Milling and dispersion of multi-walled carbon nanotubes in texanol

Darsono, Nono; Yoon, Dang-Hyok; Kim, Jaemyung

doi:10.1016/j.apsusc.2007.11.028

Cited by 59 publications

(32 citation statements)

References 25 publications

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“…By applying high energetic mixing processes such as ball milling, better dispersions can be achieved. Of course these procedures must be handled with care and optimised very carefully in order to keep the properties of the CNXs since in some cases a damage/modification of the CNX materials due to the mixing/milling procedure was reported [5].…”

Section: Mechanical Dispersionmentioning

confidence: 99%

Potential and challenges of metal-matrix-composites reinforced with carbon nanofibers and carbon nanotubes

Neubauer¹,

Kitzmantel²,

Hulman³

et al. 2010

Composites Science and Technology

183

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To cite this version:E. Neubauer, M. Kitzmantel, M. Hulman, P. Angerer. Potential and challenges of metal-matrixcomposites reinforced with carbon nanofibers and carbon nanotubes. Composites Science and Technology, Elsevier, 2010, 70 (16) This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractWith a continuous improvement of the production techniques for carbon nanofibers and carbon nanotubes along with an improvement of the available qualities of the materials, these reinforcements have been introduced into polymers, ceramics and metals. While in the field of polymers first success stories have been published on carbon nanofiller reinforcements, up to now metals containing these types of nanofillers are still a topic of intensive research. Basically a similar situation were found in those days, when micron sized carbon fibers came on the market. Today many applications of carbon fiber reinforced composites are existing, while metals reinforced with conventional carbon fibers are still only found in niche applications.Several reasons can be identified, why the introduction of carbon based nanofillers (nanofibers/nanotubes) into metallic matrices is a difficult task. Nevertheless it is worthwhile to carry out systematic studies in this field due to the excellent and promising thermal, electrical, mechanical or tribological properties of the nanofillers.This paper gives an overview and summarises the activities related to carbon nanotubes and nanofibers used as a reinforcement in metallic matrix materials. The main challenges and the potential with respect to material properties will be discussed. 1) IntroductionWithin the past years there was a significant increase on publications related to carbon nanofiber (CNF) and carbon nanotube (CNT) reinforced composites. Most of these publications are related to polymer based composites. Up to now there has been a limited number of publications and especially of success stories, where CNTs or CNFs have been successfully introduced in metallic or ceramic matrix materials resulting in significant improvements of the properties of the matrix material. This situation is similar to those several decades ago, when micron sized carbon fibers were already used in commercial applications in polymers while the successful introduction of carbon fibers in metal matrix composites took several additional years before showing first success. The reason why polymer based matrix composites resulted in a faster success compared to metal based ones, is of course related to the fact that a polymer matrix is in general characterised by a rather poor thermal, mechanical, electrical or...

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Section: Mechanical Dispersionmentioning

confidence: 99%

Potential and challenges of metal-matrix-composites reinforced with carbon nanofibers and carbon nanotubes

Neubauer¹,

Kitzmantel²,

Hulman³

et al. 2010

Composites Science and Technology

183

View full text Add to dashboard Cite

show abstract

“…There are also difficulties associated with poor affinity and a large thermal expansion mismatch between Cu-C. These factors can reduce performance of the composites later in operation (Ref 11,12,14).…”

Section: Discussionmentioning

confidence: 99%

“…However, driven by the Wan der Waals forces, graphene nanoplatelets are prone to agglomerate during the fabrication process. As agglomeration and structural destruction of carbon reinforcement often take place during ball-milling process or conventional powder metallurgy, some novel methods are developed for the manufacturing graphene on powders (Ref 11,12).…”

Section: Introductionmentioning

confidence: 99%

Thermophysical Properties of Cu-Matrix Composites Manufactured Using Cu Powder Coated with Graphene

Babul

Baranowski

Sobczak

et al. 2016

J. of Materi Eng and Perform

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Compact Cu matrix composites reinforced with graphene were prepared by thermochemical processes and cold isostatic pressing. Thermophysical properties were investigated using laser flash analysis, differential scanning calorimetry, and dilatometry. From the results of the measurements, it follows that within the entire investigated temperature range, both the thermal diffusivity and the calculated values therefrom of the thermal conductivity of copper-graphene composites change according to the temperature changes. Above 500°C, abnormal decrease of the thermal diffusivity was registered for sample prepared from pure copper powder. In this case, the elevated temperature of test could cause sintering of copper particles, which were not coated by graphene. The as-received composites had higher thermal diffusivity and the thermal conductivity at the room temperature in comparison to the material obtained by standard pressing of pure copper powder. However, the production methods of some samples could cause their partial sintering. Based on the study, it could not be concluded that graphene only has impacts on the thermophysical properties.

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“…For physical modification, surfactant micelles, aromatic compounds, and synthetic and biological polymers are applied as solubilizers to disperse CNTs in liquid media [14]. Besides, some other methods such as ball milling [17][18][19] and ultrasonication [20,21] are also used to disperse CNTs.…”

Section: Introductionmentioning

confidence: 99%

Effects of Plasma and Acid Treatment on the Dispersion of Carbon Nanotubes in Liquids

Jiang

Zhu

Wang

et al. 2011

Plasma Chem Plasma Process

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Carbon nanotubes (CNTs) with different diameters were treated by plasma and acid. The CNTs were dispersed in water and the light transmittance of the CNTs dispersoid (the mixture of CNTs and water) was measured to characterize the dispersibility of CNTs. With the light transmittance of water as the baseline, relative transmittance (RT) of CNTs dispersoid was calculated and the curves of RT varying with time were fitted with a function. The effects of CNTs diameter, acid treatment and plasma treatment on the dispersion of CNTs in water were studied according to the fitting results. It could be concluded that the dispersibility of the CNTs with bigger diameters was better. Plasma treatment could improve the dispersibility of CNTs and if the CNTs were acid-treated, plasma treatment could improve their dispersibility further.

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Milling and dispersion of multi-walled carbon nanotubes in texanol

Cited by 59 publications

References 25 publications

Potential and challenges of metal-matrix-composites reinforced with carbon nanofibers and carbon nanotubes

Potential and challenges of metal-matrix-composites reinforced with carbon nanofibers and carbon nanotubes

Thermophysical Properties of Cu-Matrix Composites Manufactured Using Cu Powder Coated with Graphene

Effects of Plasma and Acid Treatment on the Dispersion of Carbon Nanotubes in Liquids

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