This HTML5 document contains 45 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

PrefixIRI
dctermshttp://purl.org/dc/terms/
n12http://linked.opendata.cz/resource/domain/vavai/riv/tvurce/
n11http://linked.opendata.cz/resource/domain/vavai/subjekt/
n6http://linked.opendata.cz/ontology/domain/vavai/
shttp://schema.org/
skoshttp://www.w3.org/2004/02/skos/core#
n3http://linked.opendata.cz/ontology/domain/vavai/riv/
n10http://bibframe.org/vocab/
n4http://linked.opendata.cz/resource/domain/vavai/vysledek/RIV%2F61388955%3A_____%2F13%3A00420822%21RIV14-AV0-61388955/
n2http://linked.opendata.cz/resource/domain/vavai/vysledek/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
n8http://linked.opendata.cz/ontology/domain/vavai/riv/klicoveSlovo/
n5http://linked.opendata.cz/ontology/domain/vavai/riv/duvernostUdaju/
xsdhhttp://www.w3.org/2001/XMLSchema#
n17http://linked.opendata.cz/ontology/domain/vavai/riv/aktivita/
n13http://linked.opendata.cz/ontology/domain/vavai/riv/jazykVysledku/
n18http://linked.opendata.cz/ontology/domain/vavai/riv/druhVysledku/
n16http://linked.opendata.cz/ontology/domain/vavai/riv/obor/
n15http://reference.data.gov.uk/id/gregorian-year/

Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F13%3A00420822%21RIV14-AV0-61388955
rdf:type
n6:Vysledek skos:Concept
dcterms:description
Alkali-bonded ceramics and foams with tailored porosity have very interesting applications as thermal insulators, catalysts, filters, etc. Alkali-bonded ceramics were prepared starting from metakaolin and potassium silicate, selecting the process conditions, to change the intrinsic nano-micro-porosity of the geopolymer, and studying their influence on the degree of geopolymerization. Optimum geopolymerization conditions were chosen to develop porous 3D networks by inducing interconnected ultramacroporosity (up to the millimetre range) in the material, exploiting the ability of silicon powder to generate H-2 in the reaction environment. The in situ foaming was strongly dependent on the water content of the geopolymeric precursors and the subsequent process of water elimination. The H-2 formation is, in fact, a water-consuming process, just as consolidation is, thus increasing the viscosity. The geopolymeric inorganic matrices and the related foams were fully characterized in terms of microstructure, intrinsic and induced pore size distribution, specific surface area, geopolymerization degree, and surface accessibility of prepared materials. The thermal behaviour of the materials was also studied. The experimental findings highlighted the versatility of the foams that may be appropriately designed based on the possible application. Alkali-bonded ceramics and foams with tailored porosity have very interesting applications as thermal insulators, catalysts, filters, etc. Alkali-bonded ceramics were prepared starting from metakaolin and potassium silicate, selecting the process conditions, to change the intrinsic nano-micro-porosity of the geopolymer, and studying their influence on the degree of geopolymerization. Optimum geopolymerization conditions were chosen to develop porous 3D networks by inducing interconnected ultramacroporosity (up to the millimetre range) in the material, exploiting the ability of silicon powder to generate H-2 in the reaction environment. The in situ foaming was strongly dependent on the water content of the geopolymeric precursors and the subsequent process of water elimination. The H-2 formation is, in fact, a water-consuming process, just as consolidation is, thus increasing the viscosity. The geopolymeric inorganic matrices and the related foams were fully characterized in terms of microstructure, intrinsic and induced pore size distribution, specific surface area, geopolymerization degree, and surface accessibility of prepared materials. The thermal behaviour of the materials was also studied. The experimental findings highlighted the versatility of the foams that may be appropriately designed based on the possible application.
dcterms:title
Alkali-bonded ceramics with hierarchical tailored porosity Alkali-bonded ceramics with hierarchical tailored porosity
skos:prefLabel
Alkali-bonded ceramics with hierarchical tailored porosity Alkali-bonded ceramics with hierarchical tailored porosity
skos:notation
RIV/61388955:_____/13:00420822!RIV14-AV0-61388955
n6:predkladatel
n11:ico%3A61388955
n3:aktivita
n17:I
n3:aktivity
I
n3:cisloPeriodika
SI
n3:dodaniDat
n15:2014
n3:domaciTvurceVysledku
n12:9628983 n12:1929453
n3:druhVysledku
n18:J
n3:duvernostUdaju
n5:S
n3:entitaPredkladatele
n4:predkladatel
n3:idSjednocenehoVysledku
60099
n3:idVysledku
RIV/61388955:_____/13:00420822
n3:jazykVysledku
n13:eng
n3:klicovaSlova
alkali-bonded ceramics; metalcaolin; geopolymerization parameters
n3:klicoveSlovo
n8:metalcaolin n8:alkali-bonded%20ceramics n8:geopolymerization%20parameters
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[87BCB556DA19]
n3:nazevZdroje
Applied Clay Science
n3:obor
n16:CF
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
7
n3:rokUplatneniVysledku
n15:2013
n3:svazekPeriodika
73
n3:tvurceVysledku
Klein, Petr Papa, E. Medri, V. Dědeček, Jiří Vaccari, A. Landi, E. Benito, P.
n3:wos
000317798600009
s:issn
0169-1317
s:numberOfPages
9
n10:doi
10.1016/j.clay.2012.09.027