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Investigation of machinability of green bodies of solid cast alumina through the addition of a poly(carboxylate ether)-based superplasticizer

Avcı, Gökay (2015) Investigation of machinability of green bodies of solid cast alumina through the addition of a poly(carboxylate ether)-based superplasticizer. [Thesis]

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Official URL: http://risc01.sabanciuniv.edu/record=b1615025 (Table of Contents)

Abstract

The performance of a poly(carboxylate ether) (PCE)– based superplasticizer to produce machinable green bodies from suspensions of alumina with 200 nm particle size was investigated. The theoretical maximum particle packing limit was found to be 45.7 vol%. An alumina loading of 35 vol% in the presence of 1.25 wt% superplasticizer was established to be suitable for drilling and removal of significant amount of material—59% reduction in volume (77% reduction in the diameter of the green bodies) was achieved. The lathed green bodies to produce terraced structures exhibited smooth surfaces without visible cracks. All of the green bodies were sintered without a polymer burnout step. Sintered solid cast bodies shrunk 16.1±1.8% at the outer diameter and 17.5±0.9% at the inner diameter.

Item Type:Thesis
Additional Information:Yükseköğretim Kurulu Tez Merkezi Tez No: 418596.
Uncontrolled Keywords:Green body machining. -- Solid casting. -- Superplasticizer. -- Yeşil vücut seramik işlenmesi. -- Katı döküm. -- Süperplastikleştirici.
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
ID Code:34718
Deposited By:IC-Cataloging
Deposited On:07 May 2018 23:12
Last Modified:07 May 2018 23:12

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