Production of glass-ceramics from coal ashes
2001; Elsevier BV; Volume: 21; Issue: 2 Linguagem: Inglês
10.1016/s0955-2219(00)00193-x
ISSN1873-619X
AutoresChristian Leroy, Marta C. Ferro, Regina da Conceição Corredeira Monteiro, M.H.V. Fernandes,
Tópico(s)Advanced ceramic materials synthesis
ResumoAbstract Coal fly ashes produced by an extinguished power plant in the north of Portugal have been melted with addition of CaCO 3 and Na 2 CO 3 to obtain glasses. One of the formulated compositions was selected for further studies and it was possible to manufacture glass-ceramics by crystallising the parent glass through adequate time–temperature schedules. The macroscopic appearance, microstructure, mechanical, thermal and chemical properties indicated that these materials are quite attractive for cladding applications, exhibiting in some cases better performances than the conventional ceramic tiles.
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