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Production of Li2O-ZrO2-SiO2-Al2O3 (LZSA) Glass-Ceramic Foams by Aeration and Polymerization of Suspension

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Abstract:

Porous glass-ceramics belonging to the Li2O-ZrO2-SiO2-Al2O3 (LZSA) system were prepared by gelcasting. This processing technique associated to aeration of ceramic suspensions containing a foaming agent, allows the production of ceramics with high opened porosity (>90%), cell geometry tending to the spherical form, cellular interconnectivity and high green strength. In this work glass-ceramics foams were prepared by addition of different concentrations of foaming agents (Alkolan) and sintered at 750, 850 and 950oC for 30 min. The LZSA glass-ceramic foams were characterized by density, porosity, thermal shrinkage, microstructural analysis and mechanical strength. The morphological, physical and mechanical properties of the consolidated glass-ceramic foams indicated that the process of gelcasting may be a valid alternative to produce porous materials for applications at temperatures lower than 950°C.

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Periodical:

Materials Science Forum (Volumes 775-776)

Pages:

529-533

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.775-776.529

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Online since:

January 2014

Authors:

Ida Eunice Favarin Pozzobom, Mariana de Souza, João Batista Rodrigues Neto, Fabiano Raupp-Pereira, Eliandra de Sousa Trichês, Antonio Pedro Novaes de Oliveira

Keywords:

Gelcasting, Glass-Ceramic Foams, Porous Ceramics

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] F.S. Ortega, A.E.M. Paiva, J.A. Rodrigues and V.C. Pandolfelli: Cerâmica Vol. 49 (2003), p.1.

Google Scholar

[2] P. Sepulveda and J.G.P. Binner: Journal of the European Ceramic Society Vol. 19 (1999), p. (2059).

Google Scholar

[3] J. Yang, J. Yu and Y. Huang: Journal of the European Ceramics Society Vol. 31 (2011), p.2569.

Google Scholar

[4] C. Tallon and G.V. Franks: Journal of the Ceramic Society of Japan Vol. 119 (2011), p.147.

Google Scholar

[5] E. Sousa, C.R. Rambo, F.S. Ortega, A.P.N. Oliveira and V.C. Pandofelli: Cerâmica, Vol. 55 (2009), p.157.

Google Scholar

[6] P. Sepulveda: Am. Ceram. Soc. Bull. Vol. 76 (1997), p.61.

Google Scholar

[7] P. Sepulveda, J.G.P. Binner: Chem. Mat. Vol. 13 (2001), p.3882.

Google Scholar

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