Cellular ceramics by slip casting of emulsified suspensions
authors Cesconeto, FR; Frade, JR
nationality International
journal JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
author keywords Cellular ceramics; Slip casting; Emulsification; Colloidal processing
keywords MACROPOROUS CERAMICS; EMULSIONS; BEHAVIOR
abstract Cellular ceramics were processed by slip casting of alumina suspensions emulsified with sunflower oil. A model behavior was derived on assuming that the templating dispersed phase and its droplet size distribution are retained as porosity in the resulting cellular ceramics, whereas the continuous ceramic suspension evolves to dense struts and thin inter-pore walls. Representative values of solid load and oil to suspension ratio were selected to seek close packed spatial distribution of nearly spherical. Stirring rate and additions of surfactant were also varied for greater flexibility in adjusting droplet size and rheology of the corresponding emulsified suspensions; this also contributes to minimize undue losses of porosity, relative to the model behavior, and determines microstructural features such as size distributions and average cell size.
publisher ELSEVIER SCI LTD
issn 0955-2219
isbn 1873-619X
year published 2020
volume 40
issue 15
beginning page 4949
ending page 4954
digital object identifier (doi) 10.1016/j.jeurceramsoc.2020.04.002
web of science category Materials Science, Ceramics
subject category Materials Science
unique article identifier WOS:000564255500001
  impact metrics
journal analysis (jcr 2019):
journal impact factor 4.495
5 year journal impact factor 4.283
category normalized journal impact factor percentile 98.214
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