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本文用自制装置研究了多向细编Ｃ／Ｃ复合材料纤维束性能，分析了工艺过程的影响。同时用界面微脱粘实验技术研究了Ｃ／Ｃ复合材料界面性能，给出了相应的理论模型和界面应力分布，提出了由界面脱粘力，纤维、基体和复合材料性能表征界面剪切强度的方法，为Ｃ／Ｃ复合材料优化设计提供了定量参数。结果表明：织物结构、织物编织工艺以及织物／基体复合对纤维的强度影响很大，降为原始纤维的２０％左右，对模量影响小。不同界面层次，纤维／基体的界面结合情况和界面剪切强度不同，Ｚ向纤维束中纤维／基体结合好，具有最高的结合强度，ＳＥＭ观察证实有大量基体碳在纤维上枝联。
In this paper, the self-made device to study the multi-directional fine C / C composite fiber bundles performance, analysis of the impact of the process. At the same time, the interface properties of C / C composites were studied by micro-debonding interface technique. Corresponding theoretical models and interfacial stress distributions were given. The interfacial shear bond strength, fiber, matrix and composite properties The method provides the quantitative parameters for the optimal design of C / C composites. The results show that fabric structure, fabric weaving process and fabric / matrix composite have a great influence on the fiber strength, reduced to about 20% of the original fiber, and have little effect on the modulus. Different interface layers, fiber / matrix interface bonding and interfacial shear strength were different. The fiber / matrix in the Z-direction fiber bundles were bonded well with the highest bonding strength. SEM observation showed that a large amount of matrix carbon was dendritic in the fibers.