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Effect of Aging on Glaze Suspensions Rheology
Author(s) -
Rasteiro Maria G.,
Simões Ema,
Jorge Albano,
Gassman Tiago
Publication year - 2007
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2007.01536.x
Subject(s) - glaze , rheology , frit , materials science , dissolution , suspension (topology) , thixotropy , inert , ceramic glaze , metallurgy , mineralogy , composite material , chemical engineering , ceramic , chemistry , mathematics , organic chemistry , homotopy , pure mathematics , engineering
The rheological behavior of glaze suspensions has to be closely controlled to obtain an adequate final product. In this work, we have studied glaze suspensions produced with a range of industrial frits. The main objective was to establish a correlation between changes in rheological behavior with aging and modifications in the ionic composition of the liquid phase, as a consequence of frit dissolution. Suspension rheology was followed through flow and dynamic oscillatory tests. It was found that frits releasing Ca 2+ , B 3+ , and Pb 2+ can pose handling problems. To better understand the effect of cations' presence on glaze rheology, industrial glazes were compared with simulated glazes produced with inert silica and several cations. These suspensions reproduced the behavior of the industrial glazes and may be used in the future in stabilization tests.