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首页> 外文期刊>Materials Science Research International >Effects of Interface Control and Heat-Treatment Temperature on Interlaminar Shear Strength and Mode II Interlaminar Fracture Toughness of Woven C/C Composites
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Effects of Interface Control and Heat-Treatment Temperature on Interlaminar Shear Strength and Mode II Interlaminar Fracture Toughness of Woven C/C Composites

机译：界面控制和热处理温度对编织C / C复合材料层间剪切强度和II型层间断裂韧性的影响

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摘要

The effects of interface control and matrix microstructure on the interlaminar shear strength and mode II interlaminar fracture toughness of 5 H satin woven C/C composites were investigated by coating bismaleimide-triazine co-polymer (BT-resin) on the surface of carbon fiber and changing the heat-treatment temperature. Three point short beam flexure tests were carried out for the shear strength. End notched flexure specimens were used for the mode II interlaminar fracture toughness tests. Both the interlaminar strength and toughness decreased by coating BT-resin and increasing HTT from 1600 deg C to 2500 deg C. however the influence of the BT-resin coating was much larger for the mode II interlaminar fracture toughness than that for the interlaminar shear strength. This difference of the effect of interface control was discussed on the basis of microscopic observation.
机译：通过在碳纤维和碳纤维表面涂覆双马来酰亚胺-三嗪共聚物（BT-树脂），研究界面控制和基体微观结构对5 H绸缎机织C / C复合材料的层间剪切强度和II型层间断裂韧性的影响。改变热处理温度。对剪切强度进行了三点短梁挠曲测试。端部切口挠曲样品用于II型层间断裂韧性测试。通过涂覆BT-树脂并增加HTT从1600℃增加到2500℃，层间强度和韧性均降低。但是，对于II型层间断裂韧性，BT-树脂涂层的影响要比对层间剪切强度的影响大得多。 。在显微镜观察的基础上讨论了界面控制效果的差异。

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