成形的各个部分组装成单一结构或将其中一个部分浸入溶液中来生产，以在该部分上生长Y-Ba-Cu-O超导的晶体，然后进行修整。

9. 发明授权

US5849667A Superconductor and method of producing same 失效
标题翻译：超导体及其制造方法
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
IPC分类号： H01L39/12 , H01B12/00 , C04B35/50
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。

10. 发明授权

US5543768A Composite of high-temperature superconductive bulk form with coil magnet 失效
标题翻译：高温超导体与线圈磁体复合
公开(公告)号：US5543768A
公开(公告)日：1996-08-06
申请号：US319569
申请日：1994-10-07
申请人： Masato Murakami , Hiroshi Takaichi , Shoji Tanaka , Naomichi Sakai
发明人： Masato Murakami , Hiroshi Takaichi , Shoji Tanaka , Naomichi Sakai
IPC分类号： H01B13/00 , H01F6/00 , H01F6/06 , H01F1/00
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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