Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/2620

Title: Rheological characterisation of ammonium polyacrylate dispersed, concentrated alumina suspensions
Authors: Binner, J.G.P.
McDermott, A.M.
Issue Date: 2006
Publisher: © Elsevier
Citation: BINNER and McDERMOTT, 2006. Rheological characterisation of ammonium polyacrylate dispersed, concentrated alumina suspensions. Ceramics International, 32, pp. 803-810.
Abstract: The effect of low-molecular weight ammonium polyacrylate (NHPA) dispersant on high solids content alumina suspensions has been rheologically characterised. The viscosity exhibited a strong dependence on the solid concentration, a relationship that could be accurately represented by the modified versions of Eilers and Chong equations from which the maximum packing fraction was found to be 0.655. When subjected to shear sweep investigations, the suspensions demonstrated shear-thinning and thixotropic behaviour as a result of changes to the suspension microstructure. Application of the Ostwald de Waele model successfully characterised the shear-dependent behaviour of the suspensions over a wide range of shear rates. The viscoelastic properties of the suspensions were found to be functions of both frequency and solids loading with the viscous component dominating over the elastic component under the conditions investigated.
Description: This is Restricted Access. This article was published in the journal, Ceramics International [© Elsevier] and is also available at: http://www.sciencedirect.com/science/journal/02728842.
URI: https://dspace.lboro.ac.uk/2134/2620
ISSN: 0272-8842
Appears in Collections:Closed Access (Materials)

Files associated with this item:

File Description SizeFormat
Rheol charac of NH4PA disp Al2O3 susp - published.pdf353.31 kBAdobe PDFView/Open


SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.