Carbon fabrics sequentially resin coated with (1) a metal-containing
composition and (2) a boron-containing composition are laminated and
carbonized
    1.
    发明授权
    Carbon fabrics sequentially resin coated with (1) a metal-containing composition and (2) a boron-containing composition are laminated and carbonized 失效
    将(1)含金属组合物和(2)含硼组合物层合并碳化的碳纤维织物依次涂覆

    公开(公告)号:US4321298A

    公开(公告)日:1982-03-23

    申请号:US124931

    申请日:1980-02-26

    摘要: A fibrous carbon material is first coated with a thermosetting material which remains flexible after being subjected to curing temperatures. The thermosetting material contains a refractory metal capable of reacting with boron to form a metal boride. This thermosetting resin is then cured. The fibrous carbon material is then impregnated with a second thermosetting resin containing a boron compound and, optionally, a refractory metal capable of reacting with boron to form a metal boride. The second thermosetting resin is at least partially cured and a plurality of layers of the fibrous material is then assembled to form a laminate. The laminate is heated to a temperature sufficient to carbonize the thermosetting resin. The resultant carbon-carbon composite has better oxidation resistance, improved high temperature stability, higher density and improved interlaminar tensile strength than does a composite prepared without the presence of the refractory metal in the thermosetting resin.

    摘要翻译: 纤维状碳材料首先用热固性材料涂覆,其在经受固化温度后保持柔性。 热固性材料含有能够与硼反应形成金属硼化物的难熔金属。 然后将该热固性树脂固化。 然后用含有硼化合物和任选的能够与硼反应形成金属硼化物的难熔金属的第二热固性树脂浸渍纤维状碳材料。 第二热固性树脂至少部分固化,然后组装多层纤维材料以形成层压体。 将层压体加热到足以使热固性树脂碳化的温度。 与在热固性树脂中不存在难熔金属时制备的复合材料相比,所得碳 - 碳复合材料具有更好的抗氧化性,改善的高温稳定性,更高的密度和更好的层间拉伸强度。

    Wet friction materials, methods of making them, and apparatus containing
the same
    2.
    发明授权
    Wet friction materials, methods of making them, and apparatus containing the same 失效
    湿摩擦材料,制造方法和含有它们的装置

    公开(公告)号:US5895716A

    公开(公告)日:1999-04-20

    申请号:US588958

    申请日:1996-01-19

    IPC分类号: C04B35/83 F16D69/02 B32B9/00

    摘要: This invention relates to carbon--carbon (C--C) composite comprising carbon fibers or carbon fabric, carbon char on the carbon fiber or fabric and pyrolytic carbon on the carbon char, wherein the density of the carbon composite is at least 1.3 g/cc. The invention also relates to wet friction elements and power transmission devises containing the same. The invention also relates to methods of preparing the carbon--carbon (C--C) composites. These C--C composites and wet friction elements and power transmission devises made therefrom have improved friction properties desired by wet brakes and clutches. These C--C composites provide improvements in cost, and when run against metals, such as steel or iron, improvements in wear and frictional behavior compared to known C--C composites for wet friction applications. In one aspect, the carbon--carbon does not require bonding to a metal backing or core material.

    摘要翻译: 本发明涉及包含碳纤维或碳纤维的碳 - 碳(C-C)复合物,碳纤维或织物上的碳焦和碳焦炭上的热解碳,其中碳复合材料的密度至少为1.3g / cc。 本发明还涉及含有其的湿摩擦元件和动力传递装置。 本发明还涉及制备碳 - 碳(C-C)复合材料的方法。 这些C-C复合材料和湿摩擦元件以及由此制成的动力传动装置具有改善湿式制动器和离合器所需的摩擦性能。 这些C-C复合材料提供了成本的改进,并且与用于湿摩擦应用的已知C-C复合材料相比,对金属(例如钢或铁)进行磨损和摩擦行为的改善。 一方面,碳 - 碳不需要与金属背衬或芯材料接合。