A PCE-based rheology modifier allows machining of solid cast green bodies of alumina
Avcı, Gökay and Akhlaghi Baghoojari, Omid and Üstbaş, Burçin and Özbay, Ceren and Menceloğlu, Yusuf Z. and Akbulut, Özge (2016) A PCE-based rheology modifier allows machining of solid cast green bodies of alumina. Ceramics International, 42 (3). pp. 3757-3761. ISSN 0272-8842 (Print) 1873-3956 (Online)
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Official URL: http://dx.doi.org/10.1016/j.ceramint.2015.11.004
The performance of a poly(carboxylate ether) (PCE)-based superplasticizer to enable the machining of green bodies that are solid cast from suspensions of alumina was investigated. An alumina loading of 35 vol% in the presence of 1.25 wt% superplasticizer was established to be suitable for lathing and removal of significant amount of material through drilling. A reduction of 77% in the diameter of green bodies that corresponds to a 59% reduction in volume was achieved. The lathed green bodies exhibited smooth terraces without visible cracks. All of the green bodies were sintered without a polymer burnout step.
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