IMPROVED UNIFORMITY OF FIBER SPACING IN CMC MATERIALS
    6.
    发明公开
    IMPROVED UNIFORMITY OF FIBER SPACING IN CMC MATERIALS 审中-公开
    CMC-MATERIALIEN中的VERBESSERTEGLEICHMÄSSIGKEITDES FASERABSTANDS

    公开(公告)号:EP3124458A1

    公开(公告)日:2017-02-01

    申请号:EP16180694.8

    申请日:2016-07-22

    IPC分类号: C04B35/80 C04B35/83

    摘要: A pre-impregnated composite tape (20) is provided that includes: a matrix material (22); a plurality of fibers (16) forming unidirectional arrays (14) of tows encased within the matrix material (22); and a plurality of filler particles (24) dispersed between adjacent fibers (16) in the tape (20). The fibers (16) have a mean fiber diameter of about 5 microns and about 40 microns, and are included within the tape (20) at a volume fraction of about 15% and about 40%. The plurality of filler particles (24) have a log-normal volumetric median particle size, such that the tape (20) 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(20),其包括:基质材料(22); 多个纤维(16)形成包围在所述基体材料(22)内的丝束的单向阵列(14)。 以及分散在带(20)中的相邻纤维(16)之间的多个填料颗粒(24)。 纤维(16)具有约5微米和约40微米的平均纤维直径,并且以约15%和约40%的体积分数包含在带(20)内。 多个填料颗粒(24)具有对数正态体积中值粒径,使得带(20)具有对数正态体积中值粒径与平均纤维直径的比为约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。