Preparation and characterization of foams from sheet glass and fly ash using carbonates as foaming agents

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abstract

Glass foams were produced using sheet glass cullet and fly ashes from thermal power plant with added carbonates (commercial dolomite- and calcite-based sludges) as foaming agents. The influence of type and amount of carbonates as well as of the sintering temperature on the apparent density, compressive strength, microstructure and crystalline phases was evaluated. The experimental results showed that homogenous microstructures of large pores could be obtained by adding just 1-2 wt.% carbonates and using low sintering temperature (850 degrees C), leading to foams presenting apparent density and compressive strength values of about 0.36-0.41 g/Cm-3 and 2.40-2.80 Mpa, respectively. Good correlations between compressive strength, apparent density and microstructure (pore size, struts' thickness and internal porosity) were observed. (c) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

keywords

ZEOLITES; CRYSTALLIZATION

subject category

Materials Science

authors

Femandes, HR; Tulyaganov, DU; Ferreira, JMF

our authors

foto Hugo Alexandre Gonçalves da Rocha Fernandes

Hugo Alexandre Gonçalves da Rocha Fernandes

Junior Researcher
foto José Maria da Fonte Ferreira

José Maria da Fonte Ferreira

Retired Professor

Groups

G3 - Electrochemical Materials, Interfaces and Coatings
G5 - Biomimetic, Biological and Living Materials

acknowledgements

The financial support from CICECO is acknowledged.

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Publication Details

type
Journal Article
year
2009
journal
CERAMICS INTERNATIONAL
volume
35
publisher
ELSEVIER SCI LTD
issn
0272-8842
issue
1
digital object identifier
10.1016/j.ceramint.2007.10.019
web of science article identifier
WOS:000261818300042

Journal Metrics (JCR 2019)

Journal Impact Factor
3.83
Journal Impact Factor (5 yrs)
3.513
category normalized journal percentile
94.643

Citations

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