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25至800℃下碳/碳复合材料上SiC-VN-MoS/Ta复合涂层的摩擦学与抗烧蚀性能

Tribology and Anti-Ablation Properties of SiC-VN-MoS/Ta Composite Coatings on Carbon/Carbon Composites from 25 to 800 °C.

作者信息

Cao Jun, Chen Jianbin, Wang Xinbo, Wen Jingbo

机构信息

School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China.

Ningbo HYRB Coating Co., Ltd., Ningbo 315220, China.

出版信息

Materials (Basel). 2021 Nov 10;14(22):6772. doi: 10.3390/ma14226772.

DOI:10.3390/ma14226772
PMID:34832173
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8618471/
Abstract

To improve the self-lubrication and anti-ablation performances of C/C (carbon/carbon) composites from 25 to 800 °C, we engineered three layers of composite coatings consisting of SiC-VN-MoS/Ta to deposit on the surface of the C/C composites. The tribology and anti-ablation properties of the composite coatings were experimented under dry sliding wear. The equivalent stress and deformation of the composite coatings are studied. The results show that the CoFs (coefficients of friction) of the C/C composites are decreased by 156% at 800 °C due to the new generated self-lubricating compounds from the MoS/Ta and VN coating. The anti-ablation of the C/C composites are improved by 25,300% due to the silicon glass, and the generated compounds from V, Mo and Si. The deformation of the C/C substrate under the protection of these coatings looks like a quadrangular star. The cack of the C/C composites is easily generated without the protection from coatings.

摘要

为了提高C/C（碳/碳）复合材料在25至800°C范围内的自润滑和抗烧蚀性能，我们设计了由SiC-VN-MoS/Ta组成的三层复合涂层，沉积在C/C复合材料表面。在干滑动磨损条件下对复合涂层的摩擦学和抗烧蚀性能进行了实验研究。研究了复合涂层的等效应力和变形情况。结果表明，由于MoS/Ta和VN涂层产生了新的自润滑化合物，C/C复合材料在800°C时的摩擦系数降低了156%。由于硅玻璃以及V、Mo和Si生成的化合物，C/C复合材料的抗烧蚀性能提高了25300%。在这些涂层的保护下，C/C基体的变形呈四角星形。没有涂层保护时，C/C复合材料很容易产生裂纹。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/b4f9bd0dd966/materials-14-06772-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/c2333c013fbe/materials-14-06772-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/8b8f8506018b/materials-14-06772-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/3f9448f8a6bc/materials-14-06772-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/7465057c19ba/materials-14-06772-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/05c45d01eaa6/materials-14-06772-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/97a82517c775/materials-14-06772-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/ccd0a77df9e6/materials-14-06772-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/b4f9bd0dd966/materials-14-06772-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/c2333c013fbe/materials-14-06772-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/8b8f8506018b/materials-14-06772-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/3f9448f8a6bc/materials-14-06772-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/7465057c19ba/materials-14-06772-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/05c45d01eaa6/materials-14-06772-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/97a82517c775/materials-14-06772-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/ccd0a77df9e6/materials-14-06772-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a3e/8618471/b4f9bd0dd966/materials-14-06772-g008.jpg

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