Ablation behavior of CVD-ZrC coating under oxyacetylene torch environment with different heat fluxes
Source abstract
Abstract
Abstract An ablation resistance ZrC coating composed of micrometer particles was prepared on carbon/carbon composites by chemical vapor deposition. The structure evolution, ablation property and behavior of the coating were investigated under an oxyacetylene torch environment with different heat fluxes. Results show that the ablation performance decreases with the increase of heat fluxes from 2380 to 4180 kW/m 2 . Oxidation erosion is proposed as the major ablation mechanism. The ablated coating consists of three layers (outer ZrO 2 layer, transitional ZrC x O y layer and residual ZrC layer). An oxidation progress that the ZrC is oxidized into ZrC x O y firstly and then into ZrO 2 is inferred and accelerated by the continuous diffusion of oxygen resulted from the increase of heat fluxes. During different heat flux environments, the coating exhibits efficacious mechanical denudation resistance and the formed transitional ZrC x O y and outer ZrO 2 layers act as a good oxygen diffusion barrier, which could be the reason for its high ablation resistance at the temperature of 2000–3000 °C.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (27)
Show source-provided references
1. Future of carbon–carbon composites10.1016/0008-6223(87)90116-3 ↗
2. Microstructure and oxidation of multi-layer MoSi2–CrSi2–Si coatings for SiC coated carbon/carbon composites10.1016/j.corsci.2010.05.020 ↗
3. Structural evolution and ablation mechanism of a hafnium carbide coating on a C/C composite in an oxyacetylene torch environment10.1016/j.corsci.2012.04.033 ↗
4. Oxidation protection for carbon fiber composites10.1016/0008-6223(89)90204-2 ↗
5. A simple model for the oxidation of carbon-containing composites10.1016/j.corsci.2009.12.002 ↗
6. Oxidation and ablation of 3D carbon–carbon composite at up to 3000°C10.1016/0008-6223(94)00172-V ↗
7. Ablation behaviors of carbon/carbon composites with C–SiC–TaC multi-interlayers10.1016/j.apsusc.2009.07.006 ↗
8. Elevated temperature ablation resistance of HfC particle-reinforced tungsten composites10.1016/j.ijrmhm.2013.11.009 ↗
9. Effect of surface oxidation on thermal shock resistance of ZrB2–SiC–G composite10.1016/j.ijrmhm.2009.10.013 ↗
10. Effects of microstructures on the ablation behaviors of ZrC deposited by CVD10.1016/j.surfcoat.2013.12.074 ↗
11. The effect of zirconium carbide on ablation of carbon/carbon composites under an oxyacetylene flame10.1016/j.corsci.2010.09.028 ↗
12. Oxidation behavior and mechanical properties degradation of hot-pressed Al2O3/ZrB2/ZrO2 ceramic composites10.1016/j.ijrmhm.2008.12.006 ↗
13. Microstructure and growth mechanism of ZrO2 nanorods network via oxyacetylene torch ablation10.1016/j.matlet.2014.03.012 ↗
14. The thermal shock resistance of the ZrB2–SiC–ZrC ceramic
15. Formation of ZrC ablation protective coatings on carbon material by tungsten inert gas cladding technique10.1016/j.corsci.2010.05.015 ↗
16. Fabrication of uniform ZrC coating layer for the coated fuel particle of the very high temperature reactor10.1016/j.jnucmat.2008.02.068 ↗
17. Chemical vapor deposition of ZrC on pyrocarbon-coated fuel particles10.1016/0022-3115(74)90158-5 ↗
18. Thermodynamics of ZrC—equilibrium condition calculated for deposition from a CH4–ZrCl4–H2 gaseous mixture10.1149/1.2113935 ↗
19. Oxidation behavior of WC–Co hard metal with designed multilayer coatings by CVD10.1016/j.ijrmhm.2011.10.012 ↗
20. Microstructure and ablation resistance of ZrC nanostructured coating for carbon/carbon composites10.1016/j.matlet.2013.05.124 ↗
21. Cyclic ablation behavior of C/C–ZrC–SiC composites under oxyacetylene torch10.1016/j.ceramint.2013.10.069 ↗
22. Structure evolution and ablation behavior of ZrC coating on C/C composites under single and cyclic oxyacetylene torch environment10.1016/j.ceramint.2014.07.132 ↗
23. Effect of heat fluxes on ablation behavior and mechanism of C/C–ZrB2–SiC composite under oxyacetylene torch flame10.1016/j.corsci.2013.04.052 ↗
24. Study on the microstructures and mechanical properties of 2D C/C composites10.3724/SP.J.1077.2010.00173 ↗
25. High-temperature oxidation of ZrC and HfC10.1007/BF00807779 ↗
26. A thermoanalytical study on the oxidation of ZrC and HfC powders with formation of carbon10.1016/S0167-2738(02)00180-7 ↗
27. Microstructure observation of ZrO2 scales formed by oxidation of ZrC single crystals with the formation of carbon10.1016/S0167-2738(97)00326-3 ↗