Effect of alkaline-earth oxides on firing behaviour of monoporosa wall tile bodies
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For the production of ceramic wall tiles, effective sintering has become increasingly important in recent years to reduce firingtimes and/or peak firing temperatures and thus cope with high energy costs and environmental issues. This study was aimedto investigate the effects of alkaline-earth oxides on the fast-firing behaviour of wall tile bodies. To this end, several bodyformulations with different amounts of calcite and magnesite were prepared and fast fired under laboratory conditions. Thesintering behaviour of the representative formulations was evaluated using a double-beam non-contact optical dilatometer(ODHT). Thermal properties were characterised by TG-DTA. Phase and microstructural analyses were performed by XRDand SEM, respectively. The results showed that an optimum combination of the aforementioned earth alkalines has aconsiderable influence on lowering the peak firing temperature, shortening the firing cycle and improving the glaze qualityby lowering the decomposition temperature of carbonates in the formulations.
Abstract
For the production of ceramic wall tiles, effective sintering has become increasingly important in recent years to reduce firingtimes and/or peak firing temperatures and thus cope with high energy costs and environmental issues. This study was aimedto investigate the effects of alkaline-earth oxides on the fast-firing behaviour of wall tile bodies. To this end, several bodyformulations with different amounts of calcite and magnesite were prepared and fast fired under laboratory conditions. Thesintering behaviour of the representative formulations was evaluated using a double-beam non-contact optical dilatometer(ODHT). Thermal properties were characterised by TG-DTA. Phase and microstructural analyses were performed by XRDand SEM, respectively. The results showed that an optimum combination of the aforementioned earth alkalines has aconsiderable influence on lowering the peak firing temperature, shortening the firing cycle and improving the glaze qualityby lowering the decomposition temperature of carbonates in the formulations.
참고문헌 (20)
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