Dowel adhesive method for repair of ceramic matrix composites
    12.
    发明授权
    Dowel adhesive method for repair of ceramic matrix composites 失效
    陶瓷基复合材料的修补粘合方法

    公开(公告)号:US5928448A

    公开(公告)日:1999-07-27

    申请号:US969428

    申请日:1997-11-01

    申请人: David Eric Daws

    发明人: David Eric Daws

    IPC分类号: B23P6/00 B28B11/00 B29C73/06

    摘要: The present invention is a dowel-adhesive method for repairing ceramic matrix composites. The dowel adhesive method embodied in the present invention incorporates both adhesive and mechanical bonding of a patch to a damaged CMC surface area. The damaged area is first identified and then pre-processed. Next, a CMC patch plug is produced and adhesively and mechanically bonded to the pre-processed area. Mechanical bonding is accomplished with dowel pins and corresponding dowel pin holes in the patch plug and the panel. The dowel pins anchor the CMC patch plug to the panel. Adhesive bonding is accomplished by placing a ceramic adhesive between the patch plug and the panel. Also, the dowel pins are adhesively bonded within the dowel pin holes of the plug and the panel. The ceramic adhesive is set by a low temperature cure (if required) and a high temperature firing.

    摘要翻译: 本发明是用于修复陶瓷基复合材料的定影粘合剂方法。 本发明中实施的定影粘合剂方法既将粘合剂和粘合剂粘合到损伤的CMC表面积上。 首先识别受损区域,然后进行预处理。 接下来,制造CMC补片塞,并将其粘结和机械地结合到预处理区域。 机械接合通过定位销和补丁插头和面板中相应的定位销孔完成。 定位销将CMC补丁插头固定到面板上。 胶粘剂粘合是通过在粘合剂插头和面板之间放置陶瓷粘合剂来完成的。 此外,定位销被粘合在插头和面板的定位销孔内。 陶瓷粘合剂通过低温固化(如果需要)和高温烧制来设定。

    Carbon fiber-coating produced via precursor/solvent solution
    13.
    发明授权
    Carbon fiber-coating produced via precursor/solvent solution 失效
    通过前体/溶剂溶液生产碳纤维涂层

    公开(公告)号:US5891518A

    公开(公告)日:1999-04-06

    申请号:US792825

    申请日:1997-01-30

    IPC分类号: C03C25/44 C04B41/50 B05D3/02

    摘要: The present invention is a low cost carbon fiber-coating produced via a precursor/solvent solution and the methods and processes for fabricating such a carbon fiber-coating. The carbon fiber-coating comprises a fibrous substrate or fabric material and a carbon coating. The carbon coating prior to carbonization, is comprised of a coating solution made of a precursor dissolved directly within a solvent. Fabrication is achieved by first desizing the fibrous substrate, second immersing the desized fibrous substrate in the coating solution, third evaporating the solvent and curing the precursor via a low temperature pyrolysis in preferably an inert atmosphere, and fourth carbonizing the coating via a high temperature pyrolysis. These steps can be repeated as necessary, depending on the desired final thickness of the carbon coating. Multiple applications of the carbon coating can be used to provide limitless final coating thickness.

    摘要翻译: 本发明是通过前体/溶剂溶液制备的低成本碳纤维涂层以及制造这种碳纤维涂层的方法和工艺。 碳纤维涂层包括纤维基材或织物材料和碳涂层。 碳化之前的碳涂层由直接溶解在溶剂中的前体制成的涂布溶液组成。 通过首先将纤维基材脱浆,将脱浆的纤维基材浸渍在涂布溶液中,第三次蒸发溶剂并在优选惰性气氛中通过低温热解固化前体,并通过高温热解法将涂层第四碳化, 。 这些步骤可以根据需要重复,这取决于所需的碳涂层的最终厚度。 可以使用碳涂层的多种应用来提供无限的最终涂层厚度。