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Compressive behavior of high-viscosity granular systems: Effects of viscosity and strain rate
- Source :
- Powder Technology. 302:480-487
- Publication Year :
- 2016
- Publisher :
- Elsevier BV, 2016.
-
Abstract
- The compressive behavior of granular materials has been evaluated under a variety of conditions. Granules were formulated using two size fractions of two different particulate materials prepared with a polydimethylsiloxane binder ranging in viscosity from 12–2413 Pa·s. The solids content of the granules was maintained constant at 90% in all cases studied. Granules were compressed at three different velocities (1, 10, and 100 mm/s). At these high viscosities, characteristics of the binder appear to have the greatest impact on granular behavior. Through ~ 300 Pa·s, the granule strength increases with increasing viscosity. Above this critical viscosity, however, the granular strength remains approximately constant within a given set of test parameters. The compression velocity also impacts the granular strength, as do the size and shape of the particulate inclusions (though to a lesser extent).
- Subjects :
- Materials science
Polydimethylsiloxane
General Chemical Engineering
Granule (cell biology)
02 engineering and technology
Particulates
Strain rate
021001 nanoscience & nanotechnology
Granular material
Viscosity
Granulation
chemistry.chemical_compound
020401 chemical engineering
chemistry
Particulate material
0204 chemical engineering
Composite material
0210 nano-technology
Subjects
Details
- ISSN :
- 00325910
- Volume :
- 302
- Database :
- OpenAIRE
- Journal :
- Powder Technology
- Accession number :
- edsair.doi...........81d11c80b11d956686790adecd592618