Characterizing the global dispersion of carbon nanotubes in ceramic matrix nanocomposites

Koszor, Orsolya; Tapasztó, Levente; Markó, Márton; Balázsi, Csaba
November 2008
Applied Physics Letters;11/17/2008, Vol. 93 Issue 20, p201910
Academic Journal
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.


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