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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Autores principales: Jun Cao, Jianbin Chen, Xinbo Wang, Jingbo Wen
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Publicado: MDPI AG 2021
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spelling 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)
institution DOAJ
collection 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
spellingShingle 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
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