METHOD OF MANUFACTURING CERAMIC MATRIX COMPOSITE OBJECTS
    64.
    发明申请
    METHOD OF MANUFACTURING CERAMIC MATRIX COMPOSITE OBJECTS 审中-公开
    陶瓷基复合材料制造方法

    公开(公告)号:US20160289127A1

    公开(公告)日:2016-10-06

    申请号:US15033717

    申请日:2014-10-29

    申请人: MBDA UK LIMITED

    摘要: A method of manufacturing ceramic matrix composite objects is disclosed. The method comprises the steps of providing first and second substantially two dimensional arrangements of one or more fibre plies, and machining the first and second arrangements to predetermined configurations to form first and second preforms. The second preform is made to conform to a surface of the first preform such that at least some of the fibres of the second preform are orientated at least partially in a plane outside that defined by the fibres of the first preform, and fixed to the first preform to form a combined first and second preform. The combined first and second preform is rigidised. Ceramic matrix composite objects manufactured by this method are also disclosed.

    摘要翻译: 公开了一种制造陶瓷基复合材料的方法。 该方法包括以下步骤:提供一个或多个纤维层的第一和第二基本上二维布置,以及将第一和第二布置加工成预定构型以形成第一和第二预制件。 使第二预型件符合第一预成型件的表面,使得第二预成型体的至少一些纤维至少部分地定向在由第一预成型体的纤维限定的平面内,并且固定到第一预成型体 预成型件以形成组合的第一和第二预制件。 组合的第一和第二预制件被刚性化。 还公开了通过该方法制造的陶瓷基复合材料。

    Boron carbide high polymeric fiber
    65.
    发明授权
    Boron carbide high polymeric fiber 有权
    碳化硼高分子聚合物纤维

    公开(公告)号:US09187618B2

    公开(公告)日:2015-11-17

    申请号:US14394970

    申请日:2013-02-07

    摘要: A novel material boron carbide high polymeric fiber fabricated from the following parts of raw materials by weight: 50-60 parts of boron carbide, 150-193 parts of high polymeric ethylene emulsion with a concentration 40%-50%, 116 parts of hydrochloric acid with a concentration 37%, 3-5 parts of antioxidant, and 7 parts of catalyst, and fabricated in a 2500-2800° C. high-temperature high-pressure furnace and then in a high temperature-resistant spinning furnace. The novel material boron carbide high polymeric fiber produced according to the present invention exhibits performances such as extremely good resistance against high temperature and low temperature, super anti-acid and anti-base performance, excellent extensibility, wear resistance and anti-impact capability, and resistance against ultraviolet and the like. The boron carbide high polymeric fiber may be used in fields such as firearms manufacture, maritime rescue, fire protection and fire fight, anti-bullet and anti-explosion armor, biochemical nuclear industry treatment, and may be extensively applied to civil field, aerospace, military fairs and national defense. The material is recyclable and pollution-free.

    摘要翻译: 一种新型材料碳化硼高分子聚合物,由以下重量份的原料制成:50-60份碳化硼,150-193份浓度为40%-50%的高聚合乙烯乳液,116份盐酸 浓度为37%,抗氧化剂为3-5份,催化剂为7份,并在2500-2800℃高温高压炉中制造,然后在耐高温纺丝炉中制成。 根据本发明生产的新型材料碳化硼高分子聚合物具有极高的耐高温和低温性,超耐酸性和抗碱性,优异的延展性,耐磨性和抗冲击能力等性能, 耐紫外线等。 碳化硼高分子聚合纤维可用于火器制造,海上救援,消防和消防,防弹,防爆装甲,生化核工业处理等领域,可广泛应用于民用,航空航天, 军事展览和国防。 该材料可回收利用,无污染。

    Boron carbide ceramic fibers
    67.
    发明授权
    Boron carbide ceramic fibers 失效
    碳化硼陶瓷纤维

    公开(公告)号:US08536080B2

    公开(公告)日:2013-09-17

    申请号:US12486832

    申请日:2009-06-18

    摘要: A metal carbide ceramic fiber having improved mechanical properties and characteristics and improved processes and chemical routes for manufacturing metal carbide ceramic fiber. Metal carbide ceramic fibers may be formed via reaction bonding of a metal-based material (e.g. boron) with the inherent carbon of a carrier medium. One embodiment includes a method of making a metal carbide ceramic fiber using VSSP to produce high yield boron carbide fiber. Embodiments of the improved method allow high volume production of high density boron carbide fiber. The chemical routes may include a direct production of boron carbide fiber from boron carbide powder (B4C) and precursor (e.g. rayon fiber) having a carbon component to form a B4C/rayon fiber that may be processed at high temperature to form boron carbide fiber, and that may be subsequently undergo a hot isostatic pressing to improve fiber purity. Another route may include a carbothermal method comprising combining boron powder (B) with a precursor (e.g., rayon fiber) having a carbon component to form a B/rayon fiber, carbonizing and a chemical reaction of boron (B) and carbon (C) to form boron carbide fiber. Another carbothermal method may comprise combining boron oxide powder (B2O3) with a precursor (e.g., rayon fiber) having a carbon component to form a B2O3/rayon fiber, carbonizing and a chemical reaction of boron oxide (B2O3) and carbon (C) to form boron carbide (B4C) fiber.

    摘要翻译: 一种金属碳化物陶瓷纤维,其具有改进的机械性能和特性,以及用于制造金属碳化物陶瓷纤维的改进方法和化学路线。 金属碳化物陶瓷纤维可以通过金属基材料(例如硼)与载体介质的固有碳的反应结合而形成。 一个实施方案包括使用VSSP制备金属碳化物陶瓷纤维以产生高产率碳化硼纤维的方法。 改进方法的实施例允许高容量生产高密度碳化硼纤维。 化学路线可以包括从碳化硼粉末(B4C)直接生产碳化硼纤维和具有碳组分的前体(例如人造纤维),以形成可在高温下加工以形成碳化硼纤维的B4C /人造丝纤维, 然后可以进行热等静压,以提高纤维纯度。 另一种途径可以包括碳热法,其包括将硼粉末(B)与具有碳组分的前体(例如人造丝纤维)组合以形成B /人造丝纤维,碳化和硼(B)和碳(C)的化学反应, 以形成碳化硼纤维。 另一种碳热法可以包括将氧化硼粉末(B 2 O 3)与具有碳成分的前体(例如人造纤维)组合以形成B 2 O 3 /人造丝纤维,碳化和氧化硼(B 2 O 3)和碳(C)的化学反应与 形成碳化硼(B4C)纤维。

    CARBIDE NANOFIBRILS AND METHOD OF MAKING SAME
    70.
    发明申请
    CARBIDE NANOFIBRILS AND METHOD OF MAKING SAME 失效
    碳化硅纳米纤维及其制备方法

    公开(公告)号:US20080175782A1

    公开(公告)日:2008-07-24

    申请号:US11841493

    申请日:2007-08-20

    IPC分类号: C01B31/30 C01B31/34 C01B31/36

    摘要: A plurality of carbide, such as silicon carbide, tungsten carbide, etc., nanofibrils predominantly having diameters substantially less than about 100 nm and a method for making such carbide nanofibrils. The method includes the steps of: heating a plurality of carbon nanotubes or nanofibrils predominantly having diameters less than about 50 nm in a reaction chamber in the presence of a gas of the form QnAm, where Q is a metal capable of forming a carbide, A is an element or radical and n and m are integers necessary to satisfy valences, such as, for example silicon monoxide, and an inert gas in a reaction vessel to a temperature substantially less than 1700 C but sufficently high to cause substantial reaction of the metal in the gas with the carbon of said carbon nanotubes or nanofibrils to form, in situ, solid carbide nanofibrils, the temperature being sufficiently low to prevent substantial fusing together of individidual ones of said carbide nanofibrils, removing at least a portion of A-based gas from said reaction chamber as said reaction progresses, and maintaining said temperature until substantially all the carbon of said nanotubes or nanofibrils has been converted into Q-based carbide.

    摘要翻译: 多个碳化物,例如碳化硅,碳化钨等,主要具有基本上小于约100nm的直径的纳米原纤维和制造这种碳化物纳米原纤维的方法。 该方法包括以下步骤:在反应室中,在存在下列形式的气体的情况下,加热主要具有小于约50nm直径的碳纳米管或纳米原纤维 其中Q是能够形成碳化物的金属,A是元素或基团,n和m是满足价态所必需的整数,例如一氧化硅,以及反应容器中的惰性气体, 温度基本上小于1700℃,但足够高,导致气体中的金属与所述碳纳米管或纳米原纤维的碳的实质反应,原位形成整体碳化物纳米原纤维,其温度足够低以防止大量熔融在一起 所述碳化物纳米原纤维的单独的,当所述反应进行时,从所述反应室中除去至少一部分A基气体,并保持所述温度,直到所述纳米管或纳米原纤维的基本上全部为碳 转为Q型碳化物。