UNIFORMITY OF FIBER SPACING IN CMC MATERIALS
    6.
    发明申请
    UNIFORMITY OF FIBER SPACING IN CMC MATERIALS 审中-公开
    CMC材料中纤维间距的均匀性

    公开(公告)号:US20170029340A1

    公开(公告)日:2017-02-02

    申请号:US14813239

    申请日:2015-07-30

    IPC分类号: C04B35/76 B29C70/02

    摘要: A pre-impregnated composite tape is provided that includes: a matrix material; a plurality of fibers forming unidirectional arrays of tows encased within the matrix material; and a plurality of filler particles dispersed between adjacent fibers in the tape. The fibers have a mean fiber diameter of about 5 microns and about 40 microns, and are included within the tape at a volume fraction of about 15% and about 40%. The plurality of filler particles have a log-normal volumetric median particle size, such that the tape has a ratio of the log-normal volumetric median particle size to the mean fiber diameter that is about 0.05:1 to about 1:1. A method is also provided for forming a ceramic matrix composite.

    摘要翻译: 提供预浸渍复合胶带,其包括:基质材料; 多个纤维,其形成包含在基质材料内的丝束的单向阵列; 以及分散在带中的相邻纤维之间的多个填料颗粒。 纤维的平均纤维直径为约5微米至约40微米,并且以约15%至约40%的体积分数包含在带内。 多个填料颗粒具有对数正态体积中值粒径,使得带具有对数正态体积中值粒径与平均纤维直径的比例为约0.05:1至约1:1。 还提供了一种用于形成陶瓷基质复合材料的方法。

    SYSTEMS AND METHODS FOR CERAMIC MATRIX COMPOSITES
    9.
    发明申请
    SYSTEMS AND METHODS FOR CERAMIC MATRIX COMPOSITES 有权
    陶瓷基复合材料的系统与方法

    公开(公告)号:US20160068446A1

    公开(公告)日:2016-03-10

    申请号:US14838856

    申请日:2015-08-28

    摘要: Methods for fabricating a ceramic matrix composite are disclosed. A fiber preform may be placed in a mold. An aqueous solution may be added to the fiber preform. The aqueous solution may include water, carbon nanotubes, and a binder. The preform may be frozen. Freezing the preform may cause the water to expand and separate fibers in the fiber preform. The carbon nanotubes may bond to the fibers. The preform may be freeze dried to remove the water. The preform may then be processed according to standard CMC process.

    摘要翻译: 公开了制造陶瓷基质复合材料的方法。 纤维预成型件可以放置在模具中。 可以将水溶液加入到纤维预制件中。 水溶液可以包括水,碳纳米管和粘合剂。 预成型件可以被冷冻。 冷冻预成型件可能导致水膨胀并分离纤维预制件中的纤维。 碳纳米管可以结合到纤维上。 预制件可以被冷冻干燥以除去水。 然后可以根据标准CMC方法处理预成型件。