Carbon Nanofibers Reinforced Ceramic Matrix Composites

Hvizdoš, Pavol; Puchý, Viktor; Duszová, Annamária; Dusza, Ján

doi:10.5772/23445

Cited by 15 publications

(13 citation statements)

References 54 publications

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“…Fig. 5 summarizes the average values of friction for all materials at 5 N load, however our studies [15,17,18] yielded similar results at all used load levels. The Si 3 N 4 based materials exhibited the highest friction, particularly for low CNT contents.…”

Section: Tribological Propertiessupporting

confidence: 84%

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Tribological and electrical properties of ceramic matrix composites with carbon nanotubes

Hvizdoš

Puchý

Duszová

et al. 2012

Ceramics International

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Section: Tribological Propertiessupporting

confidence: 84%

“…Microstructure studies of the experimental materials were described in detail in our previous works [9][10][11][12][14][15][16][17][18].…”

Section: Microstructuresmentioning

confidence: 99%

Tribological and electrical properties of ceramic matrix composites with carbon nanotubes

Hvizdoš

Puchý

Duszová

et al. 2012

Ceramics International

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“…The determination of the hardness and modulus of elasticity allow useful qualitative conclusions regarding the mechanical properties of ceramic composite materials. Typically, the introduction of carbon reinforcing phases into ceramics leads to lower hardness, and its effect on the fracture toughness is ambiguous, even though there are some toughening mechanisms present in the crack, such as crack deflection, crack bridging and fibers pullout [28,29] (Figure 3a). As expected, 5 wt% and 30 wt% of MLG and GrO carbon reinforcing phases had a negative influence on the hardness of the final composites (Figure 3a).…”

Section: Mechanical Properties Of Spark Plasma Sintered Si 3 N 4 -Basmentioning

confidence: 99%

Influence of Graphene and Graphene Oxide on Properties of Spark Plasma Sintered Si3N4 Ceramic Matrix

et al. 2020

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The sintering of ceramic matrix composites is usually carried out by raising the sintering temperature below the melting point of components. Spark plasma sintering (SPS) has the capability to densify ceramics at a relatively low temperature in a very short time. Two different additions, multilayered graphene (MLG) and graphene oxide (GrO), were added to Si3N4 ceramic matrix in various amount; 5 wt% and 30 wt%. The influence of reinforcing phase on final properties of spark plasma sintered Si3N4 composite was studied. The uniaxial-pressure-assisted SPS sintering resulted in a preferential alignment of both type of graphene in the Si3N4 ceramic matrix, leading to highly anisotropic properties with lower mechanical behavior but better tribological and electrical properties.

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“…The hybrid powder was then used in lieu of a typical cement in the mixing process. This dispersion technique is relatively new to the PCBMs industry for producing bulk quantities of material, but it is often used in dispersing nanoparticles through materials like nanofiber-reinforced ceramics [28,29]. The PR-24-XT-PS CNFs purchased from Pyrograf Products, Inc., had diameters of 50-150 nm and lengths of 50-200 m as purchased.…”

Section: Dispersion Procedure Materials and Sonication Setupmentioning

confidence: 99%

Dispersion of High Concentrations of Carbon Nanofibers in Portland Cement Mortars

Hogancamp

Grasley

2017

Journal of Nanomaterials

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This research focuses on creating and maintaining a stable dispersion of carbon nanofibers (CNFs) in portland cement based materials. A microfine cement is used in conjunction with an untraditional dispersion method to encourage and stabilize the dispersion of CNFs in concentrations up to 5% by mass of cement. A computational simulation was utilized to examine an effect called geometric clustering on the dispersion of CNFs among Type I/II and microfine cement grains. The geometric clustering simulation revealed a higher achievable dispersion for microfine cement than for Type I/II cement. Scanning electron microscopy (SEM) was used to quantify the dispersion of CNFs among Type I/II and microfine cement grains. SEM image analysis indicated excessive CNF clumping among Type I/II cement grains, while the dispersion of hybrid microfine cement mortar continued to improve as the concentration of CNFs increased up to 5% by mass of cement. Mortar cube elastic stiffness and mortar prism flexure tests revealed that high concentrations of CNFs had detrimental effects in hybrid Type I/II cement mortar, whereas similar concentrations of CNFs had negligible or beneficial effects in hybrid microfine cement mortar.

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Carbon Nanofibers Reinforced Ceramic Matrix Composites

Cited by 15 publications

References 54 publications

Tribological and electrical properties of ceramic matrix composites with carbon nanotubes

Tribological and electrical properties of ceramic matrix composites with carbon nanotubes

Influence of Graphene and Graphene Oxide on Properties of Spark Plasma Sintered Si3N4 Ceramic Matrix

Dispersion of High Concentrations of Carbon Nanofibers in Portland Cement Mortars

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