Carbon Nanotubes for the Synthesis of Ceramic Matrix Composites (Cleaning, Dispersion, Surface Modification) (Review)

2019 ◽  
Vol 60 (1) ◽  
pp. 92-100 ◽  
Author(s):  
A. V. Belyakov
Author(s):  
A. V. Belyakov

In connection with the continuing decrease in the cost of carbon nanotubes (CNT) and the promising properties of ceramic-matrix composites (CMC) reinforced with CNTs, their wide application in industry is on the agenda. It is necessary to create cheap technologies for the production of CNTs to do this. The review of the technological stages of the industrial production of complex-shaped products from KMK reinforced CNTs is given: the cleaning of raw materials after their production, the dispersion of aggregates and some methods for modifying their surface. Ref. 93. Tab. 3.


Crystals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 457
Author(s):  
Kar Fei Chan ◽  
Mohd Hafiz Mohd Zaid ◽  
Md Shuhazlly Mamat ◽  
Shahira Liza ◽  
Masaki Tanemura ◽  
...  

Ceramic matrix composites (CMCs) are well-established composites applied on commercial, laboratory, and even industrial scales, including pottery for decoration, glass–ceramics-based light-emitting diodes (LEDs), commercial cooking utensils, high-temperature laboratory instruments, industrial catalytic reactors, and engine turbine blades. Despite the extensive applications of CMCs, researchers had to deal with their brittleness, low electrical conductivity, and low thermal properties. The use of carbon nanotubes (CNTs) as reinforcement is an effective and efficient method to tailor the ceramic structure at the nanoscale, which provides considerable practicability in the fabrication of highly functional CMC materials. This article provides a comprehensive review of CNTs-reinforced CMC materials (CNTs-CMCs). We critically examined the notable challenges during the synthesis of CNTs-CMCs. Five CNT dispersion processes were elucidated with a comparative study of the established research for the homogeneity distribution in the CMCs and the enhanced properties. We also discussed the effect of densification techniques on the properties of CNTs-CMCs. Additionally, we synopsized the outstanding microstructural and functional properties of CNTs in the CNTs-CMCs, namely stimulated ceramic crystallization, high thermal conductivity, bandgap reduction, and improved mechanical toughness. We also addressed the fundamental insights for the future technological maturation and advancement of CNTs-CMCs.


2008 ◽  
Vol 255 (5) ◽  
pp. 2425-2432 ◽  
Author(s):  
S. Costil ◽  
S. Lukat ◽  
C. Langlade ◽  
C. Coddet

2009 ◽  
Vol 44 (8) ◽  
pp. 1934-1951 ◽  
Author(s):  
Johann Cho ◽  
Aldo R. Boccaccini ◽  
Milo S. P. Shaffer

Processes ◽  
2020 ◽  
Vol 8 (8) ◽  
pp. 1004
Author(s):  
Valerii P. Meshalkin ◽  
Alexey V. Belyakov

Ceramic matrix composites reinforced with carbon nanotubes are becoming increasingly popular in industry due to their astonishing mechanical properties and taking into account the fact that advanced production technologies make carbon nanotubes increasingly affordable. In the present paper, the most convenient contemporary methods used for the compaction of molding masses composed of either technical ceramics or ceramic matrix composites reinforced with carbon nanotubes are surveyed. This stage that precedes debinding and sintering plays the key role in getting pore-free equal-density ceramics at the scale of mass production. The methods include: compaction in sealed and collector molds, cold isostatic and quasi-isostatic compaction; dynamic compaction methods, such as magnetic pulse, vibration, and ultrasonic compaction; extrusion, stamping, and injection; casting from aqueous and non-aqueous slips; tape and gel casting. Capabilities of mold-free approaches to produce precisely shaped ceramic bodies are also critically analyzed, including green ceramic machining and additive manufacturing technologies.


2016 ◽  
Vol 56 (6) ◽  
pp. 636-640 ◽  
Author(s):  
N. A. Fedosova ◽  
É. M. Kol’tsova ◽  
N. A. Popova ◽  
E. V. Zharikov ◽  
E. S. Lukin

2014 ◽  
Vol 614 ◽  
pp. 148-150 ◽  
Author(s):  
Orsolya Tapasztó ◽  
Hartmut Lemmel ◽  
Márton Markó ◽  
Katalin Balázsi ◽  
Csaba Balázsi ◽  
...  

2011 ◽  
Vol 335-336 ◽  
pp. 255-259
Author(s):  
Xi Wang Wu ◽  
Jian Zhong Xiao ◽  
Feng Xia ◽  
Yong Gang Hu ◽  
Zhou Peng

The key problem to prepare carbon nanotubes (CNTs) reinforced ceramic matrix composites is how to break up massive agglomerates of CNTs and disperse uniformly CNTs. We obtain the CNTs-Al2O3composite powder by shear treatment on melted CNTs-Al2O3-agents mixture. Microstructure observations of CNTs-Al2O3composite powder show that CNTs can be dispersed uniformly by shearing process. The rheological results also affirm the conclusion. According to the rheological theory, we build the ideal dispersion model of CNTs-Al2O3suspension system and discuss the dispersion mechanism.


2011 ◽  
Vol 511 (4-6) ◽  
pp. 340-343 ◽  
Author(s):  
Orsolya Tapasztó ◽  
Levente Tapasztó ◽  
Márton Markó ◽  
Frank Kern ◽  
Rainer Gadow ◽  
...  

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