Characteristics of ZrC Barrier Coating on SiC-Coated Carbon/Carbon Composite Developed by Thermal Spray Process
| Autor: | Jung Min Lee, Phil Yong Oh, Bo-Ram Kang, Ho Seok Kim, Seong Min Hong, Hyung Ik Lee |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
medicine.medical_treatment carbon/carbon (C/C) composites Composite number chemistry.chemical_element 02 engineering and technology engineering.material 01 natural sciences lcsh:Technology Buffer (optical fiber) Article Coating 0103 physical sciences medicine General Materials Science Composite material Thermal spraying lcsh:Microscopy lcsh:QC120-168.85 010302 applied physics lcsh:QH201-278.5 lcsh:T Reinforced carbon–carbon ablation resistance 021001 nanoscience & nanotechnology Ablation ultra-high temperature ceramic (UHTC) chemistry lcsh:TA1-2040 engineering lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering vacuum plasma spray (VPS) 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) Layer (electronics) Carbon lcsh:TK1-9971 |
| Zdroj: | Materials Volume 12 Issue 5 Materials, Vol 12, Iss 5, p 747 (2019) |
| ISSN: | 1996-1944 |
| DOI: | 10.3390/ma12050747 |
| Popis: | A thick ZrC layer was successfully coated on top of a SiC buffer layer on carbon/carbon (C/C) composites by vacuum plasma spray (VPS) technology to improve the ablation resistance of the C/C composites. An optimal ZrC coating condition was determined by controlling the discharge current. The ZrC layers were more than 70 µ m thick and were rapidly coated under all spraying conditions. The ablation resistance and the oxidation resistance of the coated layer were evaluated in supersonic flames at a temperature exceeding 2000 ° C. The mass and linear ablation rate of the ZrC-coated C/C composites increased by 2.7% and 0.4%, respectively. During flame exposure, no recession was observed in the C/C composite. It was demonstrated that the ZrC coating layer can fully protect the C/C composites from oxidation and ablation. |
| Databáze: | OpenAIRE |
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