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反应熔体浸渗法制备的C/C-SiC-(ZrHf)C复合材料的微观结构与烧蚀行为

Microstructure and Ablation Behavior of C/C-SiC-(ZrHf)C Composites Prepared by Reactive Melt Infiltration Method.

作者信息

Liu Zaidong, Wang Yalei, Xiong Xiang, Ye Zhiyong, Long Quanyuan, Wang Jinming, Li Tongqi, Liu Congcong

机构信息

State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China.

Science and Technology of Advanced Functional Composites Laboratory, Aerospace Research Institute of Materials and Processing Technology, Beijing 100076, China.

出版信息

Materials (Basel). 2023 Mar 6;16(5):2120. doi: 10.3390/ma16052120.

DOI:10.3390/ma16052120
PMID:36903234
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10004489/
Abstract

C/C-SiC-(ZrHf)C composites were prepared by the reactive melt infiltration method. The microstructure of the porous C/C skeleton and the C/C-SiC-(ZrHf)C composites, as well as the structural evolution and ablation behavior of the C/C-SiC-(ZrHf)C composites, were systematically investigated. The results show that the C/C-SiC-(ZrHf)C composites were mainly composed of carbon fiber, carbon matrix, SiC ceramic, (ZrHf)C and (ZrHf)Si solid solutions. The refinement of the pore structure is beneficial to promote the formation of (ZrHf)C ceramic. The C/C-SiC-(ZrHf)C composites exhibited outstanding ablation resistance under an air-plasma environment at around 2000 °C. After ablation for 60 s, CMC-1 appeared to possess the minimum mass and linear ablation rates of only 2.696 mg/s and -0.814 µm/s, respectively, which are lower than those of CMC-2 and CMC-3. During the ablation process, a Bi-liquid phase and a liquid-solid two-phase structure were formed on the ablation surface which could act as an oxygen diffusion barrier to retard further ablation, which is responsible for the excellent ablation resistance of the C/C-SiC-(ZrHf)C composites.

摘要

采用反应熔体浸渗法制备了C/C-SiC-(ZrHf)C复合材料。系统研究了多孔C/C骨架和C/C-SiC-(ZrHf)C复合材料的微观结构，以及C/C-SiC-(ZrHf)C复合材料的结构演变和烧蚀行为。结果表明，C/C-SiC-(ZrHf)C复合材料主要由碳纤维、碳基体、SiC陶瓷、(ZrHf)C和(ZrHf)Si固溶体组成。细化孔结构有利于促进(ZrHf)C陶瓷的形成。C/C-SiC-(ZrHf)C复合材料在2000℃左右的空气等离子体环境下表现出优异的抗烧蚀性能。烧蚀60 s后，CMC-1的质量烧蚀率和线烧蚀率最低，分别仅为2.696 mg/s和-0.814 µm/s，低于CMC-2和CMC-3。在烧蚀过程中，烧蚀表面形成了双液相和液固两相结构，可作为氧扩散阻挡层，延缓进一步烧蚀，这是C/C-SiC-(ZrHf)C复合材料具有优异抗烧蚀性能的原因。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/142e45fd20b9/materials-16-02120-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/61c84804f468/materials-16-02120-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/d2dd58d04d26/materials-16-02120-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/3c6ce628276d/materials-16-02120-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/dd81fbdec4bb/materials-16-02120-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/5429ce556e24/materials-16-02120-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/08b5ff346514/materials-16-02120-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/4681e67ce8ce/materials-16-02120-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/86f9a612e6a5/materials-16-02120-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/ff7d4f9a6eed/materials-16-02120-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/142e45fd20b9/materials-16-02120-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/61c84804f468/materials-16-02120-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/d2dd58d04d26/materials-16-02120-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/3c6ce628276d/materials-16-02120-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/dd81fbdec4bb/materials-16-02120-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/5429ce556e24/materials-16-02120-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/08b5ff346514/materials-16-02120-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/4681e67ce8ce/materials-16-02120-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/86f9a612e6a5/materials-16-02120-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/ff7d4f9a6eed/materials-16-02120-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238c/10004489/142e45fd20b9/materials-16-02120-g010.jpg

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