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15 条记录 (耗时 0.033 秒)

    Actuator
    1.
    发明授权
    Actuator 失效
    执行器

    公开(公告)号：US4862029A

    公开(公告)日：1989-08-29

    申请号：US145861

    申请日：1988-01-20

    申请人： Kiyoshi Kasai ,  Naomichi Sakai ,  Tomoyuki Oikawa ,  Kenji Uchino ,  Takaaki Tsukidate ,  Hiroshi Asakura ,  Hiroshi Yamamura ,  Hiroya Nagata

    发明人： Kiyoshi Kasai ,  Naomichi Sakai ,  Tomoyuki Oikawa ,  Kenji Uchino ,  Takaaki Tsukidate ,  Hiroshi Asakura ,  Hiroshi Yamamura ,  Hiroya Nagata

    IPC分类号： C04B35/465 ,  C04B35/486 ,  C04B35/491 ,  H01L41/187

    CPC分类号： C04B35/465 ,  C04B35/486 ,  C04B35/491 ,  H01L41/094 ,  H01L41/1876

    摘要： An actuator of the present invention is composed of a monomorph-type piezoelectric ceramic. The monomorph-type piezoelectric ceramic is a BaTiO.sub.3 -based ceramic, a PZT based ceramic having Nb, Sb, La, Mn, Nd and Bi, BaTiO.sub.3 --SrTiO.sub.3 -based ceramic containing SrTiO.sub.3 by 20 to 35 mole %, K(Nb, Ta)O.sub.3 -based ceramic, or a ceramic represented by a general formula: [Pb, (A.sub.1/2 B.sub.1/2)](Zr.sub.1-n, Cn)O.sub.3 where A is a monovalent element such as Li, Na, K, Rb, Cs or the like, B is a trivalent element such as Bi, La, Y, Sb, Ga or the like, A and B being both replaceable solid-meltable elements for Pb, C is an element such as Ti, Sn or the like that is a replaceable solid-meltable element for Zr, and n is from 0 to 0.8.

    摘要翻译： 本发明的致动器由单晶型压电陶瓷构成。 单晶型压电陶瓷是一种BaTiO3系陶瓷，具有Nb，Sb，La，Mn，Nd和Bi，BaTiO3-SrTiO3系陶瓷的PZT系陶瓷，含有20〜35摩尔％的SrTiO 3，K（Nb，Ta ）或由通式[Pb，（A1 / 2B1 / 2）]（Zr1-n，Cn）O3表示的陶瓷，其中A是Li，Na，K，Rb等的一价元素， Cs等，B是Bi，La，Y，Sb，Ga等的三价元素，A和B都是Pb的可固态可固化元素，C是Ti，Sn等元素 其是用于Zr的可替换的固体可熔性元素，n为0至0.8。

    Process for preparation of high .alpha.-type silicon nitride powder
    3.
    发明授权
    Process for preparation of high .alpha.-type silicon nitride powder 失效
    高α型氮化硅粉末的制备方法

    公开(公告)号：US4770830A

    公开(公告)日：1988-09-13

    申请号：US943624

    申请日：1986-12-18

    申请人： Toshihiko Arakawa ,  Kuniyoshi Ueda ,  Naomichi Sakai ,  Takaaki Tsukidate

    发明人： Toshihiko Arakawa ,  Kuniyoshi Ueda ,  Naomichi Sakai ,  Takaaki Tsukidate

    IPC分类号： C01B21/068 ,  C01B33/06

    CPC分类号： B82Y30/00 ,  C01B21/0687 ,  C01P2004/50 ,  C01P2004/64 ,  C01P2006/10

    摘要： Disclosed is a process for the preparation of high .alpha.-type silicon nitride powder, wherein a nitrogen-containing silane compound and/or amorphous silicon nitride is crystallized to form crystalline silicon nitride. In this process, crystalline silicon nitride having a particle size not larger than 0.05 .mu.m is incorporated in an amount of at least 0.1% by weight into the nitrogen-containing silane compound and/or amorphous silicon nitride, the mixture is formed into a power or molded body having a powder bulk density of at least 0.1 g/cm.sup.3 as silicon, and the powder or molded body is heated to 1,350.degree. to 1,700.degree. C. while controlling the temperature-elevating rate to at least 15.degree. C./min throughout the temperature range of from 1,200.degree. to 1,350.degree. C. The resulting high .alpha.-type silicon nitride is composed of a fine granular crystal and the does not contain a needle crystal or columnar crystal.

    摘要翻译： 公开了一种制备高α型氮化硅粉末的方法，其中含氮硅烷化合物和/或非晶氮化硅结晶以形成结晶氮化硅。 在该方法中，将粒径不大于0.05μm的结晶氮化硅以至少0.1重量％的量掺入含氮硅烷化合物和/或非晶氮化硅中，将该混合物形成为电力 或具有至少0.1g / cm 3的粉末堆积密度的成型体作为硅，并将粉末或模塑体加热至1350℃至1,700℃，同时将升温速率控制在至少15℃/分钟 在1200-11350℃的温度范围内。所得到的高α型氮化硅由细晶粒状晶体构成，不含有针晶或柱状晶体。

    Superconductor and method of producing same
    4.
    发明授权
    Superconductor and method of producing same 失效
    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。

    Composite of high-temperature superconductive bulk form with coil magnet
    5.
    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。