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Cerâmica

versão impressa ISSN 0366-6913versão On-line ISSN 1678-4553

Resumo

ANJOS, R. D. dos; SALOMAO, R.  e  PANDOLFELLI, V. C.. Silica sol as a binder for ceramic suspensions. Cerâmica [online]. 2006, vol.52, n.322, pp.161-166. ISSN 0366-6913.  http://dx.doi.org/10.1590/S0366-69132006000200007.

Recently, great efforts have been made on studying calcium-free binder agents and their use in refractory ceramics. The publications suggest silica sol as an alternative binder, which can be gelled through the formation of a three-dimensional network of particles. Therefore, further understanding regarding the interaction between silica sol's and other systems' particles is required. Researches in this area would enable the determination of silica sol's potential as a binder agent and the optimization of the products' process and properties. The objective of this work was to investigate the influence of temperature, dispersant and gelling agents content on alumina suspensions using rheometric techniques. Silica sol presented a good performance as a binder agent for ceramic suspensions when applied with optimized aditivation.

Palavras-chave : ceramic suspension; silica sol; gelling agent; gelling.

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