This study primarily investigates the thermal effects of high-energy laser irradiation on carbon fiber-reinforced silicon carbide (C/SiC) composites in an airflow environment. Experiments conducted within a wind tunnel at various power densities elucidate the impact of laser ablation on the material’s surface and rear temperatures, ablation depth, and morphology. The research highlights the intriguing thermal effects of high-energy laser on C/SiC materials under airflow conditions and introduces a novel effective thermal conductivity model that incorporates reaction mechanisms and by-product considerations. This model significantly enhances the accuracy in predicting temperature variations and ablation rates, offering critical insights into the thermal behavior of C/SiC composites under extreme conditions.

中文翻译：

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研究气流条件下 C/SiC 复合材料的激光诱导热响应


本研究主要研究气流环境中高能激光照射对碳纤维增强碳化硅（C/SiC）复合材料的热效应。在风洞内以不同功率密度进行的实验阐明了激光烧蚀对材料表面和背面温度、烧蚀深度和形态的影响。该研究强调了气流条件下高能激光对 C/SiC 材料的有趣热效应，并引入了一种新颖的有效导热模型，该模型结合了反应机制和副产品的考虑。该模型显着提高了预测温度变化和烧蚀率的准确性，为极端条件下 C/SiC 复合材料的热行为提供了重要的见解。