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Statements

Subject Item
n2:RIV%2F00216275%3A25310%2F13%3A39896327%21RIV14-MSM-25310___
rdf:type
skos:Concept n12:Vysledek
rdfs:seeAlso
http://www.sciencedirect.com/science/article/pii/S0143720813000855
dcterms:description
Due to the outstanding stability and resistivity to dissolution agents of the compounds related to NaZr2(PO4)3, our attention has been focussed on CoZr4(PO4)6 and its performance as an inorganic pigment for coloration of ceramic glazes. Mixed cobalt zirconium phosphate has been prepared by a solid state reaction and a sol-gel method and was characterised (through thermal analysis, XRD, heating microscopy, SEM, VIS-spectrophotometry and lightfastness measurement) for the first time as a ceramic pigment. In order to reduce the cobalt content in the samples the series of Co1-xMgxZr4(PO4)6 (x = 0.25; 0.5) have also been prepared using a solid state reaction and were investigated with the same techniques. It was shown that a solid state reaction provides the formation of CoZr4(PO4)6 through a three component system stage (ZrP2O7, ZrO2 and CoP2O6/Co2P2O7), when employment of the sol-gel method leads to the direct formation of a CoZr4(PO4)6 phase at lower temperatures. During further thermal treatment, with an increase of the calcination temperature up to 1200-1300 degrees C, an additional phase of Zr2O(PO4)2 appears in the composition. A solid state reaction can be suggested as a preferable method for achieving enhanced thermal stability of this phosphate and the substitution of Co by Mg not only helps to reduce the content of Co in the sample compositions, but also to improve their thermal characteristics. Thus, the obtained results indicate that employment of the more complicated sol gel method does not provide any advantages at high calcination temperatures with respect to the phase composition, thermal stability, homogeneity and particle size distribution of the obtained samples and the conventional ceramic route does not deteriorate on the basis of these parameters. synthesis. Due to the outstanding stability and resistivity to dissolution agents of the compounds related to NaZr2(PO4)3, our attention has been focussed on CoZr4(PO4)6 and its performance as an inorganic pigment for coloration of ceramic glazes. Mixed cobalt zirconium phosphate has been prepared by a solid state reaction and a sol-gel method and was characterised (through thermal analysis, XRD, heating microscopy, SEM, VIS-spectrophotometry and lightfastness measurement) for the first time as a ceramic pigment. In order to reduce the cobalt content in the samples the series of Co1-xMgxZr4(PO4)6 (x = 0.25; 0.5) have also been prepared using a solid state reaction and were investigated with the same techniques. It was shown that a solid state reaction provides the formation of CoZr4(PO4)6 through a three component system stage (ZrP2O7, ZrO2 and CoP2O6/Co2P2O7), when employment of the sol-gel method leads to the direct formation of a CoZr4(PO4)6 phase at lower temperatures. During further thermal treatment, with an increase of the calcination temperature up to 1200-1300 degrees C, an additional phase of Zr2O(PO4)2 appears in the composition. A solid state reaction can be suggested as a preferable method for achieving enhanced thermal stability of this phosphate and the substitution of Co by Mg not only helps to reduce the content of Co in the sample compositions, but also to improve their thermal characteristics. Thus, the obtained results indicate that employment of the more complicated sol gel method does not provide any advantages at high calcination temperatures with respect to the phase composition, thermal stability, homogeneity and particle size distribution of the obtained samples and the conventional ceramic route does not deteriorate on the basis of these parameters. synthesis.
dcterms:title
New Purple-Blue Ceramic Pigments Based on CoZr4(PO4)6 New Purple-Blue Ceramic Pigments Based on CoZr4(PO4)6
skos:prefLabel
New Purple-Blue Ceramic Pigments Based on CoZr4(PO4)6 New Purple-Blue Ceramic Pigments Based on CoZr4(PO4)6
skos:notation
RIV/00216275:25310/13:39896327!RIV14-MSM-25310___
n12:predkladatel
n17:orjk%3A25310
n3:aktivita
n16:I n16:P
n3:aktivity
I, P(EE2.3.30.0021)
n3:cisloPeriodika
3
n3:dodaniDat
n9:2014
n3:domaciTvurceVysledku
n5:5079322 n5:7051425 n5:7670745 Gorodylova, Nataliia Oleksandrivna n5:6868983
n3:druhVysledku
n21:J
n3:duvernostUdaju
n8:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
91664
n3:idVysledku
RIV/00216275:25310/13:39896327
n3:jazykVysledku
n15:eng
n3:klicovaSlova
Cobalt; Sol-Gel Method; Solid State Reaction; Ceramic Glaze; NZP Phosphate; Inorganic Pigments
n3:klicoveSlovo
n4:Cobalt n4:Sol-Gel%20Method n4:Inorganic%20Pigments n4:Ceramic%20Glaze n4:Solid%20State%20Reaction n4:NZP%20Phosphate
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[21429EA411B6]
n3:nazevZdroje
Dyes and Pigments
n3:obor
n19:CA
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:projekt
n20:EE2.3.30.0021
n3:rokUplatneniVysledku
n9:2013
n3:svazekPeriodika
98
n3:tvurceVysledku
Kosinová, Veronika Gorodylova, Nataliia Oleksandrivna Dohnalová, Žaneta Šulcová, Petra Bělina, Petr
n3:wos
000321169000012
s:issn
0143-7208
s:numberOfPages
12
n10:doi
10.1016/j.dyepig.2013.03.004
n13:organizacniJednotka
25310