Materials Reports 2022, Vol. 36 Issue (Z1): 21120073-5 |
INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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Ceramics Content of SiC-ZrC on the Properties of C/C-SiC-ZrC Composites |
ZHANG Xizhi1, CUI Hong1, HU Yang1, DENG Hongbing1 , WANG Hao2
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1 Research Institute of Xi'an Aerospace Composites Materials, Xi'an 710025, China 2 Xi'an Aerospace Chemical Propulsion Co.,Ltd., Xi'an 710025, China |
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Abstract C/C-SiC-ZrC composites with different SiC-ZrC contents were prepared through the method of polymer infiltration and pyrolysis (PIP) to systematically test the effects of SiC-ZrC contents on microstructure, mechanical property and anti-ablative property of C/C-SiC-ZrC composites. Results showed that the content of ZrC significantly affected the mechanical property and anti-ablative property of the composites. Specifically, the composites have the best performance in terms of mechanical property when the ZrC content is 4.53%, and the bending, compressive and shear strengths are 358 MPa, 277 MPa, and 115 MPa receptively; the composites have good performance in terms of anti-ablative property when the ZrC content is 13.03%. The linear ablation rate and mass ablation rate of composites are 0.003 mm/s and 0.001 6 g/s after ablation by oxygena-cetylene flame at a heat flux of 3 200 kW/m2 for 300 s. It is found that a weak bond between the PyC layer and the ceramic layer forms as the ZrC content increases; the PyC layer and the ceramic layer will move first when a load is assumed, making it difficult for the toughening effect of the fiber to be produced, leading to a sharp performance decrease in the mechanical properties of the composite. When the ZrC content is 13.03%, the ZrO2 generated by oxidation that adhere firmly to the surface of the material, forms a binary eutectic mixture SiO2-ZrO2 with SiO2 of certain fluidity to compensate for the pores and gaps due to gas volatilization in the ablation process. The binary eutectic mixture SiO2-ZrO2 prevents the oxygen-containing components from further corroding the material and effectively improves the anti-ablative property and anti-oxidation resistance of the material.
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Published: 05 June 2022
Online: 2022-06-08
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Fund:National Defense Science and Technology Innovation Special Zone Project (19H86303ZD102006). |
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1 Ran L P, Rao F, Peng K, et al. Transactions of Nonferrous Metals Society of China, 2019, 29 (10), 2141. 2 Zhu Y, Hu Y, Cui H, et al. Ceramics International, 2021, 47(5), 6554. 3 姚西媛, 李克智, 任俊杰, 等. 无机材料学报, 2020, 35(5), 589. 4 He Q, Li H, Wang C, et al. Ceramics International, 2019, 45(3), 3767. 5 Jia Y, Yao X, Sun J, et al. Materials & Design, 2017, 129, 15. 6 Ma C, Guo L, Li H, et al. Materials & Design, 2016, 90, 373. 7 Zhao Z, Li K, Liu Q, et al. Vacuum, 2018, 156, 123. 8 Huang D, Zhang M, Huang Q, et al. Corrosion Science, 2015, 98, 551. 9 Zhao Z, Li K, Li W, et al. Ceramics International, 2018, 44(7), 7481. 10 王玲玲, 闫联生, 郭春园, 等. 复合材料学报, 2020, 37(9), 2250. 11 Zhou H, Ni D, He P, et al. Ceramics International, 2018, 44 (5), 4777. 12 Li Z, Li H, Zhang S, et al. Corrosion Science, 2012, 58, 12. 13 Zhao Z, Li K, Kou G, et al. Ceramics International, 2018, 44(18), 23191. 14 Yu H J, Zhou X G, Zhang W, et al. Composites Science and Technology, 2011, 71(5), 699. 15 Dai J, Sha J, Wang Y, et al. Rare Metal Materials and Engineering, 2016, 45(3), 742. 16 Gao M, Chen L, Hua Y, et al. Advanced Materials, 2011, 239, 1076. 17 Li J, Yang X, Su Z A, et al. Transactions of Nonferrous Metals Society of China, 2016, 26(10), 2653. |
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