@article{Papo_Piani_2001, title={RHEOLOGY OF ALUMINA SLIPS}, volume={29}, url={https://hjic.mk.uni-pannon.hu/index.php/hjic/article/view/1087}, DOI={10.1515/hjic-2001-27}, abstractNote={The aim of the present work is to study the rheological behaviour of concentrated aqueous alumina suspensions. Aqueous alumina suspensions were prepared at various solid contents (65 to 77.5 wt%). Rheological tests were carried out at 25±0.1 °C by using the rate controlled coaxial cylinder viscometer Rotovisko-Haake 20, system M5-osc., measuring device SV2P with serrated surfaces. The tests were performed under both continuous and oscillatory flow conditions. All the suspensions studied show a rheological behaviour of the shear-thinning type; in addition, the presence of a yield stress is noticed. Some rheological equations of both τ=f(γ) and hr=f(Φ, γ) type have been taken into consideration for describing the flow behaviour of the alumina slips investigated. A master-curve procedure was applied in order to give a compact representation of the flow curves drawn for the alumina suspensions examined. Finally, the effect of the addition of a dispersing agent (sodium polyphosphate) on the rheology of alumina slips was investigated and its optimum dosage was determined as well. }, number={2}, journal={Hungarian Journal of Industry and Chemistry}, author={Papo, A. and Piani, L.}, year={2001}, month={Oct.}, pages={149–154} }