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    Smooth surface ceramic composites
    11.
    发明申请
    Smooth surface ceramic composites 审中-公开
    光滑表面陶瓷复合材料

    公开(公告)号：US20100081350A1

    公开(公告)日：2010-04-01

    申请号：US12286660

    申请日：2008-09-30

    申请人： Brock S. McCabe ,  David B. Marshall

    发明人： Brock S. McCabe ,  David B. Marshall

    IPC分类号： B32B5/02 ,  B29C39/00

    CPC分类号： C04B35/62873 ,  C04B35/565 ,  C04B35/62868 ,  C04B35/62881 ,  C04B35/803 ,  C04B35/806 ,  C04B2235/5224 ,  C04B2235/5228 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/5256 ,  C04B2235/5272 ,  C04B2235/5276 ,  C04B2235/614 ,  C04B2235/616 ,  Y10T442/2557 ,  Y10T442/2975 ,  Y10T442/2984

    摘要： A method of making a smooth surfaced, fiber reinforced ceramic matrix composite includes the steps of providing a fiber preform, the preform having a surface containing voids; placing fibers into the voids; coating the preform fibers and the void fibers with a coating material to create a weak interface; and infiltrating the coated fibers with a matrix material to infill the voids and preform, and form strongly bonded networks within the voids. Alternatively, the resulting smooth surfaced, fiber reinforced ceramic matrix composite may include, in addition to the first coating material on the preform fibers and the void fibers and the matrix material within the coated fibers and the preform to infill the voids and preform, a second coating material on the preform fibers and the void fibers, creating a second coating of substantially uniform thickness on the fibers and forming strongly bonded networks within the voids.

    摘要翻译： 一种制备光滑表面的纤维增强陶瓷基质复合材料的方法包括提供纤维预制件的步骤，该预型件具有包含空隙的表面; 将纤维放入空隙中; 用涂层材料涂覆预成型纤维和空隙纤维以产生弱界面; 并用基质材料渗透涂覆的纤维以填充空隙和预制件，并在空隙内形成牢固粘合的网络。 或者，所得到的光滑表面的纤维增强陶瓷基质复合材料除了预成型件上的第一涂层材料和空心纤维之外，还可以包括涂覆的纤维内的基体材料和预制件以填充空隙和预制件， 在预成型纤维和空隙纤维上涂覆材料，在纤维上产生基本上均匀厚度的第二涂层，并在空隙内形成牢固粘合的网络。

    Method of joining ceramic matrix composites and metals
    12.
    发明授权
    Method of joining ceramic matrix composites and metals 有权
    陶瓷基复合材料与金属的接合方法

    公开(公告)号：US06758386B2

    公开(公告)日：2004-07-06

    申请号：US09954753

    申请日：2001-09-18

    申请人： David B. Marshall ,  Min Z Berbon ,  John R. Porter

    发明人： David B. Marshall ,  Min Z Berbon ,  John R. Porter

    IPC分类号： B23K3102

    CPC分类号： F16L25/0072 ,  Y10T428/249928

    摘要： A method of joining a ceramic matrix composite rocket nozzle to a metal manifold is provided, wherein a silicon nitride insert is disposed inside the ceramic matrix composite rocket nozzle and the metal manifold to provide a joint therebetween. The silicon nitride insert is preferably co-processed with the ceramic matrix composite rocket nozzle such that the ceramic matrix provides a bond between the rocket nozzle and the insert. The metal manifold is then secured to the silicon nitride insert, preferably using brazing, to form a joint assembly.

    摘要翻译： 提供了一种将陶瓷基复合火箭喷嘴接合到金属歧管的方法，其中在陶瓷基体复合火箭喷嘴和金属歧管内部设置有氮化硅插入件以在其间提供接合。 氮化硅插入件优选与陶瓷基体复合火箭喷嘴共同处理，使得陶瓷基体在火箭喷嘴和插入件之间提供接合。 然后将金属歧管固定到氮化硅插入件，优选使用钎焊，以形成接头组件。

    USE OF MONAZITE OR XENOTIME SOLUTION PRECURSORS TO INCREASE THE DENSITY AND SHEAR STRENGTH OF OXIDE COMPOSITES
    13.
    发明申请
    USE OF MONAZITE OR XENOTIME SOLUTION PRECURSORS TO INCREASE THE DENSITY AND SHEAR STRENGTH OF OXIDE COMPOSITES 有权
    使用MONAZITE或XENOTIME解决方案前提物提高氧化复合材料的密度和剪切强度

    公开(公告)号：US20140065292A1

    公开(公告)日：2014-03-06

    申请号：US12044336

    申请日：2008-03-07

    申请人： David B. Marshall ,  Janet B. Davis ,  Peter D. Morgan

    发明人： David B. Marshall ,  Janet B. Davis ,  Peter D. Morgan

    IPC分类号： C04B41/45 ,  C04B41/87

    CPC分类号： C04B41/4596 ,  C04B35/447 ,  C04B35/62881 ,  C04B35/803 ,  C04B41/87 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/443 ,  C04B2235/447 ,  C04B2235/5224 ,  C04B2235/5445 ,  C04B2235/616

    摘要： Aqueous precursor solutions are described that comprise at least one monazite-based material precursor, at least one xenotime-based material precursor or a combination thereof; and a plurality of fine suspended particles of an oxide material. Contemplated oxide composites, as described herein, comprise a plurality of fibers surrounded by at least one monazite or xenotime-based material, wherein the oxide composite has nearly a fully dense matrix. Contemplated embodiments disclosed herein provides a method for producing an oxide composite with nearly fully dense matrix and with all fibers surrounded by a monazite- or xenotime-based material that prevents embrittlement at temperatures at least as high as 1200° C. Oxide composites are described that contain a plurality of fibers, a matrix containing at least one or more oxide materials, and at least one monazite-based material, xenotime-based material or combination thereof, wherein the monazite-based or xenotime-based material is formed from the aqueous precursor solutions disclosed herein. Contemplated methods of production include: a) providing a composite comprising oxide-reinforcing fibers and a porous matrix of oxide materials, and b) infiltrating the porosity in the matrix with a solution that contains precursors for at least one monazite-based material, at least one xenotime-based material or a combination thereof; and c) heat treating the composite to convert the precursors to monazite, xenotime, or combinations thereof.

    摘要翻译： 描述了包含至少一种独居石基材料前体，至少一种基于堇青石的材料前体或其组合的水性前体溶液; 和多个细小的氧化物悬浮颗粒。 如本文所述，沉积的氧化物复合材料包含被至少一种独居石或基于堇青石的材料包围的多个纤维，其中氧化物复合材料具有几乎完全致密的基质。 本文公开的考虑的实施例提供了一种用于生产具有几乎完全致密的基质的氧化物复合材料的方法，并且所有的纤维都被独立铁矿或堇青石基材料包围，以防止在至少高达1200℃的温度下的脆化。氧化物复合材料被描述为 含有多个纤维，含有至少一种或多种氧化物材料的基质，以及至少一种独居石类材料，堇青石类材料或其组合，其中所述独居石类或堇青石类材料由水性前体形成 本文公开的解决方案。 考虑的生产方法包括：a）提供包含氧化物增强纤维和氧化物材料的多孔基质的复合材料，以及b）用包含至少一种独居石基材料的前体的溶液渗透到基体中的孔隙，至少 一种基于脱乙酸铁基的材料或其组合; 和c）热处理复合材料以将前体转化为独居石，堇青石或其组合。

    Fiber reinforced laminated ceramic composites and method thereof
    15.
    发明授权
    Fiber reinforced laminated ceramic composites and method thereof 失效
    纤维增强层压陶瓷复合材料及其制备方法

    公开(公告)号：US5092948A

    公开(公告)日：1992-03-03

    申请号：US292756

    申请日：1989-01-03

    申请人： Frederick F. Lange ,  David B. Marshall ,  Craig A. Folsom

    发明人： Frederick F. Lange ,  David B. Marshall ,  Craig A. Folsom

    IPC分类号： B32B18/00 ,  C04B35/80

    CPC分类号： B32B18/00 ,  C04B35/63408 ,  C04B35/63452 ,  C04B35/6346 ,  C04B35/63468 ,  C04B35/645 ,  C04B35/80 ,  C04B2235/5224 ,  C04B2235/5236 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/6567 ,  C04B2235/6581 ,  C04B2237/04 ,  C04B2237/062 ,  C04B2237/064 ,  C04B2237/068 ,  C04B2237/08 ,  C04B2237/083 ,  C04B2237/10 ,  C04B2237/12 ,  C04B2237/121 ,  C04B2237/122 ,  C04B2237/123 ,  C04B2237/124 ,  C04B2237/34 ,  C04B2237/341 ,  C04B2237/343 ,  C04B2237/346 ,  C04B2237/348 ,  C04B2237/36 ,  C04B2237/363 ,  C04B2237/365 ,  C04B2237/368 ,  C04B2237/38 ,  C04B2237/704 ,  Y10S428/902

    摘要： The present invention relates to an article having improved physical properties as compared to the individual components, which article comprises:a laminated ceramic fiber composite of alternating layers of discrete thin solid sheets of ceramic A having a substantially large upper and lower surface bonded to discrete thin sheets B comprising fibers and having large upper and lower surfaces using a suitable bonding agent. A method is disclosed to produce as laminated fiber-ceramic composite, which comprises:(a) obtaining discrete preformed thin solid sheets of ceramic A having a substantially large upper and lower surface and thin edge surfaces:(b) obtaining discrete preformed thin solid sheets B comprising a fiber having large upper and lower surfaces and thin edge surface, wherein the sheet of fibers are either obtained in a matrix of a suitable bonding agent, or a suitable bonding agent is added in amounts effective to bond to the upper and lower surface of the ceramic sheet and to the upper and lower surface of the sheet of fiber;(c) alternately layering at least two ceramic sheets of step (a) with at least one fiber sheet of step (b) having a minimum A-B-A pattern or in a repeating A-B pattern optionally terminating in a ceramic sheet A; and(d) bonding the laminated sheets of step (c) producing an alternating laminar fiber reinforced ceramic composite. These laminated fiber ceramics are useful in situations involving high impact loads.

    摘要翻译： 本发明涉及一种与单个组分相比具有改善的物理性能的制品，该制品包括：具有基本上大的上表面和下表面的离散薄固体片的交替​​层的层叠陶瓷纤维复合材料， 包含纤维的片材B，并且使用合适的粘合剂具有大的上表面和下表面。 公开了一种生产作为层压纤维 - 陶瓷复合材料的方法，其包括：（a）获得具有基本上大的上表面和下表面以及薄边缘表面的不连续的预成型的陶瓷A的薄固体片;（b）获得不连续的预成型薄固体片 B包括具有大的上表面和下表面以及薄边缘表面的纤维，其中所述纤维片材以适当的粘合剂的基质获得，或者合适的粘合剂以有效粘合到上表面和下表面的量加入 的陶瓷片和纤维片的上下表面; （c）将具有至少一个具有最小A-B-A图案的步骤（b）的至少一个纤维片或任选终止于陶瓷片A的重复A-B图案交替地层叠至少两个步骤（a）的陶瓷片; 和（d）粘合制备交替层状纤维增强陶瓷复合材料的步骤（c）的层压片材。 这些层压纤维陶瓷在涉及高冲击载荷的情况下是有用的。

    S-parameter measurement system for wideband non-linear networks
    16.
    发明授权
    S-parameter measurement system for wideband non-linear networks 失效
    宽带非线性网络的S参数测量系统

    公开(公告)号：US06594604B2

    公开(公告)日：2003-07-15

    申请号：US09783912

    申请日：2001-02-14

    申请人： Donald M. Metzger ,  David B. Marshall ,  Curtis C. Hainds

    发明人： Donald M. Metzger ,  David B. Marshall ,  Curtis C. Hainds

    IPC分类号： G01C1900

    CPC分类号： G01R31/2822 ,  G01R27/28 ,  G01R35/005

    摘要： A system for determining scattering parameters (S-parameters) characterizing the behavior of a network applies a wideband stimulus signal containing multiple signal components as input to the network. The system then measures incident and reflected waveforms at all of the network's ports, digitizes and converts the measured waveforms from time domain to frequency domain data, and then computes the S-parameters values for each frequency component of interest from the frequency domain data for that frequency. The system also determines its own error coefficients (E-coefficients) for each frequency of interest from data collected during a sequence of measurements in response to either a sinusoid or a wideband signal and adjusts the computed S-parameter values accordingly.

    摘要翻译： 用于确定表征网络行为的散射参数（S参数）的系统将包含多个信号分量的宽带激励信号作为对网络的输入。 该系统然后测量所有网络端口的入射和反射波形，将测量的波形从时域数字化并转换为频域数据，然后从频域数据中计算感兴趣的每个频率分量的S参数值 频率。 系统还根据响应于正弦波或宽带信号的测量序列期间收集的数据，确定每个感兴趣频率的自己的误差系数（E系数），并相应调整计算出的S参数值。