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1. 发明授权

US5252544A Oxide superconductor having the formula Pb.sub.a (M.sub.1-x-y Ce.sub.x Sr.sub.y).sub.4 Cu.sub.3-a O.sub.z where M is at least one rare earth element 失效
标题翻译：具有式Pba（M1-x-yCexSry）4Cu3-aOz的氧化物超导体，其中M是至少一种稀土元素
公开(公告)号：US5252544A
公开(公告)日：1993-10-12
申请号：US712264
申请日：1991-06-07
申请人： Toshihiko Maeda , Kazuhiro Sakuyama , Shin-ichi Koriyama , Ataru Ichinose , Hisao Yamauchi , Shoji Tanaka
发明人： Toshihiko Maeda , Kazuhiro Sakuyama , Shin-ichi Koriyama , Ataru Ichinose , Hisao Yamauchi , Shoji Tanaka
IPC分类号： C01G3/00 , C01G1/00 , C01G21/00 , C04B35/45 , H01B12/00 , H01L39/12 , C01F11/02 , C01F17/00 , C01G3/02
CPC分类号： H01L39/126 , C01G21/006 , C04B35/45 , C01P2002/30 , C01P2002/72 , C01P2002/77 , Y10S505/778 , Y10S505/779
摘要： An oxide superconductor which has a composition expressed by the following general formula and whose crystal structure is 1222-phase structure.Pb.sub.a (M.sub.1-x-y Ce.sub.x Sr.sub.y).sub.4 Cu.sub.3-a O.sub.z (I)(where M represents at least one element selected from the group consisting of Y, La, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, and Lu, and a, x, y, and z denote the numbers which satisfy 0.3.ltoreq.a.ltoreq.0.7, 0

2. 发明授权

US5407908A Method of manufacturing an oxide superconductor 失效
标题翻译：制造氧化物超导体的方法
公开(公告)号：US5407908A
公开(公告)日：1995-04-18
申请号：US91832
申请日：1993-07-13
申请人： Toshihiko Maeda , Kazuhiro Sakuyama , Shin-ichi Koriyama , Ataru Ichinose , Hisao Yamauchi , Shoji Tanaka
发明人： Toshihiko Maeda , Kazuhiro Sakuyama , Shin-ichi Koriyama , Ataru Ichinose , Hisao Yamauchi , Shoji Tanaka
IPC分类号： C01G3/00 , C01G1/00 , C01G21/00 , C04B35/45 , H01B12/00 , H01L39/12
CPC分类号： H01L39/126 , C01G21/006 , C04B35/45 , C01P2002/30 , C01P2002/72 , C01P2002/77 , Y10S505/778 , Y10S505/779
摘要： A method for manufacturing a Pb-based Cu oxide superconductor. The method includes the steps of mixing powders of a raw material containing at least Pb, Sr, Ce, M, where M is at least one element selected from the group consisting of Y, La, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, and Lu, and Cu in a proportion to have the composition of the formula (I),Pb.sub.a (M.sub.1-x-y Ce.sub.x Sr.sub.y).sub.4 Cu.sub.3-a O.sub.z(I)where M is at least one element selected from the group consisting of Y, La, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, and Lu, and a, x, y, and z denote the numbers which satisfy 0.3.ltoreq.a.ltoreq.0.7, 0
摘要翻译：一种Pb系Cu氧化物超导体的制造方法。该方法包括混合至少含有Pb，Sr，Ce，M的原料的粉末的步骤，其中M是选自Y，La，Nd，Sm，Eu，Gd，Tb， Dy，Ho，Er，Yb和Lu，以及具有式（I）的组成的比例的Pba（M1-x-yCexSry）4Cu3-aOz（I），其中M是选自由Y，La，Nd，Sm，Eu，Gd，Tb，Dy，Ho，Er，Yb和Lu组成的组，a，x，y和z表示满足0.3 < = 0.7,0

3. 发明授权

US5190914A Superconducting material of metal oxides 失效
标题翻译：金属氧化物的超导材料
公开(公告)号：US5190914A
公开(公告)日：1993-03-02
申请号：US662457
申请日：1991-02-28
申请人： Shin-ichi Koriyama , Kazuhiro Sakuyama , Toshihiko Maeda , Hisao Yamauchi , Shoji Tanaka
发明人： Shin-ichi Koriyama , Kazuhiro Sakuyama , Toshihiko Maeda , Hisao Yamauchi , Shoji Tanaka
IPC分类号： C01G21/00 , C01G1/00 , C04B35/00 , C04B35/45 , H01B12/00 , H01B13/00 , H01L39/12 , H01L39/24
CPC分类号： H01L39/126 , Y10S505/779 , Y10S505/78 , Y10S505/781
摘要： A superconducting material is disclosed which includes oxides of metals having the following composition:(Pb.sub.1-z Cu.sub.z) ((Sr.sub.1-y Ba.sub.y).sub.1-v Ca.sub.v).sub.2 (A.sub.1-x Ca.sub.x)Cu.sub.2wherein A is at least one element selected from the group consisting of Y, La, Nd, Sm, Eu, Gd, Ho, Er, Yb and mixtures of at least one of Y, La, Nd, Sm, Eu, Gd, Ho, Er and Yb with at least one of Tb, Tm and Lu, x, y, v and z are numbers satisfying the following conditions:0.ltoreq.x.ltoreq.0.4,0.1.ltoreq.y

4. 发明授权

US5468724A High temperature oxide superconductor 失效
标题翻译：高温氧化物超导体
公开(公告)号：US5468724A
公开(公告)日：1995-11-21
申请号：US68587
申请日：1993-05-27
申请人： Takahiro Wada , Shin-ichi Koriyama , Takeshi Sakurai , Nobuo Suzuki , Takayuki Miyatake , Hisao Yamauchi , Naoki Koshizuka , Shoji Tanaka
发明人： Takahiro Wada , Shin-ichi Koriyama , Takeshi Sakurai , Nobuo Suzuki , Takayuki Miyatake , Hisao Yamauchi , Naoki Koshizuka , Shoji Tanaka
IPC分类号： C01G3/00 , C04B35/45 , H01L39/12 , H01B12/00
CPC分类号： C01G3/006 , C04B35/4504 , H01L39/126 , C01P2002/72 , C01P2002/77 , C01P2002/88 , C01P2004/80 , C01P2006/14 , Y10S505/779 , Y10S505/78
摘要： Disclosed herein are high-temperature oxide superconductors of RBa.sub.2 Cu.sub.4 O.sub.8 type, with Ba partly replaced by Sr or Ca, or with R and Ba partly replaced by Ca and Sr, respectively, as represented by the chemical composition formula of R(Ba.sub.1-y Sr.sub.y).sub.2 Cu.sub.4 O.sub.8 or R(Ba.sub.1-z Ca.sub.z).sub.2 Cu.sub.4 O.sub.8 or (R.sub.1-x Ca.sub.x) (Ba.sub.1-y Sr.sub.y).sub.2 Cu.sub.4 O.sub.8. They exhibit superconductivity at high temperatures. Especially, the last one exhibits superconductivity at a higher temperature than the former two. All of them can be made with a less amount of Ba as a deleterious substance, and the first two have improved sinterability. The best results are obtained when they are produced by the process involving the hot hydrostatic pressure treatment of the mixture of raw materials at 850.degree.-1100.degree. C. in an atmosphere composed of an inert gas and oxygen. The process permits a wider selection of Ba raw materials.
摘要翻译：本文公开了RBa2Cu4O8型的高温氧化物超导体，其中Ba部分被Sr或Ca取代，或者R和Ba分别被Ca和Sr部分替代，如R（Ba1-ySry）2Cu4O8的化学组成式所示或R（Ba1-zCaz）2 Cu4O8或（R1-xCax）（Ba1-ySry）2Cu4O8。它们在高温下表现出超导性。特别地，最后一个在比前两个更高的温度下表现出超导性。所有这些都可以用少量的Ba作为有害物质，前两种具有改善的烧结性。通过在惰性气体和氧气组成的气氛中，在850〜-1100℃的原料混合物进行热静水压处理的方法制造时，得到最好的结果。该过程允许更广泛地选择Ba原料。

5. 发明授权

US5262393A Layered copper oxides (R.sub.(1+x) Ce.sub.(2-x))Sr.sub.2 Cu.sub.2 (M.sub.1-y Cu.sub.y)O.sub.11 wherein R is a rare earth element and M is one or both of Pb and Tl 失效
标题翻译：层状铜氧化物（R（1 + x）Ce（2-x））Sr2Cu2（M1-yCuy）O11其中R是稀土元素，M是Pb和Tl中的一种或两种
公开(公告)号：US5262393A
公开(公告)日：1993-11-16
申请号：US781315
申请日：1991-10-25
申请人： Takahiro Wada , Ataru Ichinose , Kazuyuki Hamada , Hisao Yamauchi , Shoji Tanaka
发明人： Takahiro Wada , Ataru Ichinose , Kazuyuki Hamada , Hisao Yamauchi , Shoji Tanaka
IPC分类号： C01G15/00 , C01G1/00 , C01G21/02 , C04B35/45 , H01B3/12 , H01B12/00 , H01L39/12 , C01F11/02 , C01F17/00 , C01G3/02
CPC分类号： C04B35/4504 , C04B35/4512 , C04B35/4517 , Y10S505/775 , Y10S505/776 , Y10S505/783
摘要： The present invention provides a layered copper oxide as an insulator for superconductor or as a superconductor, which has a chemical composition represented by the formula of (R,Ce).sub.3 Sr.sub.2 Cu.sub.2 (M,Cu)O.sub.11, wherein R is a rare earth element other than Ce and M is one or both of Pb and T1, and has a crystal structure comprising a (M,Cu)Sr.sub.2 (R,Ce)Cu.sub.2 O.sub.7 ; unit of a TlBa.sub.2 CaCu.sub.2 O.sub.7 (1-2-1-2)-type structure and a [(R,Ce)O.sub.2 ].sub.2 unit of a fluorite-type structure alternately put on each other, or a chemical composition represented by the formula of (R,Ce).sub.3 Sr.sub.2 Cu.sub.2 (M,Cu)O.sub.10+z, wherein R is a rare earth element other than Ce, M is one or both of Pb or Tl, and has a crystal structure comprising a (R,Ce)Sr.sub.2 Cu.sub.2 (Cu,M)O.sub.6+z unit of a YBa.sub.2 Cu.sub.3 O.sub.3 O.sub.6+.delta. -type structure and a [(R,Ce)O.sub.2 ].sub.2 unit of a fluorite-type structure alternately put on each other, wherein z is in the range of 0.ltoreq.z.ltoreq.2 and .delta. is in the range of 0.ltoreq..delta..ltoreq.1.

6. 发明授权

US5217945A Oxide superconductors and method for producing same 失效
标题翻译：氧化物超导体及其制造方法
公开(公告)号：US5217945A
公开(公告)日：1993-06-08
申请号：US754996
申请日：1991-09-05
申请人： Takahiro Wada , Yuji Yaegashi , Ataru Ichinose , Nobuo Suzuki , Hisao Yamauchi , Shoji Tanaka
发明人： Takahiro Wada , Yuji Yaegashi , Ataru Ichinose , Nobuo Suzuki , Hisao Yamauchi , Shoji Tanaka
IPC分类号： C04B35/00 , C01G1/00 , C01G3/00 , C04B35/45 , H01B12/00 , H01B13/00 , H01L39/24
CPC分类号： C04B35/4504 , H01L39/2419 , Y10S505/779 , Y10S505/78
摘要： The present invention provides an oxide superconductor which has a relatively high transition temperature T.sub.c. This superconductor has the chemical formula (R.sub.1-x Ca.sub.x)(Ba.sub.1-y Sr.sub.y).sub.2 Cu.sub.3 O.sub.7-z wherein R is at least one rare earth element selected from the group consisting of Tm, Yb and Lu, x is with in the range of 0.1.ltoreq..times.0.5, y is within the range of 0.1.ltoreq. y .ltoreq.0.4 and z is within the range of 0.05 .ltoreq. z .ltoreq.(x/2+0.5). The invention further provides a method for producing the oxide superconductor which comprises firing a composition of the formula (R.sub.1-x Ca.sub.x)(Ba.sub.1-y Sr.sub.y).sub.2 Cu.sub.3 O.sub.7-z wherein R is at least one rare earth element selected from the group consisting of Tm, Yb and Lu, x is within the range of 0.1 .ltoreq..times..ltoreq.0.5 and y is within the range of 0.1 .ltoreq.y .ltoreq.0.4 at a temperature of from 750.degree. C. to the melting temperature of the composition under an oxygen partial pressure P(O.sub.2) of 0.001 atm .ltoreq.P(O.sub.2) .ltoreq.0.2 atm and then heat treating the composition to adjust the oxygen loss z to 0.05 .ltoreq.z .ltoreq.(x/2+0.5).

7. 发明授权

US5149683A Method for producing oxide superconductor 失效
标题翻译：生产氧化物超导体的方法
公开(公告)号：US5149683A
公开(公告)日：1992-09-22
申请号：US659637
申请日：1991-02-11
申请人： Takahiro Wada , Nobuo Suzuki , Ataru Ichinose , Yuji Yaegashi , Hisao Yamauchi , Shoji Tanaka
发明人： Takahiro Wada , Nobuo Suzuki , Ataru Ichinose , Yuji Yaegashi , Hisao Yamauchi , Shoji Tanaka
IPC分类号： C01G3/00 , C01G1/00 , C04B35/45 , H01B12/00 , H01B13/00 , H01L39/12 , H01L39/24
CPC分类号： C04B35/4504 , H01L39/126 , H01L39/2422 , Y10S505/779 , Y10S505/78
摘要： A method for producing an oxide superconductor formed according to a chemical composition formula (R.sub.1-x Ca.sub.x)(Ba.sub.1-y Sr.sub.y).sub.2 Cu.sub.4 O.sub.8 and having a transition temperature of 77K or above, comprising the step of causing a reaction between (R.sub.1-x Ca.sub.x)(Ba.sub.1-y Sr.sub.y).sub.2 Cu.sub.3 O.sub.7-z and a Cu material such as CuO, wherein R stands for one or more rare earth elements selected from the group consisting of Y, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm and Yb, and wherein 0.01.ltoreq.x.ltoreq.0.25, 0.ltoreq.y.ltoreq.0.5, and 0.ltoreq.z.ltoreq.1. The advantage of this production method is that this production method does not require a hot static pressing process which takes a long time.

8. 发明授权

US5670457A Oxide superconductor and method of producing same 失效
标题翻译：氧化物超导体及其制造方法
公开(公告)号：US5670457A
公开(公告)日：1997-09-23
申请号：US356640
申请日：1994-12-15
申请人： Seiji Adachi , Changqin Jin , Xiao-Jing Wu , Hisao Yamauchi , Shoji Tanaka
发明人： Seiji Adachi , Changqin Jin , Xiao-Jing Wu , Hisao Yamauchi , Shoji Tanaka
IPC分类号： C01G1/00 , C01G3/00 , H01B12/00 , H01B13/00 , H01L39/12 , C04B35/01 , C04B35/03
CPC分类号： H01L39/126 , Y10S505/776 , Y10S505/778
摘要： An oxide superconductor composed of Cu, O and at least one of Ba, Sr and Ca and including alternately arranged at least one oxygen-deficient perovskite structure section and at least one infinite layer structure section, wherein the perovskite structure section consists of two first atomic layers and a second atomic layer sandwiched between the first layers, and wherein the infinite layer structure section consists of alternately arranged, third and fourth atomic layers. Each of the first layers consists of O and an element M.sup.1 selected from Ba, Sr and Ca and has an atomic ratio O/M.sup.1 of 1 or less, while the second layer consists of O and Cu and has an atomic ratio O/Cu of 2 or less. Each of the third layers consists of O and Cu and has an atomic ratio O/Cu of 2, while each of the fourth layers consists of an element M.sup.2 selected from Ba, Sr and Ca. A superconductor having a superconducting critical temperature of over 100 K. may be produced by heat treatment at 800.degree.-1,200.degree.C. under a super-high pressure of 20,000-80,000 atm.
摘要翻译：由Cu，O和Ba，Sr和Ca中的至少一种构成的氧化物超导体，包括交替排列至少一个缺氧钙钛矿结构部分和至少一个无限层结构部分，其中钙钛矿结构部分由两个第一原子层和夹在第一层之间的第二原子层，并且其中无限层结构部分由交替排列的第三和第四原子层组成。每个第一层由O和选自Ba，Sr和Ca的元素M1组成，并且具有1或更小的原子比O / M1，而第二层由O和Cu组成，并且原子比O / Cu为 2以下。每个第三层由O和Cu组成，并且原子比O / Cu为2，而每个第四层由选自Ba，Sr和Ca的元素M2组成。具有超导临界温度超过100K的超导体可以通过在20000-80,000大气压的超高压下在800-1200℃下进行热处理来制备。

9. 发明授权

US5599775A (Hg Cu)Bg.sub.2 Ca.sub.2 Cu.sub.3 Oy oxide superconductor and method of preparing the same 失效
标题翻译：（Hg Cu）Bg2Ca2Cu3Oy氧化物超导体及其制备方法
公开(公告)号：US5599775A
公开(公告)日：1997-02-04
申请号：US591990
申请日：1996-01-26
申请人： Makoto Itoh , Ayako Yamamoto , Kazuyuki Isawa , Seiji Adachi , Hisao Yamauchi , Shoji Tanaka
发明人： Makoto Itoh , Ayako Yamamoto , Kazuyuki Isawa , Seiji Adachi , Hisao Yamauchi , Shoji Tanaka
IPC分类号： C01G1/00 , C01G13/00 , C04B35/00 , C04B35/45 , H01B12/00 , H01B13/00 , H01L39/12 , H01L39/24
CPC分类号： H01L39/2419 , H01L39/126 , Y10S505/725 , Y10S505/739 , Y10S505/742 , Y10S505/779
摘要： Provided is an Hg--Ba--Ca--Cu--O oxide superconductor having a high superconductivity transition temperature Tc and a method which can prepare the same in excellent reproducibility. This oxide superconductor consists essentially of Hg, Ba, Ca, Cu and O, and is expressed in a chemical formula (Hg.sub.1-X Cu.sub.X)Ba.sub.2 Ca.sub.2 Cu.sub.3 O.sub.y, wherein X=0.05 to 0.7 and Y=8 to 8.75. A method of preparing the oxide superconductor comprises a step of mixing raw materials of Hg, Ba, Ca and Cu with each other so that (Hg+Ba):Ca:Cu =b:1:C and Hg:Ba=(1-a):a, wherein 0.625.ltoreq.a.ltoreq.0.714, 1.ltoreq.b.ltoreq.3 and 1.667.ltoreq.c.ltoreq.3.444, in mole ratio, and compression-molding the mixture, and a step of heat treating a compact obtained by the compression molding. This oxide superconductor has a superconductivity transition temperature Tc of 134 K, which is the highest at present.
摘要翻译：提供具有高超导转变温度Tc的Hg-Ba-Ca-Cu-O氧化物超导体和可以以优异的再现性制备它的方法。该氧化物超导体主要由Hg，Ba，Ca，Cu和O组成，并以化学式（Hg1-XCuX）Ba2Ca2Cu3Oy表示，其中X = 0.05〜0.7，Y = 8〜8.75。制备氧化物超导体的方法包括将Hg，Ba，Ca和Cu的原料彼此混合以使（Hg + Ba）：Ca：Cu = b：1：C和Hg：Ba =（1- a）：a，其中以摩尔比0.625

10. 发明授权

US5244871A N-type oxide superconductor represented by the formula (Nd.sub.x (Ce.sub.y L.sub.z).sub.2 CuO.sub.4-d where L is La, Mg or a mixture of alakaline earth elements 失效
标题翻译：由式（Ndx（CeyLz）2CuO4-d表示的N型氧化物超导体，其中L是La，Mg或碱土金属元素的混合物
公开(公告)号：US5244871A
公开(公告)日：1993-09-14
申请号：US772123
申请日：1991-10-09
申请人： Takeshi Sakurai , Toru Yamashita , Hisao Yamauchi , Shoji Tanaka
发明人： Takeshi Sakurai , Toru Yamashita , Hisao Yamauchi , Shoji Tanaka
IPC分类号： C01G3/00 , C04B35/45 , H01L39/12
CPC分类号： C01G3/006 , C04B35/4504 , H01L39/126 , Y10S505/775 , Y10S505/779 , Y10S505/80 , Y10S505/801 , Y10S505/809 , Y10S505/81
摘要： An oxide superconductor comprises a composition represented by the composition formula: (Nd.sub.x --Ce.sub.y --L.sub.z).sub.2 CuO.sub.4-d (wherein L is an element selected from Ca and Mg, and x+y+z=1). The compositions of Nd, Ce and L of the oxide superconductor corresponds to a point falling inside an area of Nd--Ce--L ternary diagram surrounded by straight lines (A-B), (B-C), (C-D) and (D-A) connecting point (A) with point (B), point (B) with point (C), point (C) with point (D) and point (D) with point (A), respectively, the points (A), (B), (C) and (D) being points (x=1, y=0, z=0), (x=0.4, y=0.6, z=0), (x=0.4, y=0.3, z=0.3) and (x=0.1, y=0, z=0.9), respectively, in the Nd--Ce--L ternary diagram. Above-described Nd--Ce--L--Cu--O oxides can exhibit superconductivity within a wide range of composition when heat-treated in an atmosphere of nitrogen.
摘要翻译：氧化物超导体包括由组成式（Nd x -Cey-Lz）2 CuO 4 -d（其中L是选自Ca和Mg，x + y + z = 1的元素）表示的组合物。氧化物超导体的Nd，Ce和L的组成对应于由直线（AB），（BC），（CD）和（DA）连接点包围的Nd-Ce-L三元图形区域内的点（A），（B），（B），点（B），点（C），点（C）和点（D）和点（D）（x = 0.4，y = 0.6，z = 0），（x = 0.4，y = 0.3，z = 0.3）（C）和（D）和Nd-Ce-L三元图中的（x = 0.1，y = 0，z = 0.9）。当在氮气气氛中进行热处理时，上述Nd-Ce-L-Cu-O氧化物可在宽范围的组成范围内表现出超导性。

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