The rheological behavior and surface charging of gelcasting alumina suspensions
N/D
Tipo de produção
Artigo
Data de publicação
2008
Texto completo (DOI)
Periódico
Ceramics International
Editor
Texto completo na Scopus
Citações na Scopus
9
Autores
Ortega F.S.
Castro R.H.R.
Gouvea D.
Pandolfelli V.C.
Orientadores
Resumo
Aim of this work is to investigate the effect of monomers containing either carboxylate (ammonium acrylate) or acrylamide (hydroxymethylacrylamide) functional groups on the surface charging and rheological behavior of alumina suspensions. The rheological behavior was investigated by changing the concentrations of dispersant (ammonium polyacrylate) and monomers in the suspensions. The zeta potential of alumina suspensions containing each of the different monomers was measured as a function of dispersant additions. The suspension rheological behavior varied significantly depending on the monomer type, which could be explained in terms of repulsive forces, pH changes and additive interactions. © 2006 Elsevier Ltd and Techna Group S.r.l.
Citação
ORTEGA, F. S.;ORTEGA, F;Ortega, F.S.;Ortega, Fernando Santos;F. S. Ortega;Ortega, F. S.;Ortega, Fernando dos Santos;DOS SANTOS ORTEGA, FERNANDO; CASTRO, R; GOUVEA, D; PANDOLFELLI, V. The rheological behavior and surface charging of gelcasting alumina suspensions. Ceramics International, v. 34, p. 237-241, 2008.
Palavras-chave
Keywords
A. Suspension; Gelcasting; Monomer; Rheology; Zeta potential
Assuntos Scopus
Additive interactions; Gelcasting; Repulsive forces