Ab initio studies of elastic properties and electronic structures of C and BN nanotubes

Peng, Yong-jin; Li-Yun, None Zhang; Jin, Qinhan; Li, Baohui; Ding, Datong

doi:10.1016/j.physe.2006.01.004

Cited by 30 publications

(14 citation statements)

References 23 publications

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“…In total 14 samples were analyzed including 10 samples measured by standard tensile loading and 4 samples measured by pullout. The measured Young’s modulus ranges from 725 to 1343 GPa with an average value of 926 GPa, which agrees well with the theoretical predictions and previous experimental measurements 2–8. As stated above, only tensile breaking strength of the samples which broke in their middle sections under tension and that measured through shells pullout can be regarded as the true tensile strength of multi‐walled BNNTs.…”

Section: Summary Of All Measured Multi‐walled Bnnt Samplessupporting

confidence: 89%

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Tensile Tests on Individual Multi‐Walled Boron Nitride Nanotubes

Wei¹,

Wang²,

Bando³

et al. 2010

Advanced Materials

159

107

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Tensile loading and pullouts of individual multi‐walled BNNTs were studied for the first time by in‐situ tests in the integrated HRTEM‐AFM setup. Most important mechanical parameters, such as the ultimate tensile strength and strain, maximum sustainable load and the Young’s modulus of tubes, were measured. Under parallel HRTEM observations the measured mechanical parameters were correlated to experimental conditions and tube structures.

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Section: Summary Of All Measured Multi‐walled Bnnt Samplessupporting

confidence: 89%

“…Hernández et al predicted a BNNT elastic modulus of ∼0.9 TPa, which is a bit smaller but comparable to that of CNTs (∼1.2 TPa) 2. Similar elastic modulus was also pointed out by several other groups 3–5. The theoretical predictions agree well with the experimentally measured values 6–8.…”

Section: Summary Of All Measured Multi‐walled Bnnt Samplessupporting

confidence: 74%

Tensile Tests on Individual Multi‐Walled Boron Nitride Nanotubes

Wei¹,

Wang²,

Bando³

et al. 2010

Advanced Materials

159

107

View full text Add to dashboard Cite

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“…The elastic properties of BNNTs have been investigated theoretically in many works. BNNTs possess a Young's modulus ranging from 0.837 to 0.92 TPa, and the yield strength is slightly smaller than that of CNTs. BNNTs possess ultimately high resistance to oxidation in air.…”

Section: Introductionmentioning

confidence: 99%

Electrically insulating polymeric nanocomposites with enhanced thermal conductivity by visible-light curing of epoxy-boron nitride nanotube formulations

et al. 2017

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Epoxy-boron nitride nanotube (BNNT) composites were prepared using visible light through a radical-induced cationic polymerization method activated by camphorquinone. The fully cured films showed an enhancement of glass transition temperature in the presence of the filler. Electrical characterization showed a slight dielectric constant decrease with BNNT content. Finally, thermal conductivity measured using nano-flash analysis showed a linear increase in the thermal conductivity of the materials with increasing BNNT content in the photocurable formulations.

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“…This section is concerned to assess and predict the post-critical buckling loads (PCL) of a truncated conical carbon nanotube (CCNT). First, in order to analyze the CCNT, the following material properties are utilized as [63][64][65][66][67][68][69][70][71][72] It is important to note that the above-mentioned quantities are averaged values and are related to an armchair carbon nanotube in a continuum schema [73][74][75][76][77][78]. As the armchair is a symmetrical nanotube, it is presumed as an isotropic beam.…”

Section: Post-buckling Of Truncated Conical Swcntsmentioning

confidence: 99%

Post-critical buckling of truncated conical carbon nanotubes considering surface effects embedding in a nonlinear Winkler substrate using the Rayleigh-Ritz method

Malikan

Eremeyev

2020

Mater. Res. Express

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This research predicts theoretically post-critical axial buckling behavior of truncated conical carbon nanotubes (CCNTs) with several boundary conditions by assuming a nonlinear Winkler matrix. The post-buckling of CCNTs has been studied based on the Euler-Bernoulli beam model, Hamilton's principle, Lagrangian strains, and nonlocal strain gradient theory. Both stiffness-hardening and stiffness-softening properties of the nanostructure are considered by exerting the second stressgradient and second strain-gradient in the stress and strain fields. Besides small-scale influences, the surface effect is also taken into consideration. The effect of the Winkler foundation is nonlinearly taken into account based on the Taylor expansion. A new admissible function is used in the Rayleigh-Ritz solution technique applicable for buckling and post-buckling of nanotubes and nanobeams. Numerical results and related discussions are compared and reported with those obtained by the literature. The significant results proved that the surface effect and the nonlinear term of the substrate affect the CCNT considerably.

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Ab initio studies of elastic properties and electronic structures of C and BN nanotubes

Cited by 30 publications

References 23 publications

Tensile Tests on Individual Multi‐Walled Boron Nitride Nanotubes

Tensile Tests on Individual Multi‐Walled Boron Nitride Nanotubes

Electrically insulating polymeric nanocomposites with enhanced thermal conductivity by visible-light curing of epoxy-boron nitride nanotube formulations

Post-critical buckling of truncated conical carbon nanotubes considering surface effects embedding in a nonlinear Winkler substrate using the Rayleigh-Ritz method

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