Finite element modelling of the mechanics of discrete carbon nanotubes filled with ZnS and comparison with experimental observations

Monteiro, André Oliveirinha; Costa, Pedro M. F. J.; Cachim, Paulo

doi:10.1007/s10853-013-7745-3

Cited by 2 publications

(3 citation statements)

References 17 publications

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“…These in situ TEM investigations were recently complemented by a fi nite element analysis study that reproduced the differentiated buckling behavior in the fi lled versus empty states of the MWCNTs (Fig. 7.10 ) [ 112 ].…”

Section: Hybrid Carbon Nanotubesmentioning

confidence: 99%

In Situ TEM of Carbon Nanotubes

Costa

Ferreira

2015

Advanced Transmission Electron Microscopy

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The recognition that in situ TEM can be used as a powerful tool for the dynamic characterization of materials has been widely established. However, with the advent of CCD and direct detection cameras, and the development in electron optics, stage design and fabrication, and recording media, scientists and engineers are now being able to further enhance the capabilities of previous TEM analysis through novel in situ experiments, by observing and recording the behavior of materials in different conditions, such as heating, cooling, stress, light, electric fi elds, as well as liquid and gas environments. This technique has been critical in understanding and characterizing the relationship between properties and the nano/microstructure of materials and has been important in validating the information contained in previous single static TEM experiments with a series of dynamic sequential images. In addition, the emerging development of nanomaterials, a fi eld which has become one of the most promising fi elds of science and technology today, has brought an exciting resurgence of interest in in situ TEM, as the previous issue of thinning bulk specimens is no longer present.Currently, the development of aberration-corrected TEM/STEMs, direct detection cameras, and the miniaturization of specimen holders have created new opportunities for in situ TEM. In the case of aberration-corrected TEM/STEMs, the

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Section: Hybrid Carbon Nanotubesmentioning

confidence: 99%

In Situ TEM of Carbon Nanotubes

Costa

Ferreira

2015

Advanced Transmission Electron Microscopy

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“…Recently, we have been studying a relatively complex system which is composed of a ternary alloy guest, Ga-doped ZnS, confined in turbostratic MWCNT, for electrically-activated nanodelivery [8,10]. Besides characterising its structure and chemistry, we have also analysed the reactivity [11], thermal stability [12,13] and mechanical behaviour [14][15][16][17]. Note that this work was carried out at the discrete nanostructure level providing therefore a more detailed view of the material's behaviour than the averaged responses obtained from bulk samples [18].…”

Section: Introductionmentioning

confidence: 99%

“…Accordingly, we have demonstrated how the stiffness of the host MWCNT is altered by the inclusion of the guest II-VI semiconductor [19]. As a next logical step, we developed a computational model that helps understanding the mechanics of this hybrid material [15]. In the first stage, we adopted an approach based on finite elements as it allowed handling the correct dimensions of the (doped-)ZnS@MWCNT system (here, @ means "encapsulated in").…”

Section: Introductionmentioning

confidence: 99%

Buckling of ZnS-filled single-walled carbon nanotubes – The influence of aspect ratio

Monteiro

Costa

Cachim

et al. 2014

Carbon

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show abstract

Finite element modelling of the mechanics of discrete carbon nanotubes filled with ZnS and comparison with experimental observations

Cited by 2 publications

References 17 publications

In Situ TEM of Carbon Nanotubes

In Situ TEM of Carbon Nanotubes

Buckling of ZnS-filled single-walled carbon nanotubes – The influence of aspect ratio

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