Materials made of carbon nanotubes. The carbon nanotube forest

Rakov, E. G.

doi:10.1070/rc2013v082n06abeh004340

Cited by 44 publications

(15 citation statements)

References 629 publications

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“…Carbon nanotubes (CNTs) attract each other due to relatively weak van der Waals interactions and can create molecular crystals or CNT bundles [1][2][3]. CNT forests can be produced by various techniques [4][5][6][7]. They have excellent mechanical properties since individual CNTs possess very high tensile strength in the range from 11 to 63 GPa, tensile Young's modulus of 1.0 to 1.3 TPa, and high ultimate fracture strain of about 10% [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Elastic Damper Based on the Carbon Nanotube Bundle

Rysaeva¹,

Korznikova²,

Мурзаев³

et al. 2020

FU Mech Eng

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Mechanical response of the carbon nanotube bundle to uniaxial and biaxial lateral compression followed by unloading is modeled under plane strain conditions. The chain model with a reduced number of degrees of freedom is employed with high efficiency. During loading, two critical values of strain are detected. Firstly, period doubling is observed as a result of the second order phase transition, and at higher compressive strain, the first order phase transition takes place when carbon nanotubes start to collapse. The loading-unloading stress-strain curves exhibit a hysteresis loop and, upon unloading, the structure returns to its initial form with no residual strain. This behavior of the nanotube bundle can be employed for the design of an elastic damper.

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Section: Introductionmentioning

confidence: 99%

Elastic Damper Based on the Carbon Nanotube Bundle

Rysaeva¹,

Korznikova²,

Мурзаев³

et al. 2020

FU Mech Eng

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“…In addition, they are flexible, have low weight, high thermal and electrical conductivity, which makes them very promising for a number of applications [13][14][15][16]. CNT forests are produced by means of various experimental techniques [17][18][19][20][21] and used for making super-strong ropes [7,22], fibers [23][24][25][26][27], fillers for composite materials [28][29][30], solid lubricants [30][31][32][33], etc.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Response of Carbon Nanotube Bundle to Lateral Compression

et al. 2020

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Structure evolution and mechanical response of the carbon nanotube (CNT) bundle under lateral biaxial compression is investigated in plane strain conditions using the chain model. In this model, tensile and bending rigidity of CTN walls, and the van der Waals interactions between them are taken into account. Initially the bundle in cross section is a triangular lattice of circular zigzag CNTs. Under increasing strain control compression, several structure transformations are observed. Firstly, the second-order phase transition leads to the crystalline structure with doubled translational cell. Then the first-order phase transition takes place with the appearance of collapsed CNTs. Further compression results in increase of the fraction of collapsed CNTs at nearly constant compressive stress and eventually all CNTs collapse. It is found that the potential energy of the CNT bundle during deformation changes mainly due to bending of CNT walls, while the contribution from the walls tension-compression and from the van der Waals energies is considerably smaller.

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“…CNTs are commonly prepared using a catalyst (typically prepared from Group IV transition metals) [4], which, prior to the deposition of CNTs, is depos ited onto a support and forms local active sites on the support surface or can be introduced into the active synthesis zone directly during deposition. Originally, the CNTs were grown by the catalyzed pyrolytic depo sition of nanostructures from a hydrocarbon (carbon containing) gas; this growth process is similar to chemical vapor deposition (CVD) and referred to as precipitated catalyst chemical vapor deposition (PC CVD).…”

Section: Methodsmentioning

confidence: 99%

“…Typically, in VANT arrays, the CNTs are not strictly linearly aligned; they have a sinuous shape and a cer tain degree of imperfection and can greatly differ in length and diameter; therefore, the thermal conduc tivity coefficient and thermal resistance values can significantly vary [4]. In addition, the individual char acteristics of individual CNTs in an array are different.…”

Section: Introductionmentioning

confidence: 99%

On the synthesis and thermal conductivity of nanocomposites with multiwalled carbon nanotubes

Vorobyeva

Makarenko

Makunin

et al. 2015

J. Synch. Investig.

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A method for growing arrays of vertically aligned carbon nanotubes and synthesizing a polymer composite based on vertically aligned, horizontally aligned, and unaligned carbon nanotubes is described. The thermal conductivity of polymer composites is studied by the laser flash method. It is found that filling of the polymer with vertically aligned carbon nanotubes leads to an increase in the thermal conductivity coef ficient of the epoxy resin by a factor of 10 and more.

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Materials made of carbon nanotubes. The carbon nanotube forest

Cited by 44 publications

References 629 publications

Elastic Damper Based on the Carbon Nanotube Bundle

Elastic Damper Based on the Carbon Nanotube Bundle

Mechanical Response of Carbon Nanotube Bundle to Lateral Compression

On the synthesis and thermal conductivity of nanocomposites with multiwalled carbon nanotubes

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