Effects of surface temperature, flow velocity and ambient pressure on the oxidation of graphite at 1400–2000 °C in O2
Source abstract
Abstract
Abstract The effects of surface temperature (1400–2000 °C), flow velocity gradient (130–600 s−1) and ambient pressure (5–101 kPa) on the oxidation behavior of graphite were studied in O2. The weight loss rate between 1400 and 1800 °C is independent of the surface temperature but slightly decreases at 2000 °C. Besides, it displays quasi-parabolic increases with increasing the flow velocity gradient and the ambient pressure but levels off above the ambient pressure of 20 kPa. According to the theoretical analysis, the enhancement of the gas-phase CO–O2 reaction has a joint reduction effect on the weight loss rate.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Graphite, nuclear technology, radiation studies · Advanced ceramic materials synthesis · Graphene research and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. Resistance to ablation of pitch-derived ZrC/C composites10.1016/j.carbon.2004.05.006 ↗
2. Effect of ZrB2 on the ablation properties of carbon composites10.1016/j.matlet.2005.10.040 ↗
3. Fabrication and oxidation behavior of a reaction derived graphite–ZrC composite for ultrahigh temperature applications10.1016/j.matlet.2009.07.022 ↗
4. Ultra-high temperature oxidation behavior of graphite-based composites reinforced by ZrC and ZrC–TaC
5. Effects of ZrB2 and SiC dual addition on the oxidation resistance of graphite at 1600–2000°C10.1016/j.corsci.2013.06.041 ↗
6. Ablation behaviors of ultra-high temperature ceramic composites10.1016/j.msea.2007.02.040 ↗
7. Improved oxidation resistance of C–C composites using zirconium diboride and boron carbide10.1016/j.jeurceramsoc.2010.02.025 ↗
8. The effect of zirconium carbide on ablation of carbon/carbon composite under an oxyacetylene flame10.1016/j.corsci.2010.09.028 ↗
9. Ablation in different heat fluxes of C/C composites modified by ZrB2–ZrC and ZrB2–ZrC–SiC particles10.1016/j.corsci.2013.04.038 ↗
10. Effect of heat flux on ablation behaviour and mechanism of C/C–ZrB2–SiC composite under oxyacetylene torch flame10.1016/j.corsci.2013.04.052 ↗
11. Ablation resistance and thermal conductivity of carbon/carbon composites containing hafnium carbide10.1016/j.corsci.2012.10.018 ↗
12. W.G. Fahrenholtz, G.E. Hilmas, NSF-AFOSR Joint Workshop on Future Ultra-High Temperature Materials, Arlington VA, DMR-0403004, 2004.
13. D.E. Glass, Ceramic matrix composite (CMC) thermal protection systems (TPS) and hot structures for hypersonic vehicles, in: AIAA-2008-2682, 15th AIAA Space Planes and Hypersonic Systems and Technologies Conference, Dayton, Ohio, 2008.10.2514/6.2008-2682 ↗
14. S.M. Scala, The ablation of graphite in dissociated air: I. Theory, General Electric Co., GE MSD TIS R62SD72, 1962.
15. Oxidation of carbon between 1000–2400 °C10.1016/0008-6223(64)90288-X ↗
16. Miller · 1966
17. Oxidation and sublimation of graphite in simulated re-entry environments10.2514/3.4001 ↗
18. Perini · 1971
19. Oxidation and ablation of 3D carbon–carbon composite at up to 3000°C10.1016/0008-6223(94)00172-V ↗
20. C/C composite oxidation model I. Morphological experimental investigations10.1016/S0008-6223(99)00103-7 ↗
21. C/C composite oxidation model II. Oxidation experimental investigations10.1016/S0008-6223(99)00104-9 ↗
22. C/C composite oxidation model III. Physical basis, limitations and applications10.1016/S0008-6223(99)00105-0 ↗
23. Kinetics and mechanisms of the reaction of air with nuclear grade graphites: IG-11010.1016/S0022-3115(96)00462-X ↗
24. Effect of temperature on graphite oxidation behavior10.1016/j.nucengdes.2003.11.004 ↗
25. Mass transfer related to heterogeneous combustion of solid carbon in the forward stagnation region
26. Fluid-mechanical effects on the combustion rate of solid carbon10.1016/0010-2180(75)90068-1 ↗
27. A further study of the effects of water vapor concentration on the rate of combustion of an artificial graphite in humid air flow10.1016/0010-2180(86)90008-8 ↗
28. Oxidation of carbon/carbon composites – a theoretical analysis10.1016/0008-6223(88)90040-1 ↗
29. Combustion of a carbon surface in a stagnation point flow field10.1016/0010-2180(85)90131-2 ↗
30. A theoretical and experimental study of carbon combustion in stagnation flow10.1016/0010-2180(90)90062-V ↗
31. An experimental explicit expression for the combustion rate of a small carbon particle10.1016/0010-2180(92)90116-7 ↗
32. Combustion of artificial graphite in stagnation flow: estimation of global kinetic parameters from experimental results10.1016/0010-2180(94)90013-2 ↗
33. A. Makino, T. Namikiri, N. Araki, Combustion rate of graphite in a high stagnation flowfield and its expression as a function of the transfer number, in: 27th Symposium (International) on Combustion, The Combustion Institute, Pittsburgh, USA, 1998, pp. 2949–2956.10.1016/S0082-0784(98)80154-9 ↗
34. Reactions between carbon and oxygen10.1039/tf9514700164 ↗
35. Modeling of ignition and CO oxidation in the boundary layer of a single char particle10.1021/ef9502416 ↗
36. Numerical investigations of CO/CO2 ratio in char combustion10.1080/00102202.2011.569803 ↗
37. Adsorbed atomic species as intermediates in heterogeneous catalysis
38. Combustion rates of graphite rods in the forward stagnation field with high-temperature airflow10.1016/S0010-2180(02)00537-0 ↗