Characterizing the global dispersion of carbon nanotubes in ceramic matrix nanocomposites

被引：10
作者：
Koszor, Orsolya [1 ]
Tapaszto, Levente [1 ]
Marko, Marton [2 ]
Balazsi, Csaba [1 ]
机构：
[1] Res Inst Tech Phys & Mat Sci, H-1525 Budapest, Hungary
[2] Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
来源：
APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 20期
关键词：
carbon nanotubes; ceramics; fractals; fracture; nanocomposites; neutron diffraction; silicon compounds;
D O I：
10.1063/1.3029746
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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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页数：3
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