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Title: Gel casting of aqueous suspensions of BaTiO3 nanopowders
Authors: Santacruz, Isabel
Nieto, M. Isabel
Binner, J.G.P.
Moreno, Rodrigo
Keywords: Suspensions
Shaping
Nano
BaTiO3
Issue Date: 2009
Publisher: © Elsevier
Citation: SANTACRUZ, I. ... et al, 2009. Gel casting of aqueous suspensions of BaTiO3 nanopowders. Ceramics International, 35 (1), pp. 321–326
Abstract: Commercial nano BaTiO3 powders have been formed into green bodies using colloidal forming routes. A study of the rheological behaviour of the suspensions as a function of dispersant concentration and homogenisation time was made in order to prepare stable concentrated suspensions of the nanopowders. Bulk components were then manufactured using aqueous slip and gel casting involving polysaccharides that gel on cooling, i.e. agar. The performance of theses consolidation techniques for obtaining dense green bodies from the BaTiO3 nanopowders was studied. It was possible to prepare relatively big gel cast samples with a similar density and microstructure and in a shorter time compared to those obtained by slip casting.
Description: This article was published in the journal, Ceramics International [© Elsevier] and the definitive version is available at: http://www.sciencedirect.com/science/journal/02728842
Version: Published (author's copy) peer reviewed
DOI: 10.1016/j.ceramint.2007.10.009
URI: https://dspace.lboro.ac.uk/2134/4022
ISSN: 0272-8842
Appears in Collections:Published Articles (Materials)

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