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    ENVIRONMENTAL BARRIER FIBER COATING
    21.
    发明申请
    ENVIRONMENTAL BARRIER FIBER COATING 审中-公开
    环保型纤维涂料

    公开(公告)号：WO2014159556A3

    公开(公告)日：2015-02-26

    申请号：PCT/US2014024169

    申请日：2014-03-12

    Applicant: ROLLS ROYCE CORP

    Inventor： LAZUR ANDREW J

    IPC: C04B35/563 ,  C04B35/565 ,  C04B35/573 ,  C04B35/628 ,  C04B35/80

    CPC classification number: C04B41/85 ,  C04B35/52 ,  C04B35/563 ,  C04B35/565 ,  C04B35/573 ,  C04B35/6286 ,  C04B35/62863 ,  C04B35/62868 ,  C04B35/62871 ,  C04B35/62884 ,  C04B35/62894 ,  C04B35/62897 ,  C04B35/806 ,  C04B41/88 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/428 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/6025 ,  C04B2235/614 ,  C04B2235/616 ,  C09D1/00 ,  C09D5/00 ,  C23C16/325 ,  C23C16/342

    Abstract: A fiber having an environmental barrier coating is provided that includes, in one illustrative form, a Hi Nicalon preform assembled in a tooling for chemical vapor infiltration and cleaned to remove sizing char from fibers of the Hi Nicalon preform; a ytterbium doped silicon carbide coat located over the Hi Nicalon preform; a boron nitride interface coat applied over the ytterbium doped silicon carbide coat; and a silicon carbide coat applied over the boron nitride interface coat. In another embodiment the fiber has an environmental barrier coating, comprising: a Hi Nicalon S fiber; wherein the Hi Nicalon S fiber is coated in tow form with yttrium doped silicon carbide; and a silicon doped boron nitride coat applied over the yttrium doped silicon carbide. In a third embodiment the fiber has an environmental barrier coating, comprising: a T-300 carbon fiber preform assembled in tooling for chemical vapor infiltration; alternating layers of silicon carbide and boron carbide are applied over the preform; and a silicon doped boron nitride interface coat applied over the silicon carbide coat.

    Abstract translation: 提供了具有环境屏障涂层的纤维，其包括以一种说明性形式组装在用于化学气相渗透的工具中的Hi Nicalon预制件，并被清洁以从Hi Nicalon预成型件的纤维中除去上浆炭; 位于Hi Nicalon预制件上方的掺镱碳化硅涂层; 施加在掺杂镱的碳化硅外壳上的氮化硼界面涂层; 以及涂覆在氮化硼界面涂层上的碳化硅涂层。 在另一个实施方案中，纤维具有环境阻挡涂层，其包括：Hi Nicalon S纤维; 其中Hi Nicalon S纤维以掺钇掺杂碳化硅的丝束形式涂覆; 并且在掺杂钇的碳化硅上施加掺硅氮化硼涂层。 在第三实施例中，纤维具有环境阻挡涂层，其包括：T-300碳纤维预制件，其组装在用于化学气相渗透的工具中; 将碳化硅和碳化硼的交替层施加在预制件上; 以及涂覆在碳化硅涂层上的硅掺杂的氮化硼界面涂层。

    MULTI-FUNCTIONAL BN-BN COMPOSITE
    28.
    发明申请
    MULTI-FUNCTIONAL BN-BN COMPOSITE 审中-公开
    多功能BN-BN复合材料

    公开(公告)号：WO2014028043A2

    公开(公告)日：2014-02-20

    申请号：PCT/US2013000099

    申请日：2013-03-29

    Applicant: NAT INST AEROSPACE ASSOCIATES ,  NASA

    Inventor： KANG JIN HO ,  BRYANT ROBERT G ,  PARK CHEOL ,  SAUTI GODFREY ,  GIBBONS LUKE ,  LOWTHER SHARON ,  THIBEAULT SHEILA A ,  FAY CATHARINE C

    IPC: C04B35/5835

    CPC classification number: C04B35/583 ,  B82Y30/00 ,  C04B35/6229 ,  C04B35/806 ,  C04B2235/3821 ,  C04B2235/3826 ,  C04B2235/386 ,  C04B2235/422 ,  C04B2235/428 ,  C04B2235/46 ,  C04B2235/465 ,  C04B2235/486 ,  C04B2235/5256 ,  C04B2235/5284 ,  C04B2235/94 ,  H01L41/187 ,  H01L41/43

    Abstract: Multifunctional Boron Nitride nanotube-Boron Nitride (BN-BN) nanocomposites for energy transducers, thermal conductors, anti-penetrator/wear resistance coatings, and radiation hardened materials for harsh environments. An all boron-nitride structured BN-BN composite is synthesized. A boron nitride containing precursor is synthesized, then mixed with boron nitride nanotubes (BNNTs) to produce a composite solution which is used to make green bodies of different forms including, for example, fibers, mats, films, and plates. The green bodies are pyrolized to facilitate transformation into BN-BN composite ceramics. The pyrolysis temperature, pressure, atmosphere and time are controlled to produce a desired BN crystalline structure. The wholly BN structured materials exhibit excellent thermal stability, high thermal conductivity, piezoelectricity as well as enhanced toughness, hardness, and radiation shielding properties. By substituting with other elements into the original structure of the nanotubes and/or matrix, new nanocomposites (i.e., BCN, BCSiN ceramics) which possess excellent hardness, tailored photonic bandgap and photoluminescence, result.

    Abstract translation: 多功能氮化硼纳米管 - 氮化硼（BN-BN）纳米复合材料，用于能量传感器，导热体，防穿透/耐磨涂层，以及用于恶劣环境的辐射硬化材料。 合成了所有的氮化硼结构BN-BN复合材料。 合成含氮化硼的前体，然后与氮化硼纳米管（BNNT）混合，制成复合溶液，该复合溶液用于制造不同形式的生坯，包括例如纤维，垫，膜和板。 将生坯体进行热处理，以便转化成BN-BN复合陶瓷。 控制热解温度，压力，气氛和时间以产生所需的BN晶体结构。 完整的BN结构材料表现出优异的热稳定性，高导热性，压电性以及增强的韧性，硬度和辐射屏蔽性能。 通过用其他元素代替纳米管和/或基体的原始结构，得到具有优异硬度，定制的光子带隙和光致发光的新纳米复合材料（即BCN，BCSiN陶瓷）。

    CMC CORE COWL AND METHOD OF FABRICATING
    29.
    发明申请
    CMC CORE COWL AND METHOD OF FABRICATING 审中-公开
    CMC CORE COWL及其制作方法

    公开(公告)号：WO2014022344A1

    公开(公告)日：2014-02-06

    申请号：PCT/US2013/052630

    申请日：2013-07-30

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： RENGGLI, Bernard, James ,  KEY, Caroline, Elizabeth ,  LAUDE, Anthony

    IPC: F02K1/78 ,  B64D29/00 ,  C04B35/645 ,  F02K3/06

    CPC classification number: F01D25/005 ,  C04B35/18 ,  C04B35/565 ,  C04B35/803 ,  C04B35/806 ,  C04B2235/5224 ,  C04B2235/5244 ,  C04B2235/5268 ,  C04B2235/94 ,  F02K1/78 ,  F02K3/06 ,  F05D2300/6033 ,  Y02T50/672

    Abstract: A CMC core cowl (120) for an aircraft gas turbine engine (10). The ceramic core cowl comprises an interlaced fiber structure having fibers oriented in substantially transverse directions, and a ceramic matrix surrounding the ceramic fiber structure. The core cowl further comprises several panels (150, 152, 154, 156). The ceramic fiber and matrix are formed into a substantially cylindrical shape extending from a fore end at the fan outlet guide vanes to an aft end at the low pressure turbine outlet guide vanes. The CMC core cowl (120) includes a means for mechanical attachment (170) circumferentially oriented around the fore end and the aft end with mating parts. The CMC core cowl further includes additional plies oriented in a third preselected direction, thereby providing additional strength for mechanical attachment.

    Abstract translation: 一种用于飞机燃气涡轮发动机（10）的CMC核心罩（120）。 陶瓷芯罩包括具有基本横向取向的纤维的交织纤维结构和围绕陶瓷纤维结构的陶瓷基体。 芯套还包括几个面板（150,152,154,156）。 陶瓷纤维和基体形成为从风扇出口导叶的前端延伸到低压涡轮机出口导向叶片的后端的大致圆柱形。 CMC核心罩（120）包括用于机械附接（170）的装置，其围绕前端和后端具有配合部分周向定向。 CMC核心外罩还包括以第三预选方向定向的附加层，从而为机械附接提供额外的强度。

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