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165 条记录 (耗时 0.028 秒)

    Method of preparing metal oxide crystal
    151.
    发明授权
    Method of preparing metal oxide crystal 失效
    制备金属氧化物晶体的方法

    公开(公告)号：US5602081A

    公开(公告)日：1997-02-11

    申请号：US240068

    申请日：1994-05-09

    申请人： Masaru Nakamura ,  Yasuji Yamada ,  Minoru Tagami ,  Yuh Shiohara ,  Shoji Tanaka

    发明人： Masaru Nakamura ,  Yasuji Yamada ,  Minoru Tagami ,  Yuh Shiohara ,  Shoji Tanaka

    IPC分类号： C30B15/00 ,  C30B15/32 ,  C30B15/02 ,  C30B29/16 ,  C30B29/22

    CPC分类号： C30B29/225 ,  C30B15/32 ,  Y10S505/729

    摘要： A method of preparing a crystal of a Y-series 123 metal oxide is disclosed, in which a substrate is immersed in a liquid phase which comprises components constituting the metal oxide. The liquid phase contains a solid phase located at a position different from the position at which the substrate contacts the liquid phase. The solid phase provides the liquid phase with solutes which constitute the Y-series 123 metal oxide so that the solutes are transported to the position at which the substrate and the liquid phase contact, thereby permitting the Y-series 123 metal oxide to grow on the substrate as primary crystals.

    摘要翻译： 公开了一种制备Y系123金属氧化物晶体的方法，其中将基片浸入包含构成金属氧化物的组分的液相中。 液相包含位于不同于基板与液相接触的位置的位置的固相。 固相为构成Y系123金属氧化物的溶质提供液相，使得溶质输送到基板和液相接触的位置，从而允许Y系列123金属氧化物在 底物作为主要晶体。

    Sliding member with hard ternery film
    152.
    发明授权
    Sliding member with hard ternery film 失效
    滑动构件，硬质薄膜

    公开(公告)号：US5601293A

    公开(公告)日：1997-02-11

    申请号：US575329

    申请日：1995-12-20

    申请人： Hiroto Fukutome ,  Nobuyuki Yamashita ,  Shoji Tanaka

    发明人： Hiroto Fukutome ,  Nobuyuki Yamashita ,  Shoji Tanaka

    IPC分类号： C23C14/06 ,  C23C14/32 ,  F16J9/26

    CPC分类号： C23C14/325 ,  C23C14/0641 ,  F16J9/26

    摘要： A hard film is formed on the outer circumferential surface of a piston ring by means of a physical vapor deposition process. The hard film is a ternary film comprising molybdenum, chromium, and 4 to 22 percent nitrogen by weight, and includes at least molybdenum nitride and chromium nitride. The film has a Vickers hardness of 1400 to 2600, and the crystal grain size of the film is less than 1 .mu.m.

    摘要翻译： 通过物理气相沉积工艺在活塞环的外圆周表面上形成硬膜。 硬膜是包含钼，铬和按重量计为4至22％的氮的三元膜，并且至少包括氮化钼和氮化铬。 该膜的维氏硬度为1400〜2600，膜的晶粒尺寸小于1μm。

    Composite of high-temperature superconductive bulk form with coil magnet
    154.
    发明授权
    Composite of high-temperature superconductive bulk form with coil magnet 失效
    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。

    Oxide superconductor and process for producing the same
    158.
    发明授权
    Oxide superconductor and process for producing the same 失效
    氧化物超导体及其制造方法

    公开(公告)号：US5284822A

    公开(公告)日：1994-02-08

    申请号：US695813

    申请日：1991-05-07

    申请人： Takenobu Sakai ,  Kozi Nishio ,  Naoyuki Ogawa ,  Izumi Hirabayashi ,  Shoji Tanaka

    发明人： Takenobu Sakai ,  Kozi Nishio ,  Naoyuki Ogawa ,  Izumi Hirabayashi ,  Shoji Tanaka

    IPC分类号： C04B35/00 ,  C01G1/00 ,  C01G3/00 ,  C04B35/45 ,  C04B35/653 ,  H01B12/10 ,  H01B13/00 ,  H01L39/12 ,  H01L39/24 ,  H01L39/00

    CPC分类号： C04B35/4512 ,  C04B35/4504 ,  C04B35/4508 ,  C04B35/653 ,  H01L39/126 ,  Y10S428/93 ,  Y10S505/729 ,  Y10S505/785

    摘要： Disclosed are an oxide superconductor, and an optimum process for producing the same. The oxide superconductor comprises a base material phase including an oxide superconducting material, the oxide superconducting material including barium (Ba) at least and being free from grain boundaries, and precipitation phases contained in an amount of 1 to 50% by volume in the base material phase and dotted therein in a manner like islands, the precipitation phases being oxides of a metal selected from the group consisting of silicon (Si), aluminum (Al), zirconium (Zr), magnesium (Mg), titanium (Ti), strontium (Sr), tungsten (W), cobalt (Co) and vanadium (V), and being products of decomposition reaction of the base material phase. In the production process, the constituent materials are treated thermally at a partially melting temperature in order to give the above-described novel structure to the oxide superconductor. Thus, the precipitation phases are dotted in a manner like islands in a sea of the base material phase being free from the grain boundaries, and the precipitation phases work as the pinning centers. Therefore, the oxide superconductor exhibits a high "Jc" value.

    摘要翻译： 公开了一种氧化物超导体及其制造方法。 氧化物超导体包括含有氧化物超导材料的基体材料相，氧化物超导材料至少包含钡（Ba）并且不含晶界，沉淀相在基材中的含量为1〜50体积％ 相，点状，析出相为选自硅（Si），铝（Al），锆（Zr），镁（Mg），钛（Ti），锶等的金属的氧化物 （Sr），钨（W），钴（Co）和钒（V），并且是基材相分解反应的产物。 在制造工序中，在部分熔融温度下对构成材料进行热处理，以使氧化物超导体具有上述新颖的结构。 因此，沉淀相以基材相的海中的岛离开晶界的方式点着，沉淀相作为钉扎中心起作用。 因此，氧化物超导体表现出高的“Jc”值。

    Oxide superconductors and method for producing same
    160.
    发明授权
    Oxide superconductors and method for producing same 失效
    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).