Journal
CERAMICS INTERNATIONAL
Volume 39, Issue 7, Pages 7657-7668Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2013.02.104
Keywords
Porosity; Alkali-bonded ceramics; Geopolymerization; Foam; Silicon
Categories
Funding
- Italian Ministry of University and Research
- National Research Council of Italy
- foundation Toso Montanari
Ask authors/readers for more resources
Geopolymerization is an aqueous based process to produce synthetic alkali-aluminosilicates with porosity that can be tailored from the nano- to the ultra-macrometric range. In order to fulfill the requirements for many different applications and porous 3D networks (namely alkali-aluminosilicate foams) were prepared by inducing interconnected ultra-macro-porosity (up to the millimeter range) in the alkali-bonded Matrices, exploiting the ability of silicon powder to generate H-2 in the aqueous medium. Being H-2 the product of a water-consuming process which competes with geopolymerization, the process parameters and the characteristics of the resulting foamed materials are strongly influenced by the amount of added silicon. Polymerization degree, accessibility of the geopolymer inner volume and the micro-ultra-macro-structure of the foams were determined and related to the process parameters of the contemporary geopolymerization and foaming. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available