Production of nepheline/quartz ceramics from geopolymer mortars

Kuenzel C, Grover LM, Vandeperre L, Boccaccini AR, Cheeseman CR (2013)

Publication Type: Journal article

Publication year: 2013

Journal

Journal of the European Ceramic Society Elsevier

Publisher: Elsevier

Book Volume: 33

Pages Range: 251-258

Journal Issue: 2

DOI: 10.1016/j.jeurceramsoc.2012.08.022

Abstract

This research has investigated the mechanical properties and microstructure of metakaolin derived geopolymer mortars containing 50% by weight of silica sand, after exposure to temperatures up to 1200°C. The compressive strength, porosity and microstructure of the geopolymer mortar samples were not significantly affected by temperatures up to 800°C. Nepheline (NaAlSiO 4) and carnegieite (NaAlSiO 4) form at 900°C in the geopolymer phase and after exposure to 1000°C the mortar samples were transformed into polycrystalline nepheline/quartz ceramics with relatively high compressive strength (∼275MPa) and high Vickers hardness (∼350 HV). Between 1000 and 1200°C the samples soften with gas evolution causing the formation of closed porosity that reduced sample density and limited the mechanical properties. © 2012 Elsevier Ltd.

Authors with CRIS profile

Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

Imperial College London / The Imperial College of Science, Technology and Medicine GB United Kingdom (GB) University of Birmingham GB United Kingdom (GB)

How to cite

APA:

Kuenzel, C., Grover, L.M., Vandeperre, L., Boccaccini, A.R., & Cheeseman, C.R. (2013). Production of nepheline/quartz ceramics from geopolymer mortars. Journal of the European Ceramic Society, 33(2), 251-258. https://doi.org/10.1016/j.jeurceramsoc.2012.08.022

MLA:

Kuenzel, C., et al. "Production of nepheline/quartz ceramics from geopolymer mortars." Journal of the European Ceramic Society 33.2 (2013): 251-258.

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