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Coaxial electrohydrodynamic atomization of ceramic suspensions

Balasubramanian, K; Jayasinghe, SN; Edirisinghe, MJ; (2006) Coaxial electrohydrodynamic atomization of ceramic suspensions. INT J APPL CERAM TEC , 3 (1) 55 - 60.

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Abstract

In this work we demonstrate a novel method of preparing composite ceramic microstructures, using alumina-zirconia as an example. Suspensions of these two ceramics, containing a similar solids content, were simultaneously subjected to electrohydrodynamic atomization (EHDA) in the stable cone-jet mode and the resulting relics were analyzed by microscopical techniques before and after partial sintering at 1200 degrees C. We show that the new method, coaxial EHDA (CEHDA), is capable of forming different annular microstructures, which are mainly controlled by the speed of the jetting.

Type:Article
Title:Coaxial electrohydrodynamic atomization of ceramic suspensions
Keywords:ALUMINA-ZIRCONIA COMPOSITES, MECHANICAL-PROPERTIES, ELECTROSTATIC ATOMIZATION, MICROSTRUCTURE, POWDER, MODES, JETS
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Mechanical Engineering

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