Nanotech 2009 Vol. 3
Nanotech 2009 Vol. 3
Nanotechnology 2009: Biofuels, Renewable Energy, Coatings, Fluidics and Compact Modeling

Carbon Nano Structures Chapter 7

Fabrication Processes and Multi-functional Properties of Carbon Nanotube/Inorganic Nanocomposites

Authors: S.H. Hong

Affilation: Korea Advanced Institute of Science and Technology, Korea

Pages: 447 - 449

Keywords: carbon nanotube, nanocomposite, fabrication process, multi-functional property

Abstract:
Molecular level mixing process was developed for the fabrication of homogeneous carbon nanotube(CNT)/Inorganic nanocomposites instead of the conventional powder mixing process in order to solve the agglomeration of CNTs and weak interfacial bonding between CNTs and inorganic matrices. The CNT/Inorganic nanocomposite powders fabricated by molecular level mixing process consisted of homogeneously dispersed CNTs within inorganic powders. The morphologies of the CNT/Cu, CNT/Co nanocomposite powders show ideal composite microstructures, which displays that CNTs are homogeneously implanted in the powders. The CNT/Inorganic nanocomposite powders fabricated by the molecular level mixing process were consolidated into bulk CNT/Inorganic nanocomposite by spark plasma sintering process. The consolidated CNT/Inorganic nanocomposite shows homogeneous distribution of CNTs within the matrices. CNT/Cu and CNT/Co nanocomposites showed enhanced yield strength and Young’s modulus by homogeneous dispersion of CNTs and effective load transfer due to the strong interfacial bonding between CNTs and matrices. CNT/Co nanocomposite field emitters, fabricated by sintering of CNT/Co nanocomposite powders, showed excellent field emission properties with low turn-on field, high current density and homogeneous field emission due to low electrical resistivity by good interfacial bonding between CNTs and Co and homogeneous dispersion of CNTs in Co matrix.

Fabrication Processes and Multi-functional Properties of Carbon Nanotube/Inorganic Nanocomposites

ISBN: 978-1-4398-1784-1
Pages: 694
Hardcopy: $179.95