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1. 发明授权

US5556830A Tl-doped HgBaCaCu superconductors 失效
标题翻译： Tl掺杂HgBaCaCu超导体
公开(公告)号：US5556830A
公开(公告)日：1996-09-17
申请号：US251606
申请日：1994-05-31
申请人： Guifu Sun , Kai W. Wong , Ying Xin
发明人： Guifu Sun , Kai W. Wong , Ying Xin
IPC分类号： C04B35/45 , H01L39/12 , C04B35/00 , C04B35/057
CPC分类号： H01L39/126 , C04B35/4512 , Y10S505/783
摘要： Improved superconducting oxides are provided having the general formula (Hg.sub.1-x Tl.sub.x)Ba.sub.2 Ca.sub.n-1 Cu.sub.n O.sub.2n+2+.alpha. where x is from about 0.05-0.5 and n is 1, 2, 3 or 4, and .alpha. is an oxygen enrichment factor. The Tl-doped oxides exhibit very high T.sub.c and J.sub.c values.
摘要翻译：提供了具有通式（Hg1-xTlx）Ba2Can-1CunO2n + 2 +α的改进的超导氧化物，其中x为约0.05-0.5，n为1,2,3或4，α为富氧因子。 Tl掺杂的氧化物表现出非常高的Tc和Jc值。

2. 发明授权

US5098868A Vanadium-based superconducting metallic oxides 失效
标题翻译：基于VANADIUM的超导金属氧化物
公开(公告)号：US5098868A
公开(公告)日：1992-03-24
申请号：US590916
申请日：1990-10-01
申请人： Kai W. Wong , Wai-Yim Ching , Peter C. W. Fung , Fui T. Chan , Zhengzhi Sheng
发明人： Kai W. Wong , Wai-Yim Ching , Peter C. W. Fung , Fui T. Chan , Zhengzhi Sheng
IPC分类号： C01G1/00 , C01G31/00 , C04B35/45 , H01B12/00 , H01L39/12
CPC分类号： C01G31/006 , C04B35/4521 , C04B35/4525 , H01L39/126 , C01P2002/50 , C01P2002/72 , C01P2002/77 , C01P2006/40 , C01P2006/42 , Y10S505/775 , Y10S505/776 , Y10S505/782
摘要： Vanadium-containing superconducting oxides are disclosed having critical temperature (T.sub.c) values of above about 100.degree. K. and preferably about 110.degree.-150.degree. K., together with predicted current density (J.sub.c) values on the order of 10.sup.4 -10.sup.5 amperes/cm.sup.2. The oxides hereof are moreover relatively ductile and easily bulk sintered to give end products having desirable superconductivity characteristics. Certain preferred oxides of the invention are defined by the general formula:(V.sub.1-x M.sub.x).sub.i (A.sub.1-y M.sub.y).sub.j Q.sub.k Cu.sub.m O.sub.r.+-.t I.where M is selected from the group consisting of bismuth, lead and antimony, A is selected from the group consisting of calcium, sodium and potassium, Q is different than A and is selected from the group consisting of strontium, barium and calcium, x and t are individual numbers each respectively ranging from 0 to less than 1, i is either 2 or 3, j is either 0, 1 or 2, k is 2 or 3, m is either 1, 2 or 3, and r is an integer. Other preferred oxides are defined by the formulaBi.sub.2-p-q V.sub.p Pb.sub.q Sr.sub.2 Ca.sub.2 Cu.sub.3 O.sub.10.+-.t II.where p and q independently range up to about 0.7 and t is from 0 to less than l.
摘要翻译：公开了含有高于约100°K，优选约110°-150°K的临界温度（Tc）值的钒含量超导氧化物，以及预计的电流密度（Jc）值约为104-105安培/ cm2。此外，其氧化物相对延性并容易地体积烧结，以产生具有期望的超导特性的最终产品。本发明的某些优选的氧化物由通式（V1-xMx）i（A1-yMy）jQkCumOr +/- t I定义。其中M选自铋，铅和锑，A选自由钙，钠和钾组成的组，Q不同于A，选自锶，钡和钙，x和t各自分别为0至小于1，i为2或3 j为0,1或2，k为2或3，m为1,2或3，r为整数。其它优选的氧化物由式Bi2-p-qVpPbqSr2Ca2Cu3O10 +/- t II定义。其中p和q独立地为约0.7，t为0至小于1。

3. 发明授权

US5470821A Superconductors having continuous ceramic and elemental metal matrices 失效
标题翻译：具有连续陶瓷和元素金属基体的超导体
公开(公告)号：US5470821A
公开(公告)日：1995-11-28
申请号：US389544
申请日：1995-02-15
申请人： Kai W. Wong , Xin Fei , Ying Xin , Yi-Han Kao
发明人： Kai W. Wong , Xin Fei , Ying Xin , Yi-Han Kao
IPC分类号： C22C1/05 , C22C29/12 , H01L39/12 , H01B12/00
CPC分类号： C22C1/051 , C22C29/12 , H01L39/126 , Y10S505/783 , Y10S505/785 , Y10T428/12021 , Y10T428/12063 , Y10T428/24545
摘要： Composite bulk superconducting materials having desirable physical, measured transport current density and high T.sub.c superconducting characteristics are provided which comprise a first matrix of superconducting ceramic oxide crystalline grains with a second matrix of elemental metal (gold, silver, palladium and tin) situated within the interstices between the crystalline grains. Preferably, each matrix is a continuous phase within the composite material, with the ceramic oxide preferably being present at a level of at least about 80% by weight, whereas the elemental metal is present at a level of up to about 20% by weight. In fabrication procedures, a precursor superconducting ceramic oxide is first prepared and reduced to a fine powder size; this is mixed with powdered elemental metal, and the mixture is compressed using high compaction pressures on the order of 14 tons/cm.sup.2 or greater to form a body, which is then sintered to yield the composite. Particularly preferred composites include a mixed metallic matrix including respective quantities of tin and a noble metal.
摘要翻译：提供具有期望的物理，测量的传输电流密度和高Tc超导特性的复合体超导材料，其包括位于空隙内的元素金属（金，银，钯和锡）的第二基质的超导陶瓷氧化物晶粒的第一基体晶粒之间。优选地，每个基质是复合材料内的连续相，其中陶瓷氧化物优选以至少约80重量％的水平存在，而元素金属以至多约20重量％的水平存在。在制造方法中，首先制备前体超导陶瓷氧化物并将其还原成细粉末尺寸; 将其与粉状元素金属混合，并使用约14吨/ cm 2以上的高压实压力压制混合物以形成主体，然后将其烧结以产生复合材料。特别优选的复合材料包括包含各种量的锡和贵金属的混合金属基体。

4. 发明授权

US5329165A Selectively switchable superconducting electromagnetic shield 失效
标题翻译：选择性切换超导电磁屏蔽
公开(公告)号：US5329165A
公开(公告)日：1994-07-12
申请号：US887859
申请日：1992-05-26
申请人： Yi-Han Kao , Kai W. Wong
发明人： Yi-Han Kao , Kai W. Wong
IPC分类号： H05K9/00 , H01F7/00
CPC分类号： H05K9/0077
摘要： A selectively controllable, direction-, amplitude- and/or frequency-specific superconducting shield (10) is provided which includes a multiply-connected superconducting shield (12) adapted to shield a zone (13) from external magnetic, electric and/or electromagnetic fields and signals. Controlled gating of the shield (12) is provided by means (16) serving to selectively lower the critical shielding current density of a portion (26) of the shield (12) to a level permitting entrance of external fields through the portion (26), while leaving the critical shielding current densities of other portions of the shield (12) at higher, field-shielding levels. The means (16) preferably includes respective, selectively energizable coil pairs (CP.sub.1, CP.sub.2 . . . CP.sub.n) disposed about the shield (12). A highly sensitive magnetic detector (30) would include the shielding device (10) as well as a SQUID assembly (18) situated within the zone (13) defined by shield (12). The detectors of the invention may be used in passive, gating-controlled arrays in order to improve signal discrimination and signal-to-noise characteristics of conventional arrays.
摘要翻译：提供了一种选择性可控，方向，幅度和/或频率特定的超导屏蔽（10），其包括适于屏蔽区域（13）与外部磁性，电气和/或电磁（12）的多重连接的超导屏蔽（12）领域和信号。屏蔽件（12）的受控栅极由用于选择性地将屏蔽件（12）的部分（26）的临界屏蔽电流密度降低到允许外部场通过部分（26）的水平的装置（16）提供，同时将屏蔽件（12）的其它部分的临界屏蔽电流密度保持在更高的场屏蔽电平。装置（16）优选地包括围绕屏蔽件（12）设置的相应的选择性激励的线圈对（CP1，CP2 ... CPn）。高灵敏度磁检测器（30）将包括屏蔽装置（10）以及位于由屏蔽件（12）限定的区域（13）内的SQUID组件（18）。本发明的检测器可以用于无源门控控制阵列，以便改进常规阵列的信号鉴别和信噪比特性。

5. 发明授权

US5242897A High T.sub.c superconducting oxides 失效
标题翻译：高Tc超导氧化物
公开(公告)号：US5242897A
公开(公告)日：1993-09-07
申请号：US783356
申请日：1991-10-28
申请人： Kai W. Wong , Xin Fei
发明人： Kai W. Wong , Xin Fei
IPC分类号： C04B35/45 , H01L39/12
CPC分类号： C04B35/4521 , H01L39/126 , Y10S505/779 , Y10S505/78 , Y10S505/782 , Y10S505/783
摘要： Complex superconducting oxides are fabricated through appropriate selection and use of fundamental superconducting "building blocks." In this fashion, the invention provides a rationalized method of fabricating complex oxides having desirably high T.sub.c values. In another aspect of the invention, novel, 112 and 12 superconducting oxides are described.
摘要翻译：复合超导氧化物是通过适当选择和使用基本超导“构件”来制造的。以这种方式，本发明提供了制造具有期望的高Tc值的复合氧化物的合理化方法。在本发明的另一方面，描述了新颖的112和12超导氧化物。

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