Laser ablation behavior of quartz fiber reinforced epoxy resin matrix composites

doi:10.19936/j.cnki.2096-8000.20241028.002

Abstract

Abstract: 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 1 000 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.

Key words: laser irradiation, composites, epoxy resin matrix pyrolysis, residual carbon, ablation behavior

CLC Number:

TB332

CHEN Song, ZHEN Yueze, MA Zhuang, GAO Lihong, WANG Donghong. Laser ablation behavior of quartz fiber reinforced epoxy resin matrix composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(10): 11-16.

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