Dielectric Constants of Multiwall Carbon Nanotubes from Direct Current to Microwave Frequencies

2009 ◽  
Vol 9 (3) ◽  
pp. 1734-1740 ◽  
Author(s):  
Y. C. Wang ◽  
J. T. Lue ◽  
K. F. Pauw
Keyword(s):  
Carbon Nanotubes ◽  
Direct Current ◽  
Multiwall Carbon Nanotubes ◽  
Dielectric Constants ◽  
Microwave Frequencies ◽  
Multiwall Carbon

Influence of Ultrasonic Treatment on Electromagnetic Characteristics of Composites Based on Multiwall Carbon Nanotubes at Microwave Frequencies

2016 ◽  
Vol 683 ◽  
pp. 65-70 ◽  
Author(s):  
Olga Dotsenko ◽  
Anastasia Kachusova
Keyword(s):  
Carbon Nanotubes ◽  
Dielectric Properties ◽  
Multiwalled Carbon Nanotubes ◽  
Ultrasonic Treatment ◽  
Multiwall Carbon Nanotubes ◽  
Multiwalled Carbon ◽  
Microwave Frequencies ◽  
Absorbing Materials ◽  
Electromagnetic Characteristics ◽  
Multiwall Carbon

There is a growing demand for light and radar absorbing materials in both commercial and military purposes. In this paper, microwave properties of polimer based composites containing multiwalled carbon nanotubes used as fillers have been analyzed. The multiwall carbon nanotubes used in the composite were about 9.4 nm in diameter. The results show that the ultrasonic treatment modifies the dielectric properties of the composite. Both real and imaginary permittivity of composites is 2 times more than ordinary example after sonicating for 3 minutes.

Boehmite Nanofibers as a Dispersant for Nanotubes in an Aqueous Sol

2018 ◽  
Author(s):  
Gen Hayase
Keyword(s):  
Carbon Nanotubes ◽  
Aspect Ratio ◽  
Aqueous Solutions ◽  
High Aspect Ratio ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon ◽  
Nanotube Films

By exploiting the dispersibility and rigidity of boehmite nanofibers (BNFs) with a high aspect ratio of 4 nm in diameter and several micrometers in length, multiwall-carbon nanotubes (MWCNTs) were successfully dispersed in aqueous solutions. In these sols, the MWCNTs were dispersed at a ratio of about 5–8% relative to BNFs. Self-standing BNF–nanotube films were also obtained by filtering these dispersions and showing their functionality. These films can be expected to be applied to sensing materials.

scholarly journals Comparative study of using Water-Based mud containing Multiwall Carbon Nanotubes versus Oil-Based mud in HPHT fields

2016 ◽  
Vol 25 (4) ◽  
pp. 459-464 ◽  
Author(s):  
M.I. Abduo ◽  
A.S. Dahab ◽  
Hesham Abuseda ◽  
Abdulaziz M. AbdulAziz ◽  
M.S. Elhossieny
Keyword(s):  
Carbon Nanotubes ◽  
Comparative Study ◽  
Multiwall Carbon Nanotubes ◽  
Water Based ◽  
Multiwall Carbon
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