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Updated: Jun 13, 2026

Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films
Published on: January 26, 2016
Influence of heating rate on the microstructure of glass foams
Andrea Pokorny1, Juliane Vicenzi, Carlos Pérez Bergmann
1Department of Materials, Engineering School, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil. andrea_pokorny@yahoo.com.br
Abstract:
In the present study, glass foams made of ground soda-lime glass obtained from transparent glass bottles and dolomite were investigated. The objective of this paper was to evaluate the influence of the heating rate on the microstructure of the obtained material and on its properties. The technological characterization of the ceramic bodies involved the determination of the volumetric expansion and average diameter of the pore. The microstructure was investigated by optical microscopy and scanning electron microscopy. Experimental results showed that the heating rate influenced both the volumetric expansion and the average diameter of the pore. Lower heating rates resulted in lower volumetric expansions since more CO(2) escaped from within the ceramic body.
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