Surface Optimization of ZrC–SiC Inner Layer to Enhance Ablation Property of SiC/ZrC–SiC Multi-Layer Coating for C/C Composites

A ZrC–SiC inner layer was fabricated on carbon/carbon composites by pack cementation at different temperatures, aiming to prepare a transition layer for subsequent deposition of SiC and ZrC–SiC layer by chemical vapor deposition and plasma spray. Results show that the structure and phase composition of the inner layer significantly affected the interface bonding strength and thermal shock resistance of the multilayer, which played a vital role in resisting ablation. The jagged and porous surface of the inner layer led to forming a root-like pinning interface, generating a sawtooth combination between the layers. Moreover, the inner layer with high SiC content decreased the coefficient of thermal expansion mismatch between the inner and outer layers. Therefore, the enhanced ablation resistance of the optimum coating was attributed to the improved interface bonding strength and thermal shock resistance caused by the ZrC–SiC inner layer with rough and porous surface structure.

[1]  Wei Sun,et al.  Microstructures and ablation resistance of WSi2/ZrSi2/ZrxHf1-xC/SiC coating based on a pattern strengthening one-step method , 2021 .

[2]  Li Yang,et al.  Addition of Si3N4 Strengthens SiC Coatings via Heat Treatment with Nitrogen Gas onto Carbon/Carbon Composites , 2020 .

[3]  Wei Sun,et al.  Structural characteristics and ablative behavior of C/C–ZrC–SiC composites reinforced with “Z-pins like” Zr–Si–B–C multiphase ceramic rods , 2020 .

[4]  K. He,et al.  Effects of LaB6 on the microstructures and ablation properties of 3D C/C-SiC-ZrB2-LaB6 composites , 2020 .

[5]  S. Dong,et al.  Effects of preform pore structure on infiltration kinetics and microstructure evolution of RMI-derived Cf/ZrC-ZrB2-SiC composite , 2020 .

[6]  C. Rao,et al.  Surface optimization of CVD grown silicon carbide interlayer on graphite for plasma sprayed yttria topcoat , 2020 .

[7]  Qizhong Huang,et al.  Effect of CNTs addition on microstructure, ablation property and mechanism of ZrC–SiC coating for C/C–ZrC–SiC composites , 2020 .

[8]  Yajuan Zhong,et al.  Growth process and mechanism of SiC layer deposited by CVD method at normal atmosphere , 2019, Journal of the European Ceramic Society.

[9]  I. Goncharov,et al.  Effect of Heat Treatment on the Microstructure and Phase Composition of ZrB2–MoSi2 Coating , 2019, Coatings.

[10]  S. Wen,et al.  A New Assistant Method for Characterizing Ablation Resistance of ZrC-SiC Dispersive Biphasic Coating on C/C Composites , 2019, Coatings.

[11]  Yajuan Zhong,et al.  Preparation of SiC layer with sub-micro grain structure in TRISO particles by spouted bed CVD , 2019, Journal of the European Ceramic Society.

[12]  C. Ding,et al.  Laser ablation behaviors of vacuum plasma sprayed ZrC‐based coatings , 2019, Journal of the American Ceramic Society.

[13]  K. He,et al.  Microstructure and ablation properties of La2O3 modified C/C-SiC composites prepared via precursor infiltration pyrolysis , 2019, Journal of the European Ceramic Society.

[14]  C. Rao,et al.  Pack cemented silicon carbide interlayer for plasma sprayed yttria over graphite , 2019, Materials and Manufacturing Processes.

[15]  Hui‐Ming Cheng,et al.  Long-term oxidation behaviors of C/SiC composites with a SiC/UHTC/SiC three-layer coating in a wide temperature range , 2019, Corrosion Science.

[16]  Hejun Li,et al.  Gradient HfB2-SiC multilayer oxidation resistant coating for C/C composites , 2018, Ceramics International.

[17]  C. Ding,et al.  Ablation resistance of ZrC-MoSi2/ZrC-SiC double-layered coating in a plasma flame , 2018, Corrosion Science.

[18]  Q. Fu,et al.  Improved thermal shock resistance of SiCnw/PyC core-shell structure-toughened CVD-SiC coating , 2018, Journal of the European Ceramic Society.

[19]  Tie-jun Wang,et al.  Advances in oxidation and ablation resistance of high and ultra-high temperature ceramics modified or coated carbon/carbon composites , 2018 .

[20]  Bin Yang,et al.  Recovery of tungsten carbides for preparing ultrafine WC-Co composite powder using core-shell structured precursor synthesized by CVD , 2017 .

[21]  J. Zou,et al.  Thermoablative resistance of ZrB 2 -SiC-WC ceramics at 2400 °C , 2017 .

[22]  L. N. López de Lacalle,et al.  Tool wear on nickel alloys with different coolant pressures: Comparison of Alloy 718 and Waspaloy , 2017 .

[23]  Hejun Li,et al.  Mechanical and oxidation protective properties of SiC nanowires-toughened SiC coating prepared in-situ by a CVD process on C/C composites , 2016 .

[24]  Yulei Zhang,et al.  Effect of the surface microstructure of SiC inner coating on the bonding strength and ablation resistance of ZrB2-SiC coating for C/C composites , 2016 .

[25]  Hongwei Liu,et al.  Effect of ZrC–SiC content on microstructure and ablation properties of C/C composites , 2016 .

[26]  Q. Fu,et al.  Enhanced bonding strength and thermal cycling performance of MoSi2–CrSi2–SiC–Si coating for carbon/carbon composites by surface modification via blasting treatment , 2016 .

[27]  Q. Fu,et al.  Silicide Coating Fabricated by HAPC/SAPS Combination to Protect Niobium Alloy from Oxidation. , 2016, ACS applied materials & interfaces.

[28]  Hejun Li,et al.  Blasting treatment and chemical vapor deposition of SiC nanowires to enhance the thermal shock resistance of SiC coating for carbon/carbon composites in combustion environment , 2016 .

[29]  L. N. López de Lacalle,et al.  Enhanced Performance of Nanostructured Coatings for Drilling by Droplet Elimination , 2016 .

[30]  Hejun Li,et al.  Microstructure and oxidation behavior of C/C–ZrB2–SiC composites coated with SiC coating at high temperature , 2015 .

[31]  Hejun Li,et al.  Effect of carbon nanotubes on the toughness, bonding strength and thermal shock resistance of SiC coating for C/C–ZrC–SiC composites , 2015 .

[32]  J. Davim,et al.  Hot turning of a difficult-to-machine steel (sae xev-f) aided by infrared radiation , 2014 .

[33]  Hejun Li,et al.  Bamboo-shaped SiC nanowire-toughened SiC coating for oxidation protection of C/C composites , 2013 .

[34]  S. Bai,et al.  C/C–ZrC composite prepared by chemical vapor infiltration combined with alloyed reactive melt infiltration , 2012 .

[35]  M. Nygren,et al.  Spark plasma sintering and mechanical behaviour of ZrC-based composites , 2008 .

[36]  D. Lévêque,et al.  Optimizing substrate and intermediate layers geometry to reduce internal thermal stresses and prevent surface crack formation in 2-D multilayered ceramic coatings , 2008 .

[37]  Lai-fei Cheng,et al.  Morphology and growth mechanism of silicon carbide chemical vapor deposited at low temperatures and normal atmosphere , 1999 .