Carbon nanotubes in novel ceramic matrix nanocomposites

Peigney, Alain; Laurent, C.; Flahaut, Emmanuel; Rousset, A.

doi:10.1016/s0272-8842(00)00004-3

Cited by 380 publications

(190 citation statements)

References 14 publications

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“…One of the first studies on synthesis of CNT/ceramic composites (published in two parts) was authored by Peigney and co-workers 39,40 [41][42][43][44][45][46][47][48] . These composite powders can then be hot pressed to form macroscopic composites.…”

Section: In-situ Growth Of Cnts By Chemical Vapour Decomposition (Cvd)mentioning

confidence: 99%

Ceramic matrix composites containing carbon nanotubes

2009

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Due to the remarkable physical and mechanical properties of individual, perfect carbon nanotubes (CNTs), they are considered to be one of the most promising new reinforcements for structural composites. Their impressive electrical and thermal properties also suggest opportunities for multifunctional applications. In the context of inorganic matrix composites, researchers have particularly focussed on CNTs as toughening elements to overcome the intrinsic brittleness of the ceramic or glass material. Although there are now a number of studies published in the literature, these inorganic systems have received much less attention than CNT/polymer matrix composites. This paper reviews the current status of the research and development of CNT-loaded ceramic matrix composite materials. It includes a summary of the key issues related to the optimisation of CNT-based composites, with particular reference to brittle matrices and provides an overview of the processing techniques developed to 2 optimise dispersion quality, interfaces and density. The properties of the various composite systems are discussed, with an emphasis on toughness; a comprehensive comparative summary is provided, together with a discussion of the possible toughening mechanism that may operate. Lastly, a range of potential applications are discussed, concluding with a discussion of the scope for future developments in the field.3

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Section: In-situ Growth Of Cnts By Chemical Vapour Decomposition (Cvd)mentioning

confidence: 99%

Ceramic matrix composites containing carbon nanotubes

2009

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“…Reaction (4) can only occur after reaction (3) is completed and enough O 2 has been produced by reaction (5). Consequently, (4) takes place if CA is defective.…”

Section: Citric Acid Combustion (Powders Ca05 Ca1 and Ca2)mentioning

confidence: 99%

“…3 This method, which obviates any mixing step, is particularly interesting for the subsequent preparation of dense oxide-matrix composites with a very homogeneous dis-tribution of the CNTs. [4][5][6] It has been shown that the starting solid solution for CNT production must be crystallised in the corundum form 7 and that a partitioning into two phases, ␣-Al 2 O 3 rich (␣ 1 ) and ␣-Fe 2 O 3 rich (␣ 2 ), respectively, must be avoided. 8 Moreover, to optimise the amount of CNTs, a maximum iron content in the single-phase oxide is desirable.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of the metastable α-Al1.8Fe0.2O3 solid solution from precursors prepared by combustion

Cordier

Peigney

Grave

et al. 2006

Journal of the European Ceramic Society

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. AbstractThe aim of the paper is to synthesise ␣-Al 1.8 Fe 0.2 O 3 solid solutions from precursors prepared by the nitrate/fuel combustion synthesis route, using either citric acid or urea, or a mixture of both as the fuel, and different fuel/nitrates ratios. In a first part, global reactions are proposed for each synthesis, which are useful to explain the differences in powder volume, morphology, crystallisation state and specific surface area reported in the second part of the study. In a third part, the powders were further calcined at 1100 • C in order to obtain the corundum form. A combination of Mössbauer spectroscopy, XRD and specific surface area measurements revealed that only the powders prepared with Φ e = 2 are the desired monophased ␣-Al 1.8 Fe 0.2 O 3 solid solutions.

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“…Even in composites a very small amount of CNTs can induce significant changes in the material's properties. At present much work continues on the development of CNTs reinforced polymer, ceramic and metal matrix composites (Peigney et al 2000;Ning et al 2003;Qiu et al 2003). However, very little work is carried out on carbon-reinforced carbon composites (Gao et al 2005;Song et al 2007;Song et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Strengthening of semicoke based carbon composites through multi-wall carbon nanotubes

2013

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The present investigation explored the possibility of developing carbon composites using semicoke as matrix precursor and multi-walled carbon nanotubes (MWCNTs) as reinforcement. The different weight fraction of MWCNTs was incorporated in semicoke-based composites, and these composites were heat treated at 1,000, 1,400 and 2,500°C. The MWCNTs carbon composite was characterized for electrical, thermal and mechanical properties. It was observed that the bulk density of composites with 1 wt% of MWCNTs was 1.92 g/cc, whereas without nanotubes it was 1.87 g/cc. The bending strength of carbonized composites was increased by 78 % and that of graphitized ones by 69 % at 1 wt% of MWCNTs. This value of bending strength was three times higher than that of conventional graphite. The electrical and thermal conductivity increased by 12 and 33 %, respectively. The Raman spectroscopic studies showed that intensity ratio of D and G band (ID)/(IG) ratio minimum deflects the lower level of defects and higher degree of graphitization in carbon composites at 1 wt% of MWCNTs. This demonstrates that in case of MWCNTs, semicoke-based carbon composites with 1 wt% of MWCNTs were sufficient for strengthening carbon composites, if MWCNTs were well dispersed in semicoke.

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Carbon nanotubes in novel ceramic matrix nanocomposites

Cited by 380 publications

References 14 publications

Ceramic matrix composites containing carbon nanotubes

Ceramic matrix composites containing carbon nanotubes

Synthesis of the metastable α-Al1.8Fe0.2O3 solid solution from precursors prepared by combustion

Strengthening of semicoke based carbon composites through multi-wall carbon nanotubes

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