Alternatives in the Body Composition of Porcelain Tiles Produced by the Dry Route

Autor(es)

Melchiades, Fabio G. ^[1] ; dos Santos, Lisandra R. ^[1] ; Nastri, Suelen ^[1] ; Boschi, Anselmo O. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos UFSCar, Dept Engn Mat DEMa, Lab Revestimentos Ceram LaRC, Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: CFI-CERAMIC FORUM INTERNATIONAL; v. 89, n. 1, p. E39-E43, JAN 2012.
• Citações Web of Science: 0

Resumo

Dry route processing is currently the focus of a great deal of interest due to environmental and economic issues. Previous works have shown the feasibility of producing porcelain tiles by the dry route. The rheological behavior in suspension is no longer a fundamental requirement for the ceramic body composition employed in dry route porcelain tile manufacturing, since its preparation does not involve the formation of suspension. In this context, the purpose of this work was to determine the fluxing potential of water-soluble or partially water-soluble raw materials in a porcelain tile composition. The effectiveness of several borates, i.e., colemanite, ulexite, hydroboracite, as well as sodium carbonate, was tested in a comparative study. The results of this study indicate that small additions of these fluxing agents suffice to greatly reduce the firing temperature without causing high pyroplastic deformation of the bodies. The best results were obtained in compositions containing hydroboracite. This finding is especially relevant for the development of alternative compositions of porcelain tiles produced by the dry route. (AU)

• Processo FAPESP: 08/58972-0 - Estudo comparativo entre as tecnologias "via umida" e "via seca" para a preparacao de massas de revestimentos ceramicos
• Beneficiário: Fábio Gomes Melchiades
• Modalidade de apoio: Bolsas no Brasil - Doutorado