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    Highly heat-resistant inorganic fiber bonded ceramic component and process for the production thereof
    6.
    发明公开
    Highly heat-resistant inorganic fiber bonded ceramic component and process for the production thereof 审中-公开
    Sehrhitzebeständigesanorganisches fasergebundenes Keramikteil und Verfahren zu dessen Herstellung

    公开(公告)号：EP1388527A2

    公开(公告)日：2004-02-11

    申请号：EP03254977.6

    申请日：2003-08-11

    申请人： Ube Industries, Ltd.

    发明人： Kajii, Shinji ,  Matsunaga, Kenji ,  Hogami, Toshihiko ,  Sato, Mitsuhiko

    IPC分类号： C04B35/80 ,  C04B35/622 ,  C04B35/628 ,  B32B18/00

    CPC分类号： C04B35/645 ,  B32B18/00 ,  B82Y30/00 ,  C04B35/52 ,  C04B35/62245 ,  C04B35/62281 ,  C04B35/6286 ,  C04B35/62873 ,  C04B35/62892 ,  C04B35/62897 ,  C04B35/806 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3418 ,  C04B2235/3834 ,  C04B2235/3839 ,  C04B2235/3843 ,  C04B2235/422 ,  C04B2235/524 ,  C04B2235/5244 ,  C04B2235/5264 ,  C04B2235/5454 ,  C04B2235/6028 ,  C04B2235/94 ,  Y10T428/249928 ,  Y10T428/249929 ,  Y10T428/24993

    摘要： A process for the production of an inorganic fiber-bonded ceramic (A) wherein the ceramic (A) comprises:

    (i) inorganic fibers comprising (a) and/or (b), wherein,

    (a) is an amorphous substance comprising Si, M, C and O, wherein M is Ti or Zr, and
    (b) is an assembly of (1) crystalline particles of β-SiC, MC and C, wherein M is Ti or Zr, and (2) amorphous substances of SiO 2 and MO 2 , wherein M is Ti or Zr;

    (ii) an inorganic substance comprising (c) and/or (d) and optionally (e) dispersed therein, which substance fills interstices between the above inorganic fibers, wherein

    (c) is an amorphous substance comprising Si and O and optionally comprising M, wherein M is Ti or Zr,
    (d) is a crystalline substance comprising crystalline SiO 2 and MO 2 , and wherein M is Ti or Zr, and
    (e) is a crystalline fine particle inorganic substance comprising MC, wherein M is Ti or Zr,having a particle diameter of 100 nm or less; and

    (iii) boundary layers with a thickness of 1 to 100nm which comprise carbon as a main component and optionally comprise crystalline particles of MC, wherein M is Ti or Zr, with a particle diameter of 100 nm or less dispersed therein, the boundary layers being formed on the surfaces of said inorganic fibers,
       from a laminate material (B), wherein said laminate (B) comprises inorganic fibers which have:

    (i) an internal layer, containing (a) and/or (b), where (a) and (b) are as defined above,
    (ii) a surface layer containing (c) and/or (d), wherein (c) and (d) are as defined above,
          and wherein the surface layer has a thickness T (unit: µm) satisfying T = aD (in which a is from 0.023 to 0.053 and D is a diameter (unit: µm) of the inorganic fiber),
       which process comprises:

    A) disposing the laminate material (B) around a mould to produce a preliminary shaped material, wherein said mould is a carbon core;
    B) setting the preliminary shaped material in a carbon die;
    C) covering the preliminary shaped material with a carbon powder; and
    D) loading a pseudo-isotropic pressure on the preliminary shaped material by hot-pressing in an inert gas atmosphere at a temperature in the range of from 1,500 to 2,000 °C under a pressure of 10 to 100 MPa.

    摘要翻译： 一种制备无机纤维结合陶瓷（A）的方法，其中陶瓷（A）包括：（i）包含（a）和/或（b）的无机纤维，其中（a）是包含Si ，M，C和O，其中M是Ti或Zr，和（b）是（1）2-SiC，MC和C的结晶颗粒的组合物，其中M是Ti或Zr，和（2）无定形物质 SiO 2和MO 2，其中M是Ti或Zr; （ii）包含（c）和/或（d）和任选地（e）分散在其中的无机物质，所述物质填充上述无机纤维之间的间隙，其中（c）是包含Si和O的非晶态物质， 其中，M是Ti或Zr，（d）是包含结晶SiO 2和MO 2的结晶物质，其中M是Ti或Zr，（e）是包含MC的结晶微粒无机物质，其中M是Ti或 Zr，粒径为100nm以下; 和（iii）厚度为1〜100nm的边界层，其包含碳作为主要成分，并且任选地包含MC的结晶颗粒，其中M是分散在其中的粒径为100nm或更小的Ti或Zr，边界层 在层压材料（B）的表面上形成所述无机纤维的表面，其中所述层压体（B）包含无机纤维，所述无机纤维具有：（i）含有（a）和/或（ b），其中（a）和（b）如上所定义，（ii）含有（c）和/或（d）的表面层，其中（c）和（d）如上所定义，ƒ€ 表面层的厚度T（单位：μm）满足T = aD（其中a为0.023〜0.053，D为无机纤维的直径（单位：μm））， 该方法包括：A）将层压材料（B）设置在模具周围以产生预成型材料，其中所述模具为碳芯; B）将预成型材料设置在碳模具中; C）用碳粉覆盖预成型材料; 和D）在惰性气体气氛中，在1500-2000℃的温度下，在10-100MPa的压力下热压，在预成型材料上加载假各向同性压力。

    FIBROUS COMPOSITE MATERIAL AND PROCESS FOR PRODUCING THE SAME
    9.
    发明公开
    FIBROUS COMPOSITE MATERIAL AND PROCESS FOR PRODUCING THE SAME 无效
    FERERVERBUNDWERKSTOFF UND VERFAHREN ZUR HERSTELLUNG

    公开(公告)号：EP1028099A1

    公开(公告)日：2000-08-16

    申请号：EP98947765.8

    申请日：1998-10-07

    申请人： NGK INSULATORS, LTD. ,  ACROSS CO., LTD.

    发明人： HANZAWA, Shigeru ,  NAKAGAWA, Takao

    IPC分类号： C04B41/88

    CPC分类号： F16D69/023 ,  C04B35/573 ,  C04B35/806 ,  C04B41/009 ,  C04B41/5096 ,  F16D2200/0047 ,  Y10T428/249927 ,  Y10T428/249928 ,  Y10T428/249929 ,  Y10T428/24993 ,  C04B41/4523 ,  C04B41/4556 ,  C04B41/5059 ,  C04B14/386 ,  C04B30/02

    摘要： A fiber-composite material (7) is comprised of a yarn aggregate (6) in which yarn (2A, 2B) including at least a bundle (3) of carbon fiber and a carbon component other than carbon fiber is three-dimensionally combined and integrally formed without separation from each other; and a matrix made of Si-SiC-based materials (4A, 4B, 5A, 5B) filled between the yarn (2A, 2B) adjacent to each other within the yarn aggregate (6). A method of preparing fiber-composite material is comprised of the steps of: producing bundles (3) of carbon fiber by impregnating a component of powdery carbon into the bundles (3) of carbon fiber, which eventually forms a matrix shape; forming a plastic coat around the bundles (3) of carbon fiber to obtain an intermediate material; molding the intermediate material to obtain a molded product by making the intermediate material into a yarn-shape and laminating a predetermined amount of the material, or burning the molded product to obtain a burned product; holding the molded product or the burned product and Si, at 1100 to 1400°C in an atmosphere of inert gas; and heating the molded product or the burned product and Si to a temperature from 1450 to 2500°C, to thereby impregnate Si-SiC-based material into the inside of pores of the molded product or the burned product. A light and strong composite material is provided, which has excellent shock resistance, corrosion resistance in a strong oxidation and corrosion environments, creep resistance, spalling resistance, wear resistance, a low friction coefficient and a self-restorative ability by which a defect is healed.

    摘要翻译： 纤维复合材料（7）由纱线聚集体（6）组成，其中至少包含碳纤维束（3）和碳纤维以外的碳成分的纱线（2A，2B）三维组合， 整体形成而不分离; 以及填充在纱线组合体（6）内彼此相邻的纱线（2A，2B）之间的由Si-SiC系材料（4A，4B，5A，5B）构成的基体。 制备纤维复合材料的方法包括以下步骤：通过将碳粉组分浸渍到最终形成基体形状的碳纤维束（3）中来生产碳纤维束（3）; 在碳纤维束（3）周围形成塑料涂层以获得中间材料; 通过使中间材料成为纱线形状并层叠预定量的材料，或者燃烧成型品以得到烧成品，成型中间体材料，得到成型体。 在惰性气体气氛下，在1100〜1400℃下保持成型品或烧成品和Si; 将成型体或烧成品和Si加热到1450〜2500℃的温度，从而将Si-SiC系材料浸渍在成形品或烧成品的孔内。 提供了一种轻而强的复合材料，其具有优异的抗冲击性，在强氧化和腐蚀环境中的耐腐蚀性，抗蠕变性，抗剥落性，耐磨性，低摩擦系数和缺陷愈合的自恢复能力 。