A Multilayer SiC/ZrB2/SiC Ablation Resistance Coating for Carbon/Carbon Composites

2018 ◽  
Vol 21 (5) ◽  
pp. 1800774
Author(s):  
Guodong Sun ◽  
Hejun Li ◽  
Dongjia Yao ◽  
Hui Li ◽  
Pengfei Yu ◽  
...  
Keyword(s):  
Carbon Composites ◽  
Ablation Resistance

scholarly journals Ablation mechanism and morphology evolution of the HfC-SiC coating for C/C composites deposited by supersonic atmospheric plasma spraying

2019 ◽  
Vol 28 ◽  
pp. 096369351986994 ◽  
Author(s):  
Yang Yang ◽  
Kezhi Li ◽  
Chun Zhao
Keyword(s):  
Plasma Spraying ◽  
Atmospheric Plasma Spraying ◽  
Atmospheric Plasma ◽  
Carbon Composites ◽  
X Ray Diffraction ◽  
Ablation Resistance ◽  
Ablation Mechanism ◽  
Coated Carbon ◽  
Supersonic Atmospheric Plasma Spraying ◽  
New Phase

HfC-SiC protective coating was deposited on the surface of SiC-coated carbon/carbon composites by supersonic atmospheric plasma spraying due to the high arc temperature and the efficient deposition rate. The morphology and microstructure of the HfC-SiC coating were analyzed by X-ray diffraction and scanning electron microscopy. The results showed that Hf and Si elements distributed uniformly in the coating and the coating was dense without crack. Ablation resistance test was processed by oxyacetylene torch. During the ablation process, the sintering rate of HfO2 was slow, and more oxygen diffused into the internal coating, which caused the oxidation of the internal coating and damaged the structure of internal coating in the ablation center region. In addition, during cooling process, a new phase HfSiO4 was generated by the reaction between HfO2 and SiO2, which acted as a pinning agent to prevent the further expansion of the crack.

scholarly journals Ablation Behaviour and Microstructure of Carbon/Carbon and Hybrid Carbon/Carbon Composites Based on Plasma Torch Heating

2017 ◽  
Vol 26 (4) ◽  
pp. 096369351702600 ◽  
Author(s):  
Li Ma ◽  
Lu Jv He ◽  
Cai Song Mo ◽  
Li Bin Zhang ◽  
Mao Sen Pan ◽  
...  
Keyword(s):  
Plasma Torch ◽  
Carbon Matrix ◽  
Ablation Rate ◽  
Carbon Composites ◽  
Carbon Fibres ◽  
Fibre Bundles ◽  
Composites Materials ◽  
Ablation Resistance ◽  
Resistance Performance ◽  
Hybrid Carbon

The ablation properties and morphologies of two kinds of fine Fine-woven pierced composites materials, carbon/carbon (C/C) and hybrid C/C with tungsten (W) filaments in z directional carbon fibre bundles, were investigated. A plasma torch was used to explore the ablative characteristics in terms of linear/bulk ablation rate and microscopic pattern of ablation. Surface and in-depth temperatures during ablation were measured by using optical pyrometers and thermocouples. The experimental results showed that the C/C composite presented the best ablation resistance performance, followed by the hybrid C/C composite, while that of graphite was the worst. It was found that the thermo-mechanical ablation resistance of carbon matrix is equal to that of carbon fibres. The existence of WC not only had a faster intrinsic ablation velocity, but also accelerated the ablation velocity of the carbon fibres and carbon matrix, and significantly improved the ablation velocity of the carbon fibres.

Ablation Resistance of APS Sprayed Mullite/ZrB 2 -MoSi 2 Coating for Carbon/Carbon Composites

2018 ◽  
Vol 47 (4) ◽  
pp. 1043-1048 ◽  
Author(s):  
Han Wei ◽  
Liu Min ◽  
Deng Chunming ◽  
Liu Xuezhang ◽  
Zeng Dechang ◽  
...  
Keyword(s):  
Carbon Composites ◽  
Ablation Resistance

Oxidation and ablation resistance of ZrB2–SiC–Si/B-modified SiC coating for carbon/carbon composites

2013 ◽  
Vol 67 ◽  
pp. 292-297 ◽  
Author(s):  
Tao Feng ◽  
He-Jun Li ◽  
Xiao-Hong Shi ◽  
Xi Yang ◽  
Shao-Long Wang
Keyword(s):  
Carbon Composites ◽  
Ablation Resistance

Ablation resistance of HfC-TaC/HfC-SiC alternate coating for SiC-coated carbon/carbon composites under cyclic ablation

2021 ◽  
Vol 41 (6) ◽  
pp. 3207-3218
Author(s):  
Guanghui Feng ◽  
Hejun Li ◽  
Xiyuan Yao ◽  
Hang Zhou ◽  
Yulan Yu ◽  
...  
Keyword(s):  
Carbon Composites ◽  
Ablation Resistance ◽  
Coated Carbon

scholarly journals Microstructure and ablation resistance of ZrC nanostructured coating for carbon/carbon composites

2013 ◽  
Vol 107 ◽  
pp. 99-102 ◽  
Author(s):  
Shao-Long Wang ◽  
Ke-zhi Li ◽  
He-Jun Li ◽  
Yu-Lei Zhang
Keyword(s):  
Nanostructured Coating ◽  
Carbon Composites ◽  
Ablation Resistance

Microstructure and ablation resistance of carbon/carbon composites with a zirconium carbide rich surface layer

2014 ◽  
Vol 85 ◽  
pp. 160-166 ◽  
Author(s):  
Cuiyan Li ◽  
Kezhi Li ◽  
Hejun Li ◽  
Yulei Zhang ◽  
Haibo Ouyang ◽  
...  
Keyword(s):  
Surface Layer ◽  
Zirconium Carbide ◽  
Carbon Composites ◽  
Ablation Resistance

Microstructures and Ablation Resistance of ZrC Coating for SiC-Coated Carbon/Carbon Composites Prepared by Supersonic Plasma Spraying

2011 ◽  
Vol 20 (6) ◽  
pp. 1286-1291 ◽  
Author(s):  
Heng Wu ◽  
He-jun Li ◽  
Qian-gang Fu ◽  
Dong-jia Yao ◽  
Yong-jie Wang ◽  
...  
Keyword(s):  
Plasma Spraying ◽  
Carbon Composites ◽  
Ablation Resistance ◽  
Supersonic Plasma ◽  
Zrc Coating ◽  
Coated Carbon
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