Properties and potential applications of carbon microcoils/nanocoils

Motojima, Seiji; Chen, X.; Yang, Shihao; Hasegawa, M.

doi:10.1016/j.diamond.2004.06.020

Cited by 79 publications

(65 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Coiled carbon nanotubes (CCNTs) were first predicted to exist in the early 1990s by Dunlap [4] and Ihara et al [5][6][7] and experimentally observed in 1994 by Zhang et al [8]. CCNTs have been receiving increasing interest because of their additional capability to serve as nanoscale mechanical springs [9] and electrical inductors [10], and for their potential applications in composites [11].…”

mentioning

confidence: 99%

Entanglement and the Nonlinear Elastic Behavior of Forests of Coiled Carbon Nanotubes

et al. 2008

View full text Add to dashboard Cite

Helical or coiled nanostructures have been objects of intense experimental and theoretical studies due to their special electronic and mechanical properties. Recently, it was experimentally reported that the dynamical response of a foamlike forest of coiled carbon nanotubes under mechanical impact exhibits a nonlinear, non-Hertzian behavior, with no trace of plastic deformation. The physical origin of this unusual behavior is not yet fully understood. In this Letter, based on analytical models, we show that the entanglement among neighboring coils in the superior part of the forest surface must be taken into account for a full description of the strongly nonlinear behavior of the impact response of a drop ball onto a forest of coiled carbon nanotubes.

show abstract

mentioning

confidence: 99%

Entanglement and the Nonlinear Elastic Behavior of Forests of Coiled Carbon Nanotubes

et al. 2008

View full text Add to dashboard Cite

show abstract

“…Their results, presented in Figure 22, indicate the changes of L, C and R with applied load [7]. The C and R increased and L decreased when load was applied [59]. Furthermore, the changes of L, C and R for composites with CMCs oriented in one direction were found to be much more sensitive than composites with randomly oriented CMCs [7].…”

Section: Tactile Sensormentioning

confidence: 85%

“…Motojima et al [59] and Yang et al [7] investigated the responses of inductance (L), capacitance (C) and resistance (R) for double helical CMC/polysilicone composites under different loads. Their results, presented in Figure 22, indicate the changes of L, C and R with applied load [7].…”

Section: Tactile Sensormentioning

confidence: 99%

Growth and Properties of Carbon Microcoils and Nanocoils

2014

View full text Add to dashboard Cite

Abstract:Various types of coiled carbon filaments have been synthesized using chemical vapor deposition and other methods. These carbon filaments exhibit unique electrical and mechanical properties due to their versatile shapes and structures. To form coiled shapes, different types of catalyst compositions and reactive gases have been explored. Generally, coiled carbon filaments are classified by coil diameter and shape (e.g., microcoil and nanocoil). In this review, coiled carbon filaments are classified into three growth mechanism categories: (1) bidirectional double helical growth; (2) bidirectional twisted growth; and (3) tip single helical or twisted growth. Next, their synthesis methods and hypothetical growth mechanisms are discussed. Then, their electrical and mechanical properties are listed. Finally, potential applications and uses of coiled carbon filament are mentioned.

show abstract

“…13 Additionally, the observed nano-coils/-helices ͑NC/NH͒ could be pertinent for observing interesting variants of electronic architecture. It was suggested, interestingly, that a coil could correspond to a sequence of junctions with alternating metallic and semiconducting character, 14 adding to the possibilities of observing interesting electronic behavior 15 in nonlinear nanostructures.…”

Section: Introductionmentioning

confidence: 99%

A plausible mechanism for the evolution of helical forms in nanostructure growth

Bandaru¹,

Daraio²,

Yang³

et al. 2007

Journal of Applied Physics

View full text Add to dashboard Cite

The observation of helices and coils in nano-tube/-fiber ͑NT/NF͒ syntheses is explained on the basis of the interactions between specific catalyst particles and the growing nanostructure. In addition to rationalizing nonlinear structure, the proposed model probes the interplay between thermodynamic quantities and predicts conditions for optimal growth. Experimental results on the effect of indium catalyst on affecting the coil pitch in NTs and NFs are presented.

show abstract

Properties and potential applications of carbon microcoils/nanocoils

Cited by 79 publications

References 16 publications

Entanglement and the Nonlinear Elastic Behavior of Forests of Coiled Carbon Nanotubes

Entanglement and the Nonlinear Elastic Behavior of Forests of Coiled Carbon Nanotubes

Growth and Properties of Carbon Microcoils and Nanocoils

A plausible mechanism for the evolution of helical forms in nanostructure growth

Contact Info

Product

Resources

About