石英纤维增强环氧树脂基复合材料的激光烧蚀行为  

Laser ablation behavior of quartz fiber reinforced epoxy resin matrix composites

作　　者：陈松 甄岳泽 马壮[1,2,3] 高丽红 王东红[4,5] CHEN Song;ZHEN Yueze;MA Zhuang;GAO Lihong;WANG Donghong(School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China;National Key Laboratory of Science and Technology on Materials under Shock and Impact,Beijing 100081,China;Tangshan Research Institute,Beijing Institute of Technology,Tangshan 063000,China;No.33 Research Institute of China Electronics Technology Group Corporation,Taiyuan 030006,China;Electromagnetic Protection Materials and Technology Key Laboratory of Shanxi Province,Taiyuan 030006,China)

机构地区：[1]北京理工大学材料学院,北京100081 [2]冲击环境材料技术国家级重点实验室,北京100081 [3]北京理工大学唐山研究院,唐山063000 [4]中国电子科技集团公司第三十三研究所,太原030006 [5]山西省电磁防护材料与技术重点实验室,太原030006

出　　处：《复合材料科学与工程》2024年第10期11-16,39,共7页Composites Science and Engineering

基　　金：国家自然科学基金(52073029);山西省科技创新团队专项基金(202204051001001)。

摘　　要：以环氧树脂为基体,以石英纤维为增强体,制备了石英纤维增强环氧树脂基复合材料,探究了不同功率密度的高能连续激光对石英纤维增强环氧树脂基复合材料的辐照效应,分析了功率密度分别为100 W/cm2、500 W/cm2和1000 W/cm2的激光对辐照样品宏微观形貌和质量烧蚀率的影响,并通过温度演变数据和树脂热解阈值模型对烧蚀行为作进一步分析。研究结果表明:激光作用于复合材料表面后,沉积的能量将造成环氧树脂基体的热解,随着激光功率密度增加,环氧树脂基体热解程度增加,复合材料表面烧蚀区域不断扩大,质量烧蚀率增加,对复合材料的破坏加剧。环氧树脂基体热解生成的气体和残炭起到了消耗能量、遮蔽激光、阻隔热量等作用,使复合材料具备了一定的抗激光烧蚀性能。Quartz fiber reinforced epoxy resin matrix composites were prepared using epoxy resin as the matrix and quartz fiber as the reinforcement.The study investigated the irradiation effect of high-energy continuous laser with different power densities on quartz fiber reinforced epoxy resin matrix composites.The study analyzed the effects of laser with power densities of 100 W/cm2,500 W/cm2,and 1000 W/cm2 on the macroscopic and microscopic morphology and the mass ablation rate of irradiated samples.Through the temperature evolution data and resin pyrolysis threshold model,the ablation behavior was further analyzed.Results indicates that after laser irradiation on the surface of composites,the deposited energy causes epoxy resin matrix pyrolysis.As the laser power density increases,the degree of epoxy resin matrix pyrolysis increases,the ablation region on the surface of the composites continues to expand,and the mass ablation rate increases,the damage to the composites intensifies.The generation of gas and residual carbon through epoxy resin matrix pyrolysis play a role in energy consumption,shielding lasers and blocking heat.The composites have a certain resistance to laser ablation.

关 键 词：激光辐照 复合材料 环氧树脂基体热解 残炭 烧蚀行为 

分 类 号：TB332[一般工业技术—材料科学与工程]