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Coaxial Electrohydrodynamic Atomization of Ceramic Suspensions
Author(s) -
Balasubramanian K.,
Jayasinghe S. N.,
Edirisinghe M. J.
Publication year - 2006
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2006.02054.x
Subject(s) - electrohydrodynamics , coaxial , materials science , ceramic , microstructure , composite number , jet (fluid) , composite material , cubic zirconia , sintering , mechanical engineering , electric field , mechanics , physics , engineering , quantum mechanics
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°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.