In-situ fabrication of ZrB2–SiC/SiC gradient coating on C/C composites

Hu, Cong; Niu, Yaran; Huang, Sansong; Li, Hong; Ren, Ming; Zeng, Yi; Zheng, Xiaofeng; Sun, Jianfei

doi:10.1016/j.jallcom.2015.05.205

Cited by 68 publications

(14 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Up to now, a large number of efforts have been made to fabricate UHTCs-SiC coatings, and some key methods have been adopted like reactive melt infiltration (RMI), pack cementation, and supersonic plasma spraying (SPS), etc. [8][9][10][11][12][13][14]. Zhang et al [15] selected supersonic atmosphere plasma spraying (SAPS) with ZrB 2 -SiCZrC as raw materials to form ZrB 2 -SiC-ZrC coating by the high temperature of a plasma arc and the high velocity of particles.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and microstructure of ZrB2–ZrC–SiC coatings on C/C composites by reactive melt infiltration using ZrSi2 alloy

Xue

Zhou

et al. 2018

J Adv Ceram

View full text Add to dashboard Cite

ZrB 2 -ZrC-SiC ternary coatings on C/C composites are investigated by reactive melt infiltration of ZrSi 2 alloy into pre-coatings. Two different pre-coating structures, including porous B 4 C-C and dense C/B, are designed by slurry dip and chemical vapor deposition (CVD) process respectively. The coating prepared by reactive melt infiltration (RMI) into B 4 C-C presents a flat and smooth surface with a three-layer cross-sectional structure, namely interior SiC transition layer, gradient ZrB 2 -ZrC-SiC layer, and ZrB 2 -ZrC exterior layer. In comparison, the coating prepared by RMI into C/B shows a more granular surface with a different three-layer cross-sectional structure, interior unreacted B-C pre-coating layer, middle SiC layer, and exterior ZrB 2 -ZrC-ZrSi 2 layer. The forming mechanisms of the specific microstructures in two coatings are also investigated and discussed in detail.

show abstract

Section: Introductionmentioning

confidence: 99%

Fabrication and microstructure of ZrB2–ZrC–SiC coatings on C/C composites by reactive melt infiltration using ZrSi2 alloy

Xue

Zhou

et al. 2018

J Adv Ceram

View full text Add to dashboard Cite

show abstract

“…Ultra‐high temperature ceramics such as SiC, HfC, ZrB 2 , and ZrO 2 can provide a better thermal oxidation, ablation, mechanical strength, and good thermal stability . The high melting point, better oxidation resistance, and good chemical stability of SiC and ZrO 2 ceramics make them as prospective candidates for high‐temperature heat insulation applications.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of mechanical, thermal, and ablation performance of ZrO₂/SiC modified C‐Ph composites

Subha

Singh

Venkatanarayanan

et al. 2018

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

In this study, an effort has been made to improve the mechanical, thermal, and ablation performance of carbon-phenolic (C-Ph) composites. The ZrO 2 , SiC, and ZrO 2 /SiC hybrid fillers were synthesized using sol-gel method followed by individual incorporation into C-Ph composites. The thermal stability and flexural strength of these C-Ph composites were analyzed using thermogravimetry analysis and three-point bending test, respectively. A significant improvement in the flexural strength and modulus of the reinforced C-Ph composites was observed and also exhibited the higher thermal stability. The oxyacetylene flame test was conducted to measure the ablation behavior of these filler reinforced C-Ph composites under a heat flux of 4.0 MW/m 2 for 60 seconds. ZrO 2 /SiC0.5 reinforcement in the C-Ph composite decreased the linear and mass ablation rates by 46% and 22%, respectively when compared with pure C-Ph composite. The surface morphology analysis revealed that the burnt composite covered with the ZrC ceramic phase and SiO 2 bubble-like structure, which could have improved the ablation resistance of composites. These results were found well within the acceptable range when using the surface energy dispersive spectroscopy and X-ray diffraction analysis. K E Y W O R D Sablation behavior, carbon fiber, flexural strength, nano silicon carbide, thermal stability

show abstract

“…The key for solving this problem is to explore new coating technologies and oxidation‐resistant coating systems. By now, a lot of coating systems have been invented to protect C/C composites from oxidation, such as SiC/Al 2 O 3 ‐mullite, SiC/Si‐W‐Mo, SiC/Zr x Ta 1‐x B 2 , SiC/ZrB 2 ‐SiC, and SiC/(Zr, Hf)C‐SiC . During these coatings, SiC as internal buffer layer prepared by pack cementation is generally acknowledged to be one of the most ideal coating for C/C composites due to its good mechanical properties, excellent anti‐oxidation property, and good physical‐chemical compatibility with carbon materials .…”

Section: Introductionmentioning

confidence: 99%

Oxidation resistance of SiC nanowires reinforced SiC coating prepared by a CVD process on SiC‐coated C/C composites

Xia

Zhang

et al. 2018

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Oxidation protective SiC nanowires‐reinforced SiC (SiCNWs‐SiC) coating was prepared on pack cementation (PC) SiC‐coated carbon/carbon (C/C) composites by a simple chemical vapor deposition (CVD) process. This double‐layer SiCNWs‐SiC/PC SiC‐coating system on C/C composites not only has the advantages of SiC buffer layer but also has the toughening effects of SiCNWs. The microstructure and phase composition of the nanowires and the coatings were examined by SEM, TEM, and XRD. The single‐crystalline β‐SiC nanowires with twins and stacking faults were deposited uniformly and oriented randomly with diameter of 50‐200 nm and length ranging from several to tens micrometers. The dense SiCNWs‐SiC coating with some closed pores was obtained by SiC nanocrystals stacked tightly with each other on the surface of SiCNWs. After introducing SiCNWs in the coating system, the oxidation resistance is effectively improved. The oxidation test results showed that the weight loss of the SiCNWs‐SiC/PC SiC‐coated samples was 4.91% and 1.61% after oxidation at 1073 K for 8 hours and at 1473 K for 276 hours, respectively. No matter oxidation at which temperature, the SiCNWs‐SiC/PC SiC‐coating system has better anti‐oxidation property than the single‐layer PC SiC coating or the double‐layer CVD SiC/PC SiC coating without SiCNWs.

show abstract

In-situ fabrication of ZrB2–SiC/SiC gradient coating on C/C composites

Cited by 68 publications

References 27 publications

Fabrication and microstructure of ZrB2–ZrC–SiC coatings on C/C composites by reactive melt infiltration using ZrSi2 alloy

Fabrication and microstructure of ZrB2–ZrC–SiC coatings on C/C composites by reactive melt infiltration using ZrSi2 alloy

Experimental investigation of mechanical, thermal, and ablation performance of ZrO₂/SiC modified C‐Ph composites

Oxidation resistance of SiC nanowires reinforced SiC coating prepared by a CVD process on SiC‐coated C/C composites

Contact Info

Product

Resources

About

In-situ fabrication of ZrB2–SiC/SiC gradient coating on C/C composites

Cited by 68 publications

References 27 publications

Fabrication and microstructure of ZrB2–ZrC–SiC coatings on C/C composites by reactive melt infiltration using ZrSi2 alloy

Fabrication and microstructure of ZrB2–ZrC–SiC coatings on C/C composites by reactive melt infiltration using ZrSi2 alloy

Experimental investigation of mechanical, thermal, and ablation performance of ZrO2/SiC modified C‐Ph composites

Oxidation resistance of SiC nanowires reinforced SiC coating prepared by a CVD process on SiC‐coated C/C composites

Contact Info

Product

Resources

About

Experimental investigation of mechanical, thermal, and ablation performance of ZrO₂/SiC modified C‐Ph composites