Carbon/Carbons and Their Industrial Applications

Weiß, Roland

doi:10.1002/9783527622412.ch4

Cited by 13 publications

(8 citation statements)

References 96 publications

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“…C-C is an example of a weak matrix composite with a strong, high modulus fiber in a low strength, low modulus matrix. C-C composite [26][27][28][29] materials are a class of high-temperature materials that consist of a carbon or graphite matrix, reinforced with carbon or graphite fibers. They can exhibit many of the high-temperature properties of graphite, such as low CTE and high thermal conductivity, but frequently additionally offer higher elastic modulus and strength.…”

Section: Background Of C-c Composite Materialsmentioning

confidence: 99%

Status Report on ASME Code Development for Nonmetallic Core Components in 2020

Geringer

Burchell

2020

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Section: Background Of C-c Composite Materialsmentioning

confidence: 99%

Status Report on ASME Code Development for Nonmetallic Core Components in 2020

Geringer

Burchell

2020

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“…In 1970s, C/C composite was developed as lightweight structures for the applications such as rocket nozzles, engine flaps, leading edges of spacecraft and brake disks of aircraft. 38 They had to be designed as limited life structures because the environmental conditions were highly aggressive. The application of C/C for long time is restricted by the oxidation of carbon at temperatures above approximately 500°C.…”

Section: Non-oxide Cmcsmentioning

confidence: 99%

Fibre-reinforced multifunctional SiC matrix composite materials

Yin

Cheng

Zhang

et al. 2016

International Materials Reviews

249

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In the last two decades, fibre-reinforced SiC ceramic-matrix composites (CMCs) have attracted extensive interests. Owing to the designable multi-scale microstructure feature and the tailorable processing methods such as chemical vapour infiltration and polymer derived ceramics, SiC matrix composites attain great potential as multifunctional composites. Through designing the fibre, interphase, matrix and coating, the composite exhibits a multitude of functionalities which are desirable for various technological applications. Besides strengthening and toughening design of CMCs, three inspiring issues of multifunctional CMCs are receiving increasing attention, including crack self-healing, friction self-lubrication, and electromagnetic shielding and absorption, which are the key mechanisms to promote the application of CMCs in hot structures of engines and aerospace vehicles, braking pads/discs, various electronic devices, etc. The present review covers the main mechanisms on strengthening and toughening, crack selfhealing, friction self-lubrication, and electromagnetic shielding and absorption of CMCs. Key developments and future challenges in this field are summarised.

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“…The low density, high strength at very high temperatures (>2000°C), and toughness of carboncarbon (C/C) make it attractive for aerospace applications where high temperatures are experienced e.g. rocket nozzles and leading edges on re-entry vehicles [1,2]. However, it is susceptible to oxidation [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…rocket nozzles and leading edges on re-entry vehicles [1,2]. However, it is susceptible to oxidation [1,2]. Oxidation resistance can be provided by replacing the carbon matrix with silicon carbide (SiC) [1] or by providing a protective coating [1, 2, 3, and 4].…”

Section: Introductionmentioning

confidence: 99%

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Phase and strain mapping of a protective coating on carbon–carbon

Thornton

Dale

Ruff

et al. 2016

Surface and Coatings Technology

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Carbon-carbon (C/C) is used in high temperature structures. To prevent rapid oxidation of the carbon, protective coatings are applied. This paper examines such a protective coating with high energy X-ray diffraction. The coating consisted of a 0.01 mm outer layer of sodium silicate glass on a 0.2 mm layer of silicon carbide (SiC) with a 0.1 mm transition layer into the C/C of carbon fibres surrounded by a SiC matrix. It was examined in its pristine state and after heating with an oxy-acetylene torch. An area X-ray detector was used to obtain phase and strain information as a function of depth through the coating. In-plane tensile strains were observed in both a crystalline SiO 2 phase and within the SiC of the transition layer. Oxidation protection was compromised by through-thickness cracks in the SiC layer caused by the large tensile cooling strains in the layer. The strains and the density of the cracking increased after heating. However, several mechanisms were identified that moderated the strains. Based on two of these mechanisms a buffer layer of graphite between the C/C and the SiC was proposed to improve oxidation resistance. The low elastic modulus of the graphite reduces the strains in the SiC coating, which reduces the crack density, which in turn improves oxidation resistance. Adding SiC fibres to the graphite and SiC was also proposed to further reduce cracking.

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Carbon/Carbons and Their Industrial Applications

Cited by 13 publications

References 96 publications

Status Report on ASME Code Development for Nonmetallic Core Components in 2020

Status Report on ASME Code Development for Nonmetallic Core Components in 2020

Fibre-reinforced multifunctional SiC matrix composite materials

Phase and strain mapping of a protective coating on carbon–carbon

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