Journal
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume 32, Issue 16, Pages 4063-4072Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2012.06.023
Keywords
Injection moulding; Rheology; Zircon
Categories
Funding
- GUZMAN GLOBAL S.L
- ALFA MIMTech
- Spanish Ministry of the Economy and Competitiveness [IPT-2011-0931-020000]
- European Funds for Regional Development (FEDER)
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In this work, a cellulose acetate butyrate (CAB) and polyethylene glycol (PEG) blend is used as the binder system in a zirconium silicate mineral powder feedstock for powder injection moulding. These irregular zircon powders make the mixing process and the selection of an optimal solid loading level a difficult task. Torque rheology methodologies combined with other techniques are used for evaluation of the parameters affecting the mixing process and determination of the critical powder volume concentration (CPVC). Temperature variations during the mixing process are monitored and used as an indicator of the friction energy of the system and thus for the optimal solid loading selection. There have thus far been limited amounts of work conducted on torque rheology of highly loaded feedstocks that incorporate a study of the system's temperature evolution. A detailed study could be a key factor for understanding the mixing behaviour of highly loaded feedstocks. (C) 2012 Elsevier Ltd. All rights reserved.
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