To improve the ablation resistance of C/C composites under oxyacetylene flame, SiC, TaC and HfC coatings were fabricated on composites surface. Ablation properties of coatings were detected and the ablation mechanism was discussed in the paper as well. The centre region of SiC and TaC coatings has failed during ablation and exhibited high ablative rates; it attributed to so high ablation temperature, which was much higher melting point of their oxides (Ta2O5 and SiO2). HfC coating exhibited lowest ablative rates. The reason is that the ablation temperature was just between sinter point and melting temperature of HfO2, the oxides could behave as the thermal barrier coating during ablation and provide efficient protection for C/C composites. It can be indicated that the carbide coating provides best ablation protection between the Tammann temperature and melting point of their oxides.
LachaudJ, BertrandN, VignolesGL, A theoretical/experimental approach to the intrinsic oxidation reactivities of C/C composites and their components. Carbon. 2007;45:2768–2776. doi: 10.1016/j.carbon.2007.09.034
4.
QiangXF, LiHJ, ZhangYL, Mechanical and oxidation protective properties of SiC nanowires-toughened SiC coating prepared in-situ by CVD process on C/C composites. Surf Coating Technol. 2016;307:91–98. doi: 10.1016/j.surfcoat.2016.08.072
5.
FengT, LiHJ, FuQG, Oxidation and ablation resistance of ZrB2-CrSi2-Si/SiC coating for C/C composites at high temperature. J Alloys Compd. 2016;662:302–307. doi: 10.1016/j.jallcom.2015.12.011
6.
TartabiniP, BoseDM, ThornblomMN, Mach 10 stage separation analysis for the X43-A. AIAA. 2006:1038–1000.
7.
LiCJ. Application of mesophases pitch based carbon fibers reinforced C/C composites in hypersonic vehicles. High-Tech Fiber Appl. 2015;40:8–14.
WangYL, XiongX, LiGD, Ablation behavior of HfC protective coatings for carbon/carbon composites in an oxyacetylene combustion flame. Corros Sci. 2012;65:549–555. doi: 10.1016/j.corsci.2012.08.064
10.
WangYL, XiongX, ZhaoXJ, Structural evolution and ablation mechanism of a hafnium carbide coating on a C/C composite in an oxyacetylene torch environment. Corros Sci. 2012;61:156–161. doi: 10.1016/j.corsci.2012.04.033
11.
WangYL, XiongX, ZhaoXJ, Action mechanism of hydrogen gas on deposition of HfC coating usingHfCl4-CH4-H2-Ar system. Appl Surf Sci. 2016;390:903–908. doi: 10.1016/j.apsusc.2016.08.169
12.
ChenZK, XiongX, LiGD, Ablation behaviors of carbon/carbon composites with C-SiC-TaC multi-interlayers. Appl Surf Sci. 2009;255:9217–9223. doi: 10.1016/j.apsusc.2009.07.006
13.
XiongX, WangYL, ChenZ, Mechanical properties and fracture behaviors of C/C composites with PyC/TaC/PyC, PyC/SiC/TaC/PyC multi-interlayers. Solid State Sci. 2009;11:1386–1392. doi: 10.1016/j.solidstatesciences.2009.04.021
14.
WangSL, LiKZ, LiHJ, Ablation behavior of CVD-ZrC coating under oxyacetylene torch environment with different heat fluxes. Int J Refract Met H. 2015;48:108–114. doi: 10.1016/j.ijrmhm.2014.07.042
15.
WangSL, LiKZ, LiHJ, Effects of microstructures on the ablation behaviors of ZrC deposited by CVD. Surf Coatings Technol. 2014;240:450–455. doi: 10.1016/j.surfcoat.2013.12.074
16.
LiuQM, ZhangLT, ChengLF, Morphologies and growth mechanisms of zirconium carbide films by chemical vapour deposition. J Coating Technol Res. 2009;6:269–273. doi: 10.1007/s11998-008-9117-5
WuH, LiHJ, FuQG, Microstructures and ablation resistance of ZrC coating for SiC-coated carbon/carbon composites prepared by supersonic plasma spraying. J Therm Spray Technol. 2011;20:1286–1291. doi: 10.1007/s11666-011-9676-3
20.
YaoDJ, LiHJ, FuQG, Ablation resistance of ZrC/SiC gradient coating for SiC-coated carbon/carbon composites prepared by supersonic plasma spraying. J Eur Ceram Soc. 2015;36:3739–3746. doi: 10.1016/j.jeurceramsoc.2016.02.047
21.
HeYG, LiKZ, WeiJF, Study on the microstructures and mechanical properties of 2D C/C composites. J Inorg Mater. 2010;25:173–179. doi: 10.3724/SP.J.1077.2010.00173
22.
LiHJ, WangYJ, FuQG, Sic nanowires toughed HfC ablative coating for C/C composites. J Mater Technol. 2015;31:70–76. doi: 10.1016/j.jmst.2014.03.024
23.
LiHJ, WangYJ, FuQG, Ablation behaviour of a TaC coating on SiC coated C/C composites at different temperatures. Ceram Inter. 2013;39:359–365. doi: 10.1016/j.ceramint.2012.06.034
24.
ZhouYP. Calculation on heat flux density in oxyacetylene flame test. J Astronaut Metrol Meas. 2011;31:12–14.
25.
LiuL, LiHJ, FengW, Ablation in different heat fluxes of C/C composites modified by ZrB2-ZrC and ZrB2-ZrC-SiC particles. Corros Sci. 2013;74:159–167. doi: 10.1016/j.corsci.2013.04.038
26.
ZhangYL, HuH, ZhangPF, Sic/ZrB2–SiC–ZrC multilayer coating for carbon/carbon composites against ablation. Surf Coatings Technol. 2016;300:1–9. doi: 10.1016/j.surfcoat.2016.05.028
27.
HuZQ. Inorganic materials science foundation. Beijing: Chemical Industry Press, 2011:220.
28.
ShenXT, LiKZ, LiHJ, Microstructure and ablation properties of zirconium carbide doped carbon/carbon composites. Carbon. 2010;48:344–351. doi: 10.1016/j.carbon.2009.09.035
29.
LiCY, LiKZ, OuyangHB, HuangJF, Effect of ZrO2 morphology on the ablation resistance of carbon/carbon composites containing ZrC prepared by the carbothermal reduction reaction. Corros Sci. 2016;102:405–412. doi: 10.1016/j.corsci.2015.10.033
30.
XiangLY, ChengLF, FanXM, Effect of interfaces on the ablation properties of laminated HfC-SiC ceramics under oxyacetylene torch. Corros Sci. 2015;93:172–179. doi: 10.1016/j.corsci.2015.01.021
31.
YanCL, LiuRJ, ZhangCR, Effect of SiC/HfC ratios on the ablation and mechanical properties of 3D Cf/HfC-SiC composites. J Eur Ceram Soc. 2017;37:2343–2351. doi: 10.1016/j.jeurceramsoc.2017.01.017
32.
YangY, LiKZ, LiuGX, ZhaoZG. Ablation mechanism of HfC-HfO2 protective coating for SiC-coated C/C composites in an oxyacetylene torch environment. J Mater Sci Technol. 2016. DOI:10.1016/j.jmst.2016.11.010
