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Gel casting of aqueous suspensions of BaTiO3 nanopowders

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journal contribution
posted on 24.11.2008, 12:33 by Isabel Santacruz, M. Isabel Nieto, J.G.P. Binner, Rodrigo Moreno
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.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Citation

SANTACRUZ, I. ... et al, 2009. Gel casting of aqueous suspensions of BaTiO3 nanopowders. Ceramics International, 35 (1), pp. 321–326

Publisher

© Elsevier

Version

NA (Not Applicable or Unknown)

Publication date

2009

Notes

This article was published in the journal, Ceramics International [© Elsevier] and the definitive version is available at: http://www.sciencedirect.com/science/journal/02728842

ISSN

0272-8842

Language

en

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