@article{GAO2024, 
author = {Zhiting GAO and Zhuang MA and Yanbo LIU},
title = {Effect of CVD-SiC array structure on ablation resistance of ZrB2/SiC coatings},
year = {2024},
journal = {Acta Aeronautica et Astronautica Sinica},
volume = {45},
number = {3},
pages = {428842},
keywords = {array structure, ablation, plasma spraying, C/C composite materials, CVD-SiC, laser etching},
url = {https://www.sciopen.com/article/10.7527/S1000-6893.2023.28842},
doi = {10.7527/S1000-6893.2023.28842},
abstract = {Influence of array structure on the performance of ZrB2/SiC coatings was studied by using femtosecond laser to prepare arrays with different sizes on the surface of the Chemical Vapor Deposition (CVD) -SiC interlayer. Results showed that with the increase of laser etching frequency, the depth of the array structure increased from 30 μm to 150 μm. After 600 s of oxyacetylene combustion, the surface temperature of the ZrB2/SiC coating decreased gradually with the increase of CVD-SiC microstructure depth, and the lowest surface temperature reached 1 700 ℃, which decreased by nearly 200 ℃. The color of the combustion center area transitioned from white to light gray. For the samples with an etching frequency of 5 times, after a single cycle of 600 s, the mass combustion rate and linear combustion rate were -7.4 × 10-5 g/s and -13.3 μm/s respectively. The array structure increased the contact area between the ZrB2/SiC coating and the CVD-SiC interlayer, thereby increasing the thermal conductivity, reducing heat accumulation, and ultimately enhancing the anti-combustion performance of the ZrB2/SiC coating.}
}