TY - JOUR
T1 - Nitrogen-doped-CNTs/Si3N4 nanocomposites with high electrical conductivity
AU - Belmonte, Manuel
AU - Vega-Díaz, Sofía Magdalena
AU - Morelos-Gómez, Aaron
AU - Miranzo, Pilar
AU - Osendi, M. Isabel
AU - Terrones, Mauricio
N1 - Funding Information:
This work was supported by the Spanish Government under the project MAT2012-32944 , and by the CSIC project I-LINK0119 . M. Terrones thanks JST-Japan for funding the Research Center for Exotic NanoCarbons, under the Japanese Regional Innovation Strategy Program by the Excellence, and the Penn State Center for Nanoscale Science for a seed grant on layered systems. M. Terrones acknowledges the Air Force Office of Scientific Research for the Project MURI: Synthesis and Characterization of 3D Carbon Nanotube Solid Networks Award No.: FA9550-12-1-0035. A. Morelos-Gomez was in part supported by The New Energy and Industrial Technology Development Organization (NEDO) for electrical conductivity analysis.
PY - 2014/5
Y1 - 2014/5
N2 - Novel highly electrically conducting nanocomposites consisting of a silicon nitride (Si3N4) ceramic matrix containing up to 13.6vol.% of nitrogen-doped multi-walled carbon nanotubes (CNx) were fabricated. As-synthesized CNx were treated with hydrogen peroxide in order to efficiently detach/isolate the nanotubes from bundles, then they were mixed with the ceramic powders and fully densified using the spark plasma sintering (SPS) technique. Composites containing 13.6vol.% CNx reached an electrical conductivity of 2174Sm-1 that is the highest value reported hitherto for carbon nanotubes/Si3N4 nanocomposites. The nitrogen doping also favored a strong mechanical interlocking between the nanotubes and the Si3N4 matrix; when compared to the undoped carbon nanotubes. These novel nanocomposites could be used in devices associated to power generation or telecommunications.
AB - Novel highly electrically conducting nanocomposites consisting of a silicon nitride (Si3N4) ceramic matrix containing up to 13.6vol.% of nitrogen-doped multi-walled carbon nanotubes (CNx) were fabricated. As-synthesized CNx were treated with hydrogen peroxide in order to efficiently detach/isolate the nanotubes from bundles, then they were mixed with the ceramic powders and fully densified using the spark plasma sintering (SPS) technique. Composites containing 13.6vol.% CNx reached an electrical conductivity of 2174Sm-1 that is the highest value reported hitherto for carbon nanotubes/Si3N4 nanocomposites. The nitrogen doping also favored a strong mechanical interlocking between the nanotubes and the Si3N4 matrix; when compared to the undoped carbon nanotubes. These novel nanocomposites could be used in devices associated to power generation or telecommunications.
UR - https://www.scopus.com/pages/publications/84892483913
UR - https://www.scopus.com/pages/publications/84892483913#tab=citedBy
U2 - 10.1016/j.jeurceramsoc.2013.11.026
DO - 10.1016/j.jeurceramsoc.2013.11.026
M3 - Article
AN - SCOPUS:84892483913
SN - 0955-2219
VL - 34
SP - 1097
EP - 1104
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
IS - 5
ER -