Anti-Ablation Property of MoSi2 Coatings Deposited by APS
| Autor: | Quan Sheng Wang, Wen Chao Fan, Kang Zhi Ma, Yan Bo Liu, Jun Liang Liu, Si Hao Wei |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Thermal shock
Materials science Mechanical Engineering medicine.medical_treatment Composite number Plasma engineering.material Condensed Matter Physics Cementation (geology) Ablation Thermal expansion Thermal conductivity Coating Mechanics of Materials engineering medicine General Materials Science Composite material |
| Zdroj: | Materials Science Forum. 789:522-529 |
| ISSN: | 1662-9752 |
| Popis: | Carbon fiber reinforced carbon matrix composites (C/C) have received much attention due to their excellent high-temperature strength, high thermal conductivity, low coefficient of thermal expansion (CTE), good thermal shock resistance. However, the poor ablation resistance of the C/C restricts its high temperature ablating applications. Making a thin anti-ablation coating on the C/C has been proved to improve the performance effectively. In order to improve the anti-ablation property of the composite, MoSi2 coatings were deposited by Atmosphere Plasma Spraying (APS) on the SiC covered C/C matrix. The SiC coatings were prepared by pack cementation. Oxyacetylene flame torch was selected to simulate the ablation situation. The ablation temperature was 1800°C. XRD and SEM were employed to discover the diversification of the coatings structure and composition. And the mechanism of anti-ablation of the MoSi2 coatings system was investigated in this paper. |
| Databáze: | OpenAIRE |
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