RHEOLOGY OF SUSPENSIONS WITH ALUMINUM NANO-PARTICLES. doi: 10.5028/jatm.2009.01014347

Authors

  • Ulrich Teipel Georg-Simon-Ohm University
  • Ulrich Förter-Barth Institut Chemische Technologie

Keywords:

Aluminum nano-particles, Rheology, ALEX, HTPB, Viscoelastic properties.

Abstract

Nano-scale aluminum particles are innovative materials increasingly used in energetic formulations. In this contribution, the rheological behavior of suspensions with either paraffin oil or HTPB as the matrix fluid and nano-scale aluminum (ALEX) as the dispersed phase is described and discussed. The paraffin oil/aluminum suspensions exhibit non-Newtonian flow behavior over a wide range of concentrations, whereas the HTPB/aluminum suspensions exhibit
Newtonian behavior (i.e. the viscosity is independent of shear stress) up to a concentration of 50 vol.% aluminum. Both systems have unusual viscoelastic properties in that their elastic moduli are independent of the solids concentration.

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Published

2011-07-25

Issue

Section

Original Papers