Thermodynamic properties and dissociation of SrLaGaO4

Authors
Novoselov, AV Ogorodova, LP Zimina, GV Pajaczkowska, A
Citation
Av. Novoselov et al., Thermodynamic properties and dissociation of SrLaGaO4, INORG MATER, 36(9), 2000, pp. 929-931
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
INORGANIC MATERIALS
ISSN journal
00201685 → ACNP
Volume
36
Issue
9
Year of publication
2000
Pages
929 - 931
Database
ISI
SICI code
0020-1685(200009)36:9<929:TPADOS>2.0.ZU;2-K
Abstract
The solution enthalpy of SrLaGaO4 in the 2PbO.B2O3 melt at 973 K was measur ed using a high-temperature Calvet microcalorimeter. The enthalpies of form ation of SrLaGaO4 from the constituent oxides and constituent elements were determined to be -96.8 +/- 5.9 and -2128.7 +/- 6.1 kT/mol, respectively. T he partial pressures of the vapor species over molten SrLaGaO4 at T-m = 179 3 K were evaluated. The equilibrium oxygen pressure at 1793 K was found to be 4.13 x 10(-2) Pa.