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CN106396713A 改进CMC材料中的纤维间隔的均匀性 无效 - 撤回

改进CMC材料中的纤维间隔的均匀性
摘要：
提供一种预浸渍复合带(20)，包括：基质材料(22)；多个纤维(16)，其形成封闭在基质材料中的相邻纤维(16)之间的多个填料颗粒(24)。纤维(16)具有大约5微米至大约40微米的平均纤维直径，并且以大约15%至大约40%的体积分量包括在带(20)内。多个填料颗粒(24)具有对数正态体积中值颗粒大小，使得带(20)具有的对数正态体积中值颗粒大小与平均纤维直径的比为大约0.05:1至大约1:1。还提供一种用于形成陶瓷基质复合物的方法。(22)内的成单向阵列的丝束；以及散布在带(20)
摘要（英）：

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.

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