article
Propriedade físico - mecânicas e ambiental de cerâmica estrutural com estabilização do íon manganês
Fecha
2012Registro en:
1807-1600
10.15628/holos.2012.1107
Autor
Melo, Marcus Antônio de Freitas
Câmara, Ana Paula Costa
Medeiros, L. C. de
Macedo, D. A. de
Melo, Dulce Maria de Araújo
Resumen
The main aim of this study was to evaluate the technological and environmental feasibility of adding divalent manganese ion into a clayey mass of Rio Grande do Norte. The ceramic raw material was characterized by XRF and XRD. The metal ion was added as aqueous solutions at concentrations of 100, 150 and 200 mg/L. The physical – mechanical and environmental properties of ceramic bodies were investigated after sintering between 850 and 1050°C. The technological properties evaluated were: linear shrinkage, water absorption, apparent porosity, bulk density, and flexural strength (3 points). The results indicated that the ceramic with stabilization of the manganese ion is suitable for the manufacture of various ceramic products such as massive brick and semiporous tiles without offering risk to the environment