Preparation of stable suspensions for slip casting of monolithic and composite ceramics

Majić Renjo, Marijana and Ćurković, Lidija and Grilec, Krešimir and Sakoman, Matija (2014) Preparation of stable suspensions for slip casting of monolithic and composite ceramics. = Preparation of stable suspensions for slip casting of monolithic and composite ceramics. In: 4th international conference Mechanical technologies and structural materials, Split, Hrvatska.

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Abstract

Stability of highly concentrated (70 wt. %) aqueous suspensions of monolithic and composite ceramics suitable for slip casting was monitored by rheological properties measurements (flow curves and rheological parameters). Three groups of suspensions were prepared: monolithic Al2O3 and composite Al2O3– t-ZrO2 ceramics (composition: 95 wt. % Al2O3 – 5 wt. % t-ZrO2 and 90 wt. % Al2O3 – 10 wt. % t- ZrO2) with different amount of dispersant DOLAPIX CE 64. Recorded flow curves were fitted to the power law, Herschel-Bulkley and Bingham models. Minimal viscosity was determined for each prepared suspension, in order to determine optimal slip casting parameters. Obtained results showed that the amount of dispersant for required minimal viscosity increases with the increase of the t-ZrO2 amount.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): Al2O3 – t - ZrO2, slip casting, viscosity, flow curves
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 1000 Department of Materials > 1010 Chair of Materials and Tribology
Date Deposited: 20 Sep 2016 14:00
Last Modified: 20 Sep 2016 14:00
URI: http://repozitorij.fsb.hr/id/eprint/6517

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