Single firing ceramic glazes: influence of the additives on the rheological behavior

In this paper are presented the results obtained by the characterisation an d the study of the rheological behavior of concentrated frits suspensions u sed in the preparation of ceramic glazes for single firing porous tiles. In particular the effects of different components and additives on the rheolo gical parameters which control the processing phases were put out. For this work the rotational viscosimetry has been utilised to study the rheologica l behavior of glaze suspensions using flow curves in a wide range of appare nt viscosity values (1-10(4)cP). The measurements on the glaze suspensions were carried out on continuos flow which results the best method to reprodu ce the conditions where the glazes are undergo during the preparation and a pplication phases.