Effect of particle characteristics on the rheology of polymer-metallic particle suspensions

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EditorSearch for: Ruas, Candido; Search for: Tomlin, Ted A.
Proceedings titleAdvances in powder metallurgy & particulate materials: proceedings of the 2005 international conference on powder metallurgy & particulate materials
ConferenceInternational Conference on Powder Metallurgy & Particulate Material: Montreal, Quebec, June 19-23, 2005
AbstractParticle suspensions are used in a variety of material processes including powder injection molding, polymer composite molding and metallic foam production. The flow behavior of the suspensions is critical for the adequate processing of such materials. It is well known that particle characteristics have a significant impact on the flow behavior of these solid-liquid systems. In order to better understand the effect of particle characteristics on the rheology of these filled systems, the elastic and viscous moduli G' and G'' of suspensions prepared with particles of different chemical natures (Ni, Cu, Ti, Ti6Al4V, Fe, bronze, SS316L) in molten low-density polyethylene were evaluated under stress sweep using a plate-plate dynamic controlled-stress rheometer (DSR). Correlations between the moduli, and several particle properties (size, shape, surface area, apparent and tap density) were evaluated and hypotheses on the mechanisms of suspension deformation are proposed.
Publication date
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedNo
NRC number54276
NPARC number18398992
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Record identifierc020a8e1-a83d-4b9f-8258-903bd1585b0a
Record created2011-08-17
Record modified2016-05-09
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