Tribology and Anti-Ablation Properties of SiC-VN-MoS<sub>2</sub>/Ta Composite Coatings on Carbon/Carbon Composites from 25 to 800 °C
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<sub>2</sub>/Ta to deposit on the surface of the C/C composites. The tribology and anti-ablation pr...
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oai:doaj.org-article:6c79511e7ebd41a092db86d0bb8ba2f32021-11-25T18:13:26ZTribology and Anti-Ablation Properties of SiC-VN-MoS<sub>2</sub>/Ta Composite Coatings on Carbon/Carbon Composites from 25 to 800 °C10.3390/ma142267721996-1944https://doaj.org/article/6c79511e7ebd41a092db86d0bb8ba2f32021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6772https://doaj.org/toc/1996-1944To 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<sub>2</sub>/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<sub>2</sub>/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.Jun CaoJianbin ChenXinbo WangJingbo WenMDPI AGarticlecarbon/carbon compositescomposite coatingstribologyanti-ablationwide range temperatureTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6772, p 6772 (2021) |
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DOAJ |
language |
EN |
topic |
carbon/carbon composites composite coatings tribology anti-ablation wide range temperature Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 |
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carbon/carbon composites composite coatings tribology anti-ablation wide range temperature Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Jun Cao Jianbin Chen Xinbo Wang Jingbo Wen Tribology and Anti-Ablation Properties of SiC-VN-MoS<sub>2</sub>/Ta Composite Coatings on Carbon/Carbon Composites from 25 to 800 °C |
description |
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<sub>2</sub>/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<sub>2</sub>/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. |
format |
article |
author |
Jun Cao Jianbin Chen Xinbo Wang Jingbo Wen |
author_facet |
Jun Cao Jianbin Chen Xinbo Wang Jingbo Wen |
author_sort |
Jun Cao |
title |
Tribology and Anti-Ablation Properties of SiC-VN-MoS<sub>2</sub>/Ta Composite Coatings on Carbon/Carbon Composites from 25 to 800 °C |
title_short |
Tribology and Anti-Ablation Properties of SiC-VN-MoS<sub>2</sub>/Ta Composite Coatings on Carbon/Carbon Composites from 25 to 800 °C |
title_full |
Tribology and Anti-Ablation Properties of SiC-VN-MoS<sub>2</sub>/Ta Composite Coatings on Carbon/Carbon Composites from 25 to 800 °C |
title_fullStr |
Tribology and Anti-Ablation Properties of SiC-VN-MoS<sub>2</sub>/Ta Composite Coatings on Carbon/Carbon Composites from 25 to 800 °C |
title_full_unstemmed |
Tribology and Anti-Ablation Properties of SiC-VN-MoS<sub>2</sub>/Ta Composite Coatings on Carbon/Carbon Composites from 25 to 800 °C |
title_sort |
tribology and anti-ablation properties of sic-vn-mos<sub>2</sub>/ta composite coatings on carbon/carbon composites from 25 to 800 °c |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/6c79511e7ebd41a092db86d0bb8ba2f3 |
work_keys_str_mv |
AT juncao tribologyandantiablationpropertiesofsicvnmossub2subtacompositecoatingsoncarboncarboncompositesfrom25to800c AT jianbinchen tribologyandantiablationpropertiesofsicvnmossub2subtacompositecoatingsoncarboncarboncompositesfrom25to800c AT xinbowang tribologyandantiablationpropertiesofsicvnmossub2subtacompositecoatingsoncarboncarboncompositesfrom25to800c AT jingbowen tribologyandantiablationpropertiesofsicvnmossub2subtacompositecoatingsoncarboncarboncompositesfrom25to800c |
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1718411442796888064 |