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    Fiber-reinforced ceramic composite material comprising a matrix with a nanolayered microstructure
    44.
    发明申请
    Fiber-reinforced ceramic composite material comprising a matrix with a nanolayered microstructure 审中-公开
    纤维增强陶瓷复合材料，其包含具有纳米级组织的基体

    公开(公告)号：US20050233127A1

    公开(公告)日：2005-10-20

    申请号：US11156034

    申请日：2005-06-20

    申请人： Wayne Steffier

    发明人： Wayne Steffier

    IPC分类号： B32B17/12 ,  B32B18/00 ,  B32B27/04 ,  C04B35/565 ,  C04B35/628 ,  C04B35/80 ,  D04H1/00 ,  D04H1/42 ,  D04H3/00 ,  D04H13/00

    CPC分类号： C04B35/62873 ,  B32B18/00 ,  C04B35/565 ,  C04B35/62868 ,  C04B35/62884 ,  C04B35/62894 ,  C04B35/62897 ,  C04B35/806 ,  C04B2235/428 ,  C04B2235/5244 ,  C04B2235/5256 ,  C04B2235/5268 ,  C04B2235/614 ,  C04B2235/77 ,  C04B2235/80 ,  C04B2235/96 ,  C04B2237/361 ,  C04B2237/363 ,  C04B2237/365 ,  C04B2237/368 ,  C04B2237/38 ,  C04B2237/704 ,  D04H1/42 ,  Y10T428/249924

    摘要： A fiber-reinforced ceramic matrix composite material exhibiting increased matrix cracking strength and fracture toughness is produced by sequentially depositing a plurality of 5-500 nanometer-thick layers of a primary ceramic matrix material phase periodically separated by 1-100 nanometer-thick intermediate layers of a secondary matrix material phase onto the reinforcing fibers upon their consolidation. The resultant nanolayered matrix enhances the resistance to the onset of matrix cracking, thus. increasing the useful design strength of the ceramic matrix composite material. The nanolayered microstructure of the matrix constituent also provides a unique resistance to matrix crack propagation. Through extensive inter-layer matrix fracture, debonding and slip, internal matrix microcracks are effectively diverted and/or blunted prior to their approach towards the reinforcing fiber, thus increasing the apparent toughness of the matrix constituent. This unique toughening mechanism serves to dampen energetic co-planar macrocrack propagation typically observed in conventionally manufactured ceramic matrix composites wherein matrix cracks are usually deflected at the fiber/matrix interphase region.

    摘要翻译： 表现出增加的基体裂解强度和断裂韧性的纤维增强陶瓷基复合材料是通过依次沉积多个5-500纳米厚的初级陶瓷基体材料相，其中第一陶瓷基体材料相周期性地由1-100纳米厚的中间层 次级基质材料相在其固结时在增强纤维上。 所得的纳米基体增强了基体开裂的抗性，因此。 增加陶瓷基复合材料的有用设计强度。 基体组分的纳米层状微结构也提供了对基体裂纹扩展的独特的抗性。 通过广泛的层间基体断裂，剥离和滑动，内部基体微裂纹在进入增强纤维之前有效地转向和/或钝化，从而增加基体成分的表观韧性。 这种独特的增韧机理用于抑制通常在常规制造的陶瓷基质复合材料中观察到的能量共面的宏观裂纹扩展，其中基体裂纹通常在纤维/基质相间区域被偏转。

    Boron carbide based ceramic matrix composites
    47.
    发明授权
    Boron carbide based ceramic matrix composites 有权
    碳化硼基陶瓷基复合材料

    公开(公告)号：US06855428B2

    公开(公告)日：2005-02-15

    申请号：US10452009

    申请日：2003-06-02

    申请人： Sai-Kwing Lau ,  Salvatore J. Calandra ,  Thomas D. Nixon ,  Edward R. Stover

    发明人： Sai-Kwing Lau ,  Salvatore J. Calandra ,  Thomas D. Nixon ,  Edward R. Stover

    IPC分类号： F16D65/12 ,  C04B35/628 ,  C04B35/80 ,  F16D69/02 ,  B32B9/04 ,  B32B15/00 ,  B32B31/12

    CPC分类号： C04B35/62873 ,  C04B35/6286 ,  C04B35/62894 ,  C04B35/83 ,  C04B2235/3821 ,  C04B2235/5248 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/616 ,  F16D69/023 ,  F16D2200/0047 ,  Y10T428/249928 ,  Y10T428/24993 ,  Y10T428/30

    摘要： The present invention is a composite material and process to produce same. That material comprises a fibrous structure which is initially predominantly coated with elemental carbon; that fibrous structure is then subsequently predominantly coated with at least one ceramic material, e.g., boron carbide, which is non-reactive with silicon. The composite material also comprises a silicon matrix which is continuous and predominantly surrounds the fibrous structure, which has been initially predominantly coated with elemental carbon and subsequently predominantly coated with at least one ceramic material. The matrix which has a fine grain crystalline structure of predominantly 20 microns or less in size. The at least one ceramic material is discontinuous within that matrix. The fibrous material pulls out of the elemental carbon, which initially predominantly coats that fibrous structure, when the composite is subjected to fracture.

    摘要翻译： 本发明是一种复合材料及其制造方法。 该材料包括最初主要涂覆有元素碳的纤维结构; 然后该纤维结构随后主要涂覆有至少一种不与硅反应的陶瓷材料，例如碳化硼。 复合材料还包括连续且主要包围纤维结构的硅基质，其最初主要涂覆有元素碳，随后主要涂覆有至少一种陶瓷材料。 具有主要为20微米或更小的细晶粒结晶结构的基体。 所述至少一种陶瓷材料在所述基体内是不连续的。 当复合材料经受断裂时，纤维材料从元素碳中拉出，最初主要涂覆该纤维结构。

    Assembled structures of carbon tubes and method for making the same
    49.
    发明申请
    Assembled structures of carbon tubes and method for making the same 审中-公开
    碳管的组装结构及其制造方法

    公开(公告)号：US20030224132A1

    公开(公告)日：2003-12-04

    申请号：US10600927

    申请日：2003-06-19

    发明人： Chien-Chung Han

    IPC分类号： B32B001/08

    CPC分类号： B82Y30/00 ,  B82Y40/00 ,  C01B32/05 ,  C01B32/15 ,  C04B35/6267 ,  C04B35/62873 ,  C04B2235/5212 ,  C04B2235/5248 ,  C04B2235/5252 ,  C04B2235/5284 ,  D01F9/20 ,  Y10T428/139

    摘要： Two- or three-dimension assembled structures of carbon tubes and method for making the same are disclosed. Natural or synthetic fibers are first coated with a thermally stable coating material to form a coating layer over the fibers. Such coated fibers are then assembled into a desired assembled matrix, following by the treatment with an agent to enhance the binding interactions among the coated fibers within the assembled matrix. Such bound and assembled matrix of coated fibers is then employed for making the desired two- or three-dimension assembled structure of hollow carbon tubes, by removing the fibers and carbonizing the coating layers together with the residue of the fibers (if there are any). The removing treatment and carbonization treatment can be proceeded sequentially or concurrently.

    摘要翻译： 公开了碳管的二维或三维组装结构及其制造方法。 首先用热稳定的涂层材料涂覆天然或合成纤维，以在纤维上形成涂层。 然后将这种涂覆的纤维组装成所需的组装基质，然后用​​试剂处理以增强组装的基质中涂覆的纤维之间的结合相互作用。 然后通过除去纤维并将涂层与纤维的残留物一起碳化（如果有的话），将这种结合和组装的涂覆纤维的基质用于制造所需的中空碳管的二维或三维组装结构， 。 去除处理和碳化处理可以顺序或同时进行。