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Title: Characterizing the global dispersion of carbon nanotubes in ceramic matrix nanocomposites

Abstract

The dispersion of single-walled carbon nanotubes in silicon nitride ceramic matrices has been investigated by small angle neutron scattering experiments. In contrast to electron microscopy investigations of fracture surfaces, neutron scattering measurements provide information on the bulk dispersion of nanotubes within the matrix. The scattering intensities reveal a decay exponent characteristic to surface fractals, which indicates that the predominant part of nanotubes can be found in loose networks surrounding the grains of the polycrystalline matrix.

Authors:
; ;  [1];  [2]
  1. Research Institute for Technical Physics and Materials Science, H-1525 Budapest (Hungary)
  2. Research Institute for Solid State Physics and Optics, H-1525 Budapest (Hungary)
Publication Date:
OSTI Identifier:
21175761
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 93; Journal Issue: 20; Other Information: DOI: 10.1063/1.3029746; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CARBON; CERAMICS; COMPOSITE MATERIALS; DISPERSIONS; ELECTRON MICROSCOPY; FRACTALS; FRACTURES; NANOTUBES; NEUTRON DIFFRACTION; POLYCRYSTALS; SILICON NITRIDES; SMALL ANGLE SCATTERING; SURFACES

Citation Formats

Koszor, Orsolya, Tapaszto, Levente, Balazsi, Csaba, and Marko, Marton. Characterizing the global dispersion of carbon nanotubes in ceramic matrix nanocomposites. United States: N. p., 2008. Web. doi:10.1063/1.3029746.
Koszor, Orsolya, Tapaszto, Levente, Balazsi, Csaba, & Marko, Marton. Characterizing the global dispersion of carbon nanotubes in ceramic matrix nanocomposites. United States. doi:10.1063/1.3029746.
Koszor, Orsolya, Tapaszto, Levente, Balazsi, Csaba, and Marko, Marton. Mon . "Characterizing the global dispersion of carbon nanotubes in ceramic matrix nanocomposites". United States. doi:10.1063/1.3029746.
@article{osti_21175761,
title = {Characterizing the global dispersion of carbon nanotubes in ceramic matrix nanocomposites},
author = {Koszor, Orsolya and Tapaszto, Levente and Balazsi, Csaba and Marko, Marton},
abstractNote = {The dispersion of single-walled carbon nanotubes in silicon nitride ceramic matrices has been investigated by small angle neutron scattering experiments. In contrast to electron microscopy investigations of fracture surfaces, neutron scattering measurements provide information on the bulk dispersion of nanotubes within the matrix. The scattering intensities reveal a decay exponent characteristic to surface fractals, which indicates that the predominant part of nanotubes can be found in loose networks surrounding the grains of the polycrystalline matrix.},
doi = {10.1063/1.3029746},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 20,
volume = 93,
place = {United States},
year = {2008},
month = {11}
}