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Statements

Subject Item
n2:RIV%2F61388980%3A_____%2F13%3A00393992%21RIV14-AV0-61388980
rdf:type
n10:Vysledek skos:Concept
dcterms:description
DTA-TG and powder XRD analyses are used to study the occurring upon heating structural transformations of the %22glaserite%22 type zirconosilicate Na3HZrSi2O8 center dot 0.4H(2)O. The title compound undergoes energetically favored irreversible topotactic dehydration within the temperature range 200 and 400 degrees C. Essential structural transformations occur only after 700 degrees C, however, the phase composition of the run-product strongly depends on the conditions of thermal treatment. In all cases the predominant phase at 1000 degrees C is the NASICON type zirconosilicate - Na4Zr2Si3O12. The concomitant compound is either Na2SiO3 or the parakeldyshite synthetic analog - Na2ZrSi2O7. The mechanism of structural transformation and certain structural relationships are discussed in terms of the crystal chemical peculiarities of the initial compound and the run-products. DTA-TG and powder XRD analyses are used to study the occurring upon heating structural transformations of the %22glaserite%22 type zirconosilicate Na3HZrSi2O8 center dot 0.4H(2)O. The title compound undergoes energetically favored irreversible topotactic dehydration within the temperature range 200 and 400 degrees C. Essential structural transformations occur only after 700 degrees C, however, the phase composition of the run-product strongly depends on the conditions of thermal treatment. In all cases the predominant phase at 1000 degrees C is the NASICON type zirconosilicate - Na4Zr2Si3O12. The concomitant compound is either Na2SiO3 or the parakeldyshite synthetic analog - Na2ZrSi2O7. The mechanism of structural transformation and certain structural relationships are discussed in terms of the crystal chemical peculiarities of the initial compound and the run-products.
dcterms:title
Temperature-induced phase transformations of the %22glaserite%22 type zirconosilicate Na3HZrSi2O8 center dot 0 Temperature-induced phase transformations of the %22glaserite%22 type zirconosilicate Na3HZrSi2O8 center dot 0
skos:prefLabel
Temperature-induced phase transformations of the %22glaserite%22 type zirconosilicate Na3HZrSi2O8 center dot 0 Temperature-induced phase transformations of the %22glaserite%22 type zirconosilicate Na3HZrSi2O8 center dot 0
skos:notation
RIV/61388980:_____/13:00393992!RIV14-AV0-61388980
n10:predkladatel
n16:ico%3A61388980
n3:aktivita
n18:I
n3:aktivity
I
n3:cisloPeriodika
6
n3:dodaniDat
n6:2014
n3:domaciTvurceVysledku
n5:7933665
n3:druhVysledku
n4:J
n3:duvernostUdaju
n14:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
110276
n3:idVysledku
RIV/61388980:_____/13:00393992
n3:jazykVysledku
n9:eng
n3:klicovaSlova
inorganic compounds; Thermogravimetric analysis (TGA); X-ray diffraction; crystal structure
n3:klicoveSlovo
n8:X-ray%20diffraction n8:Thermogravimetric%20analysis%20%28TGA%29 n8:crystal%20structure n8:inorganic%20compounds
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[5D5FECDA8B47]
n3:nazevZdroje
Materials Research Bulletin
n3:obor
n12:CA
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n6:2013
n3:svazekPeriodika
48
n3:tvurceVysledku
Kostov-Kytin, V. Nikolova, R. Kerestedjian, T. Bezdička, Petr
n3:wos
000318462200004
s:issn
0025-5408
s:numberOfPages
5
n17:doi
10.1016/j.materresbull.2013.02.039