Method for fabricating multiwound microcoils embedded in a ceramic
substrate
    21.
    发明授权
    Method for fabricating multiwound microcoils embedded in a ceramic substrate 失效
    用于制造埋在陶瓷基片中的多重绕线圈的方法

    公开(公告)号:US5779969A

    公开(公告)日:1998-07-14

    申请号:US879546

    申请日:1997-06-20

    IPC分类号: H01F41/04 C04B33/34

    摘要: A method for fabricating a multiwound microcoil embedded in a ceramic substrate including the steps of forming a sacrificial multiwound microcoil, having a melting temperature greater than the sintering temperature of the ceramic material to be used as the ceramic substrate by wrapping a first sacrificial coil winding in a helical fashion on the midsection of a sintered ceramic bar thereby forming a one winding sacrificial coil structure; wrapping a first layer of tape cast ceramic material around the midsection of said one winding sacrificial coil structure thereby forming a first coated one winding sacrificial coil structure; wrapping a second sacrificial coil winding in a helical fashion on the midsection of said first coated one winding sacrificial coil structure thereby forming a two winding sacrificial coil structure. The method further includes forming green ceramic material into the shape of the ceramic substrate incorporating said formed sacrificial multiwound microcoil; sintering the green ceramic material; removing the sacrificial multiwound microcoil from the sintered ceramic substrate; flowing molten electrically conductive material into the space relinquished by the removed sacrificial multiwound microcoil; and cooling the molten electrically conductive material to fabricate the multiwound microcoil embedded in a ceramic substrate.

    摘要翻译: 一种嵌入在陶瓷基片中的多绕组微线圈的制造方法,包括以下步骤:形成牺牲性多绕组微线圈,其熔融温度大于用作陶瓷衬底的陶瓷材料的烧结温度,包括第一牺牲线圈绕组 在烧结陶瓷棒的中部上是螺旋形的,从而形成一个缠绕的牺牲线圈结构; 在所述一个绕组牺牲线圈结构的中部周围缠绕第一层带状陶瓷材料,从而形成第一涂覆的单绕组牺牲线圈结构; 以螺旋方式将第二牺牲线圈绕组缠绕在所述第一涂覆的单绕组牺牲线圈结构的中部,从而形成两绕组牺牲线圈结构。 该方法还包括将生坯陶瓷材料形成为包含所述形成的牺牲多绕组线圈的陶瓷衬底的形状; 烧结绿色陶瓷材料; 从烧结陶瓷基板上去除牺牲多重绕线圈; 将熔融的导电材料流入由去除的牺牲多绕组微线圈放出的空间中; 并冷却熔融的导电材料以制造嵌入在陶瓷衬底中的多重绕组微线圈。

    Method of making air lubricated hydrodynamic ceramic bearings
    22.
    发明授权
    Method of making air lubricated hydrodynamic ceramic bearings 失效
    制造空气润滑的流体动力陶瓷轴承的方法

    公开(公告)号:US5730928A

    公开(公告)日:1998-03-24

    申请号:US701895

    申请日:1996-08-23

    摘要: A method of making a hydrodynamic ceramic bearing includes the steps of providing ceramic powder comprising a first concentration of particulate aluminum oxide and a second concentration of particulate zirconium oxide alloy. The zirconium oxide alloy consists essentially of zirconium oxide and a the group consisting of MgO, CaO, Y.sub.2 O.sub.3, Sc.sub.2 O.sub.3, and rare earth oxides. The zirconium oxide alloy has a concentration of the secondary oxide of, in the case of Y.sub.2 O.sub.3, about 0.5 to about 5 mole percent; in the case of MgO, about 0.1 to about 1.0 mole percent, in the case of CeO.sub.2, about 0.5 to about 15 mole percent, in the case of Sc.sub.2 O.sub.3, about 0.5 to about 7.0 mole percent and in the case of CaO from about 0.5 to about 5 mole percent, relative to the total of the zirconium oxide alloy, the compacting further comprising forming a blank. A mold is provided for receiving and processing the ceramic powder thereby forming a ceramic billet. Shaping of the ceramic billet is undertaken to form a near net-shaped ceramic bearing. Thereafter, the near net-shaped ceramic bearing is sintered resulting in a sintered ceramic bearing. After sintering, the ceramic bearing is further shaped or machined. After forming the ceramic bearing, at least two air inlet ports are formed in the body portion of the bearing in fluid communication with air channels having preferably a spiral pattern formed in at least one flange portion of the bearing.

    摘要翻译: 制造流体动力陶瓷轴承的方法包括提供包含第一浓度的颗粒状氧化铝和第二浓度的颗粒状氧化锆合金的陶瓷粉末的步骤。 氧化锆合金主要由氧化锆和由MgO,CaO,Y2O3,Sc2O3和稀土氧化物组成的组成。 氧化锆合金的氧化亚氮浓度在Y 2 O 3的情况下为约0.5至约5%(摩尔); 在MgO的情况下,在CeO 2的情况下,约0.1至约1.0摩尔%,在Sc 2 O 3的情况下为约0.5至约15摩尔%,约0.5至约7.0摩尔%,在CaO为约0.5的情况下 至约5摩尔%,相对于氧化锆合金的总量,压实还包括形成坯料。 提供用于接收和加工陶瓷粉末的模具,从而形成陶瓷坯料。 进行陶瓷坯料的成形以形成接近网状的陶瓷轴承。 此后,将近网状陶瓷轴承烧结,得到陶瓷陶瓷轴承。 烧结后,陶瓷轴承进一步成型或加工。 在形成陶瓷轴承之后,至少两个空气入口端口形成在轴承的主体部分中,其中空气通道具有优选地形成在轴承的至少一个凸缘部分中的螺旋图案的空气通道。

    Zirconia ceramics and a process of producing the same
    25.
    发明授权
    Zirconia ceramics and a process of producing the same 失效
    氧化锆陶瓷及其生产工艺

    公开(公告)号:US5336282A

    公开(公告)日:1994-08-09

    申请号:US999171

    申请日:1992-12-21

    CPC分类号: C04B35/64 C04B35/486

    摘要: A zirconia ceramic having a tetragonal phase crystal grain structure and a process for producing same. The ceramic comprises zirconium oxide and a dopant that is an oxide of a rare earth element, calcium, or magnesium, or mixtures thereof, and the ceramic has a molar ratio of dopant to zirconium oxide in the range of from above about 3:97 to about 5:95 when the ceramic comprises less than about 0.5 mole percent of the oxide of magnesium, the ceramic has a molar ratio of dopant to zirconium oxide in the range of from about 0.5:99.5 to about 1.0:99.0 when the ceramic comprises from about 0.5 mole percent to about 1.0 mole percent of the oxide of magnesium, and the ceramic does not comprise more than about 1.0 mole percent of the oxide of magnesium.

    摘要翻译: 具有四方相晶粒结构的氧化锆陶瓷及其制造方法。 陶瓷包括氧化锆和作为稀土元素,钙或镁的氧化物或其混合物的掺杂剂,并且陶瓷的掺杂剂与氧化锆的摩尔比在约3:97至高于约3:97至 约5:95当陶瓷包含小于约0.5摩尔%的镁氧化物时,陶瓷的掺杂剂与氧化锆的摩尔比在约0.5:99.5至约1.0:99.0的范围内,当陶瓷由 约0.5摩尔%至约1.0摩尔%的镁氧化物,并且陶瓷不包含大于约1.0摩尔%的镁氧化物。

    Materials feeder equipment
    28.
    发明授权
    Materials feeder equipment 失效
    物料送料设备

    公开(公告)号:US06235233B1

    公开(公告)日:2001-05-22

    申请号:US09384533

    申请日:1999-08-27

    IPC分类号: C04B3700

    摘要: An improved materials feeder equipment includes highly efficient, durable, and wear and abrasion resistant sliding contact elements. In particular, the equipment has a feeder box and a ware plate arranged for sliding contact, each having high precision tetragonal zirconia polycrystal (TZP) ceramic or, alternatively, zirconia-alumina composite.

    摘要翻译: 改进的材料馈送设备包括高效,耐用,耐磨和耐磨滑动接触元件。 具体来说,该设备具有用于滑动接触的馈送盒和器皿,每个具有高精度四方晶氧化锆多晶(TZP)陶瓷,或者氧化锆 - 氧化铝复合材料。

    Apparatus and method for conveying abrasive web of indeterminate length
    29.
    发明授权
    Apparatus and method for conveying abrasive web of indeterminate length 失效
    用于输送不确定长度的磨料网的设备和方法

    公开(公告)号:US06206264B1

    公开(公告)日:2001-03-27

    申请号:US09080794

    申请日:1998-05-18

    IPC分类号: B65H2000

    摘要: An apparatus (10) for conveying abrasive web (16) of indeterminate length, such as photographic media, has first and second closely spaced rollers (12, 14) with at least one of the rollers (12, 14) having a polymeric/inorganic composite media bearing surface (70). The abrasive web or media (16) is disposed between a nip (18) defined by the close spacing between the rollers (12, 14) and is in moving contact with the polymeric/inorganic composite media bearing surface (70) while being conveyed through the nip (18).

    摘要翻译: 用于输送不确定长度的磨料网(16)的设备(10),例如照相介质,具有第一和第二紧密间隔的辊(12,14),其中至少一个辊(12,14)具有聚合/无机 复合介质承载面(70)。 研磨幅材或介质(16)设置在由辊(12,14)之间的紧密间隔限定的辊隙(18)之间,并且与聚合物/无机复合介质承载表面(70)移动接触,同时被传送通过 辊隙(18)。

    Method of making integrated hybrid silicon-based micro-actuator devices
    30.
    发明授权
    Method of making integrated hybrid silicon-based micro-actuator devices 失效
    制造集成混合硅基微致动器装置的方法

    公开(公告)号:US06171886B2

    公开(公告)日:2001-01-09

    申请号:US09109124

    申请日:1998-06-30

    IPC分类号: H01L2714

    摘要: A method of making micro-actuator devices including a silicon wafer, a magnet positioned inside an insulated actuating chamber having electrical coil wound around its circumference thereby forming an electromagnet assemblage. A plurality of etched holes in silicon wafer receives the electromagnet assemblage and is adapted to produce a magnetic field in response to an applied current that acts on the magnet to cause the axial reciprocating motion of the magnet.

    摘要翻译: 一种制造微型致动器装置的方法,其包括硅晶片,位于绝缘致动室内部的磁体,该绝缘驱动室具有围绕其圆周缠绕的电线圈,从而形成电磁体组件。 硅晶片中的多个蚀刻孔接收电磁体组合,并且适于响应于作用在磁体上的施加电流产生磁场以引起磁体的轴向往复运动。