Influência da composição das matérias-primas no processo de gresificação de revestimentos cerâmicos

Starting from the use of conventional and non-conventional raw materials, several series of ceramic bodies were formulated for vitrified ceramic tiles (that is, without carbonate), obtaining vitrification curves (water absorption and linear shrinkage as a function of temperature). The mineralogical and microstructural alterations due to the firing process were accompanied by Scanning Electron Microscopy. The results show that starting from different types of raw materials, not only it is possible to obtain ceramic bodies for porcelain tiles, but also the decrease of the maximum firing temperature, maintaining the dimensional stability.