Measurement of interfacial shear strength in single wall carbon nanotubes reinforced composite using Raman spectroscopy

2010 ◽  
Vol 107 (4) ◽  
pp. 043501 ◽  
Author(s):  
Debdulal Roy ◽  
Sanjib Bhattacharyya ◽  
A. Rachamim ◽  
A. Plati ◽  
Marie-Louise Saboungi
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Shear Strength ◽  
Interfacial Shear Strength ◽  
Interfacial Shear ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Reinforced Composite

In Situ Atomic Force Microscopy Tip-Induced Deformations and Raman Spectroscopy Characterization of Single-Wall Carbon Nanotubes

Nano Letters ◽  
2012 ◽  
Vol 12 (8) ◽  
pp. 4110-4116 ◽  
Author(s):  
P. T. Araujo ◽  
N. M. Barbosa Neto ◽  
H. Chacham ◽  
S. S. Carara ◽  
J. S. Soares ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Atomic Force Microscopy ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Force Microscopy ◽  
Atomic Force

scholarly journals Advanced Models for Modulus and Strength of Carbon-Nanotube-Filled Polymer Systems Assuming the Networks of Carbon Nanotubes and Interphase Section

Mathematics ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 990
Author(s):  
Yasser Zare ◽  
Kyongyop Rhee
Keyword(s):  
Carbon Nanotubes ◽  
Shear Strength ◽  
Carbon Nanotube ◽  
Interfacial Shear Strength ◽  
Tensile Modulus ◽  
Interfacial Shear ◽  
Filled Polymer ◽  
Polymer Systems

This study focuses on the simultaneous stiffening and percolating characteristics of the interphase section in polymer carbon nanotubes (CNTs) systems (PCNTs) using two advanced models of tensile modulus and strength. The interphase, as a third part around the nanoparticles, influences the mechanical features of such systems. The forecasts agree well with the tentative results, thus validating the advanced models. A CNT radius of >40 nm and CNT length of <5 μm marginally improve the modulus by 70%, while the highest modulus development of 350% is achieved with the thinnest nanoparticles. Furthermore, the highest improvement in nanocomposite’s strength (350%) is achieved with the CNT length of 12 μm and interfacial shear strength of 8 MPa. Generally, the highest ranges of the CNT length, interphase thickness, interphase modulus and interfacial shear strength lead to the most desirable mechanical features.

Enhanced yield strength in iron nanocomposite with in situ grown single-wall carbon nanotubes

2006 ◽  
Vol 21 (2) ◽  
pp. 522-528 ◽  
Author(s):  
A. Goyal ◽  
D.A. Wiegand ◽  
F.J. Owens ◽  
Z. Iqbal
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Yield Strength ◽  
Vapor Deposition ◽  
Single Wall Carbon Nanotubes ◽  
Iron Matrix ◽  
Single Wall Carbon ◽  
X Ray ◽  
Micro Raman Spectroscopy

The yield strength of iron-carbon nanotube composites fabricated by in situ chemical vapor deposition of 2.2 vol% single-wall carbon nanotubes (SWNTs) inside an iron matrix showed substantial enhancement up to 45%, relative to that of similarly treated pure iron samples without carbon nanotubes of the same piece density. The work hardening coefficient and the Vickers hardness coefficient also significantly increased in these composites relative to the reference samples. X-ray diffraction together with energy dispersive x-ray measurements and micro-Raman spectroscopy indicated no concomitant formation of carbides and very little amorphous carbon during the vapor deposition process. Micro-Raman spectroscopy and scanning and transmission electron microscopy showed spectral signatures and images, respectively, indicating the formation and dispersion of SWNTs within the cavities of the iron matrix. It is suggested that the increased strength of the nanocomposites was due to the mechanical support provided to these cavities by the extremely strong SWNTs.

Formation and Raman spectroscopy of single wall carbon nanotubes synthesized by CO2 continuous laser vaporization

2001 ◽  
Vol 62 (11) ◽  
pp. 2007-2010 ◽  
Author(s):  
H. Zhang ◽  
K. Chen ◽  
Y. He ◽  
Y. Zhu ◽  
Y. Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Laser Vaporization ◽  
Single Wall Carbon Nanotubes ◽  
Continuous Laser ◽  
Single Wall Carbon

Electrochemical gating of individual single-wall carbon nanotubes observed by electron transport measurements and resonant Raman spectroscopy

2004 ◽  
Vol 84 (12) ◽  
pp. 2052-2054 ◽  
Author(s):  
S. B. Cronin ◽  
R. Barnett ◽  
M. Tinkham ◽  
S. G. Chou ◽  
O. Rabin ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Electron Transport ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Transport Measurements ◽  
Resonant Raman ◽  
Electrochemical Gating

Charge Transfer Dynamics in Single-Wall Carbon Nanotubes Mat: In Situ Raman Spectroscopy

2003 ◽  
Vol 785 ◽  
Author(s):  
S. Gupta ◽  
M. Hughes ◽  
A.H. Windle ◽  
J. Robertson
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Charge Transfer ◽  
Bond Length ◽  
Mechanical Response ◽  
Radial Breathing Mode ◽  
Single Wall Carbon Nanotubes ◽  
In Situ Raman Spectroscopy ◽  
Single Wall Carbon

ABSTRACTCarbon nanotubes-based actuator has been investigated using in situ Raman spectroscopy in order to understand the actuation mechanism and to determine associated parameters. We built an actuator from a sheet of single-wall carbon nanotubes (SWNT mat) and studied in several alkali metal (Li, Na, and K) and alkaline earth (Ca) halide solutions. Since Raman can detect changes in C-C bond length: the radial breathing mode (RBM) at ∼190 cm-1 varies inversely with the nanotube diameter and the G band at ∼1590 cm-1 varies with the axial bond length, the variation of bonding was monitored with potential. In addition, the intensities of both the modes vary with either emptying/depleting or filling of the bonding and antibonding states due to electrochemical charge injection. We discuss the variation of intensity/frequency providing valuable information on the dynamics of charge transfer on the SWNT mat surface. We found the in-plane microscopic strain (∼ -0.25%) and the charge transfer per carbon atom (fc ∼ -0.005) as an upper bound for the electrolytes used. It is demonstrated that though the present analyses does comply with the proposition made earlier, but the quantitative estimates of the associated parameters are significantly lower if compared with those of reported values for carbon nanotubes. Moreover, the extent of variation (i.e. coupled electro-chemo-mechanical response) does depend upon the type of counter-ion used. The cyclic voltammetry (CV) is also described briefly.

Surface-enhanced resonant Raman spectroscopy of single-wall carbon nanotubes adsorbed on silver and gold surfaces

2000 ◽  
Vol 61 (19) ◽  
pp. 13202-13211 ◽  
Author(s):  
P. Corio ◽  
S. D. M. Brown ◽  
A. Marucci ◽  
M. A. Pimenta ◽  
K. Kneipp ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Single Wall Carbon Nanotubes ◽  
Gold Surfaces ◽  
Single Wall Carbon ◽  
Surface Enhanced ◽  
Resonant Raman
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