A quantitative method for analyzing the dispersion and agglomeration of nano-particles in composite materials

Bryan M. Tyson, Rashid K. Abu Al-Rub, Ardavan Yazdanbakhsh, Zachary Grasley

Research output: Contribution to journalArticlepeer-review

79 Scopus citations

Abstract

The distribution of particles (e.g. micro and nanoinclusions, carbon nanotubes, carbon nanofibers) within a composite material plays a vital role in dictating many important constitutive properties. In this study, a general method to quantify the dispersion and agglomeration of nano-particles in composite materials has been developed. The dispersion quantity, D, is measured by the free-path spacing between particles; whereas, the agglomeration quantity, A, is measured by the particle size. In both cases, a quantifiable percentage is calculated based on the statistical probability that either the free-path spacing or particle size falls within a certain percentage above and below μ, where μ is either the mean spacing or particle size. The proposed method is used to quantify the dispersion and agglomeration of both carbon nanofibers (CNFs) and carbon nanotubes (CNTs) within aqueous solutions.

Original languageBritish English
Pages (from-to)1395-1403
Number of pages9
JournalComposites Part B: Engineering
Volume42
Issue number6
DOIs
StatePublished - Sep 2011

Keywords

  • A. Discontinuous reinforcement
  • A. Particle-reinforcement
  • C. Statistical properties/methods
  • D. Electron microscopy
  • Dispersion

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