Evolved gas analysis of clay materials

Ceramic materials were produced at different temperatures, and the gases released during firing were analyzed using a commercial system based on photothermal techniques. Emissions of CO, CO 2 , NO, N 2 O , and CH 4 were observed, while NH 3 and SO 2 were not observed within our detection limits (1 p...

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Bibliographic Details
Published in:Review of Scientific Instruments 2003-01, Vol.74 (1), p.663-666
Main Authors: dos Santos, D. R., Toledo, R., Faria, R. T., Carrió, J. G., da Silva, M. G., Auler, L. T., Vargas, H.
Format: Article
Language:English
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Summary:Ceramic materials were produced at different temperatures, and the gases released during firing were analyzed using a commercial system based on photothermal techniques. Emissions of CO, CO 2 , NO, N 2 O , and CH 4 were observed, while NH 3 and SO 2 were not observed within our detection limits (1 ppm). The evolution of crystalline phases, open porosity, volumetric shrinkage, and rupture tension were correlated to the amount of gases released at different temperatures, ranging from 300 to 1200 °C, and these results can be applied to an optimization of the production process.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1517735