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Statements

Subject Item
n2:RIV%2F00216305%3A26210%2F07%3APU64439%21RIV11-MSM-26210___
rdf:type
n5:Vysledek skos:Concept
dcterms:description
Gadolinia-doped ceria (GDC) ceramics were prepared by mechanochemical synthesis of ceria and gadolinia (10mol.%) powders with subsequent uniaxial pressing and pressureless sintering. The mechanochemical synthesis was conducted in an attritor with different dispersion media: neutral (distilled water), basic (aqueous solution of ammonia), acidic (aqueous solution of propionic acid), and non-polar medium (xylene with stearic acid). The effect of suspension composition and attritor milling time on the sintering behaviour and ionic conductivity of GDC was studied. An attritor milling time of 3 to 6 hours was evaluated as the optimum milling time from the viewpoint of further sintering behaviour. Longer milling times resulted in nanometre-sized powders, whose sintering behaviour deteriorated due to powder agglomeration. The appearance of agglomerates in the non-polar medium was reduced. The ionic conductivity of the samples was evaluated by impedance spectroscopy and correlated with their microstructure. Gadolinia-doped ceria (GDC) ceramics were prepared by mechanochemical synthesis of ceria and gadolinia (10mol.%) powders with subsequent uniaxial pressing and pressureless sintering. The mechanochemical synthesis was conducted in an attritor with different dispersion media: neutral (distilled water), basic (aqueous solution of ammonia), acidic (aqueous solution of propionic acid), and non-polar medium (xylene with stearic acid). The effect of suspension composition and attritor milling time on the sintering behaviour and ionic conductivity of GDC was studied. An attritor milling time of 3 to 6 hours was evaluated as the optimum milling time from the viewpoint of further sintering behaviour. Longer milling times resulted in nanometre-sized powders, whose sintering behaviour deteriorated due to powder agglomeration. The appearance of agglomerates in the non-polar medium was reduced. The ionic conductivity of the samples was evaluated by impedance spectroscopy and correlated with their microstructure.
dcterms:title
Sintering of gadolinia-doped ceria prepared by mechanochemical synthesis Sintering of gadolinia-doped ceria prepared by mechanochemical synthesis
skos:prefLabel
Sintering of gadolinia-doped ceria prepared by mechanochemical synthesis Sintering of gadolinia-doped ceria prepared by mechanochemical synthesis
skos:notation
RIV/00216305:26210/07:PU64439!RIV11-MSM-26210___
n3:aktivita
n10:Z n10:P
n3:aktivity
P(OC 102), Z(MSM0021630508)
n3:cisloPeriodika
13-15
n3:dodaniDat
n14:2011
n3:domaciTvurceVysledku
n6:2422832 n6:2393476 n6:8842205 n6:1662198 n6:1078224
n3:druhVysledku
n17:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
450061
n3:idVysledku
RIV/00216305:26210/07:PU64439
n3:jazykVysledku
n12:eng
n3:klicovaSlova
Milling, Sintering, Ionic conductivity, Gadolinia-doped CeO2
n3:klicoveSlovo
n4:Gadolinia-doped%20CeO2 n4:Milling n4:Ionic%20conductivity n4:Sintering
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[17C804E480F7]
n3:nazevZdroje
Journal of the European Ceramic Society
n3:obor
n13:JH
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:projekt
n15:OC%20102
n3:rokUplatneniVysledku
n14:2007
n3:svazekPeriodika
27
n3:tvurceVysledku
Částková, Klára Zmeškal, Oldřich Cihlář, Jaroslav Maca, Karel Hadraba, Hynek
n3:wos
000248822800163
n3:zamer
n7:MSM0021630508
s:issn
0955-2219
s:numberOfPages
4
n18:organizacniJednotka
26210