Effect of single-walled carbon nanotubes on thermal and electrical properties of silicon nitride processed using spark plasma sintering

2011 ◽  
Vol 31 (3) ◽  
pp. 391-400 ◽  
Author(s):  
Erica L. Corral ◽  
Hsin Wang ◽  
Javier Garay ◽  
Zuhair Munir ◽  
Enrique V. Barrera
2005 ◽  
Vol 20 (10) ◽  
pp. 2609-2612 ◽  
Author(s):  
Go Yamamoto ◽  
Yoshinori Sato ◽  
Toru Takahashi ◽  
Mamoru Omori ◽  
Toshiyuki Hashida ◽  
...  

Single-walled carbon nanotubes (SWCNTs) were successfully solidified without any additives by hot-pressing and spark plasma sintering (SPS). The elastic modulus and fracture strength of the SWCNT solid prepared by the SPS method were about three and two times higher than that of the hot-pressed SWCNT solid prepared under the same processing condition. The enhancement of the mechanical properties of the SPS specimen may be due to the formation of comparatively stronger bond between SWCNTs, which is possibly brought about by the spark plasma generated in the SPS process.


Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1150
Author(s):  
Nicolás A. Ulloa-Castillo ◽  
Roberto Hernández-Maya ◽  
Jorge Islas-Urbano ◽  
Oscar Martínez-Romero ◽  
Emmanuel Segura-Cárdenas ◽  
...  

This article focuses on exploring how the electrical conductivity and densification properties of metallic samples made from aluminum (Al) powders reinforced with 0.5 wt % concentration of multi-walled carbon nanotubes (MWCNTs) and consolidated through spark plasma sintering (SPS) process are affected by the carbon nanotubes dispersion and the Al particles morphology. Experimental characterization tests performed by scanning electron microscopy (SEM) and by energy dispersive spectroscopy (EDS) show that the MWCNTs were uniformly ball-milled and dispersed in the Al surface particles, and undesirable phases were not observed in X-ray diffraction measurements. Furthermore, high densification parts and an improvement of about 40% in the electrical conductivity values were confirmed via experimental tests performed on the produced sintered samples. These results elucidate that modifying the powder morphology using the ball-milling technique to bond carbon nanotubes into the Al surface particles aids the ability to obtain highly dense parts with increasing electrical conductivity properties.


RSC Advances ◽  
2018 ◽  
Vol 8 (20) ◽  
pp. 11186-11190 ◽  
Author(s):  
H. Jintoku ◽  
Y. Matsuzawa ◽  
M. Yoshida

The light-induced switching of the optical and electrical properties of single-walled carbon nanotubes hybrid films with photoresponsive dispersant.


Sign in / Sign up

Export Citation Format

Share Document