Mechanical properties and ablation behavior of C/C-ZrC and C/C-ZrC-SiC composites prepared by precursor infiltration and pyrolysis combined with chemical vapor infiltration

Li, Kezhi; Kou, Gang; Li, Tianyu

doi:10.1016/j.ceramint.2018.09.131

Cited by 36 publications

(5 citation statements)

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“…Reactions (1)- (10) can occur in all regions of the ablation surface, and the reactions (11) and (12) may occur in high temperature regions, especially in the surface ablation layer [53]. When ablation begun, the carbides, HfB 2 and C were oxidized, forming a Zr-Si-Hf-O layer on the surface.…”

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confidence: 99%

Ablation properties of ZrC-SiC-HfB₂ ceramic with different amount of carbon fiber under an oxyacetylene flame

Shojaie-Bahaabad

Hasani-Arefi

2020

Mater. Res. Express

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In the present work, a carbon fiber reinforced ZrC-20 vol% SiC-15 vol% HfB 2 composite was produced by pressureless sintering method. Carbon fiber with various weight percentages (0, 10, 20, 30) was added to the milled ZrC-SiC-HfB 2 . The mixed powders were pressed and sintered at 2200°C for 2 h. The microstructure and mechanical properties of the specimens were investigated by Scanning Electron Microscope (SEM) equipped with EDS spectroscopy, XRD analysis and hardness and toughness tests. The ablation resistance of the composites was performed by oxyacetylene torch. The results showed that as the carbon fiber content was increased, the porosity and toughness were increased as well, while the hardness and density were decreased. During the ablation test, the outer surface of the composite underwent a sintering process and formed a dense layer of Zr-Hf-Si-O on the surface. ZrSiO 4 and HfSiO 4 were also created after cooling, so these phases played a pinning effect and prevented the crack propagation. The results also showed that linear and mass ablation rates were increased with increasing the weight percentage of the carbon fiber. SEM analysis with EDS further revealed that with increasing the carbon content, the defects in the formed oxide layer on the composite surface were increased due to the evaporation of SiO 2 and the decrease in the pinning effect of ZrSiO 4 and HfSiO 4 phases as well as the phase transformation of the remained ZrO 2 and HfO 2 . As a result, as the carbon fiber was increased, the ablation resistance of the composite was decreased.

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Section: ( ) ( ) ( )mentioning

confidence: 99%

Ablation properties of ZrC-SiC-HfB₂ ceramic with different amount of carbon fiber under an oxyacetylene flame

Shojaie-Bahaabad

Hasani-Arefi

2020

Mater. Res. Express

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“…Hybrid processes, where two or more of the above-mentioned techniques are used, help improve the benefits and combat some of the issues with individual processing techniques. 19,91,[104][105][106][107][108][109][110] In fact, a large majority of research in the past 3 years has utilized hybrid techniques for this very reason. For example, the negative small-scale porosity left behind from phenolic infiltration/PIP can be filled in through a follow-on CVI 6,104,[111][112][113] , CLVD 91 , or RMI 105,110 to create a dense matrix.…”

Section: Hybrid Processesmentioning

confidence: 99%

“…19,91,[104][105][106][107][108][109][110] In fact, a large majority of research in the past 3 years has utilized hybrid techniques for this very reason. For example, the negative small-scale porosity left behind from phenolic infiltration/PIP can be filled in through a follow-on CVI 6,104,[111][112][113] , CLVD 91 , or RMI 105,110 to create a dense matrix. By using fewer PIP cycles, there is also less thermal damage imparted on the fiber phase.…”

Section: Hybrid Processesmentioning

confidence: 99%

Processing of fiber‐reinforced ultra‐high temperature ceramic composites: A review

Rueschhoff

Carney

Apostolov

et al. 2019

Int J Ceramic Engine & Sci

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Ultra-high temperature ceramics (UHTCs) have emerged as promising materials for high-temperature aerospace applications due to their high melting temperature and superior ablation performance. Even still, they have yet to reach their full potential due to the catastrophic brittle failure that typically accompanies the intrinsic low fracture toughness of ceramic materials. Therefore, the emerging field of UHTC ceramic matrix composites (UHTCMCs) offers the toughness benefits of a composite with the high temperature stability of UHTCs. Here, we outline work in the last decade on the processing of UHTCs with a reinforcing fiber phase for enhanced fracture toughness. Included are fibers of both carbon and silicon carbide composition in both continuous and chopped fiber lengths. Particular emphasis is given to emerging research from the last few years to highlight novel developments. K E Y W O R D Sceramic matrix composites, ceramic processing, ultra-high temperature ceramics How to cite this article: Rueschhoff LM, Carney CM, Apostolov ZD, Cinibulk MK. Processing of fiber-reinforced ultra-high temperature ceramic composites: A review.

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“…C/C-SiC-ZrC composites are one of the most promising materials working in conditions of ultra-high temperatures. Various methods have been developed and successfully prepared the composites, such as chemical vapor infiltration [ 1 ], precursor infiltration pyrolysis [ 2 ], reactive melt infiltration [ 3 ], slurry impregnation [ 4 ], sol-gel [ 5 ], carbothermal reaction [ 6 ], chemical liquid-vapor deposition [ 7 ], and so on. Meanwhile, the ablation resistance of the C/C-SiC-ZrC has been greatly studied since the property is vital to its aerospace application.…”

Section: Introductionmentioning

confidence: 99%

Effect of Single Loading Time to the Cyclic Ablation of C/C-SiC-ZrC Composite

et al. 2022

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To understand the influence of single loading time on the cyclic ablation of carbide modified C/C composites, a C/C-SiC-ZrC composite was impacted by plasma at 2600 K for 50 s under reciprocating 0.5 (C0.5) and 5 s (C5), respectively. The composites displayed similar negative mass and rising positive linear ablation rates from C0.5 to C5. Phases, micro-morphologies, and surface temperature analysis suggested that the partially oxidized SiC-ZrC covering on the ablated sample cracked and was persistently peeled off. The mass gain resulted from the ceramic’s protection of the nearby carbon from complete oxidation. The longer single loading of 5 s caused strengthened thermal chemical reaction and mechanical erosion, which resulted in the bigger linear loss.

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Mechanical properties and ablation behavior of C/C-ZrC and C/C-ZrC-SiC composites prepared by precursor infiltration and pyrolysis combined with chemical vapor infiltration

Cited by 36 publications

References 24 publications

Ablation properties of ZrC-SiC-HfB₂ ceramic with different amount of carbon fiber under an oxyacetylene flame

Ablation properties of ZrC-SiC-HfB₂ ceramic with different amount of carbon fiber under an oxyacetylene flame

Processing of fiber‐reinforced ultra‐high temperature ceramic composites: A review

Effect of Single Loading Time to the Cyclic Ablation of C/C-SiC-ZrC Composite

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Mechanical properties and ablation behavior of C/C-ZrC and C/C-ZrC-SiC composites prepared by precursor infiltration and pyrolysis combined with chemical vapor infiltration

Cited by 36 publications

References 24 publications

Ablation properties of ZrC-SiC-HfB2 ceramic with different amount of carbon fiber under an oxyacetylene flame

Ablation properties of ZrC-SiC-HfB2 ceramic with different amount of carbon fiber under an oxyacetylene flame

Processing of fiber‐reinforced ultra‐high temperature ceramic composites: A review

Effect of Single Loading Time to the Cyclic Ablation of C/C-SiC-ZrC Composite

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Ablation properties of ZrC-SiC-HfB₂ ceramic with different amount of carbon fiber under an oxyacetylene flame

Ablation properties of ZrC-SiC-HfB₂ ceramic with different amount of carbon fiber under an oxyacetylene flame