THERMODYNAMIC STABILITIES OF LN(2)BAO(4) (LN=ND, SM, EU EU OR GD) BY CAF2-BASED EMF MEASUREMENTS

Authors
SUBASRI R SREEDHARAN OM
Citation
R. Subasri et Om. Sreedharan, THERMODYNAMIC STABILITIES OF LN(2)BAO(4) (LN=ND, SM, EU EU OR GD) BY CAF2-BASED EMF MEASUREMENTS, Journal of alloys and compounds, 274(1-2), 1998, pp. 153-156
Citations number
16
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
274
Issue
1-2
Year of publication
1998
Pages
153 - 156
Database
ISI
SICI code
0925-8388(1998)274:1-2<153:TSOL(S>2.0.ZU;2-T
Abstract
The standard Gibbs' energies of formation (Delta G(f,ox)degrees) of Ln (2)BaO(4) (Ln=Nd, Sm, Eu or Gd) with respect to the binaries Ln(2)O(3) and BaO were determined by a high temperature CaF2-based emf method w ith BaZrO3\ZrO2\BaF2 as the reference electrode and Ln(2)BaO(4)\Ln(2)O (3)\BaF2 as the test electrodes over the temperature range 900-1175 K. These ternaries were found to be of relatively similar stability as s een from the values of -93, -110, -98 and -97 kJ mol(-1) for Delta G(f ,ox)degrees of Nd, Sm, Eu or Gd analogs at an interpolated temperature of 1000 K. (C) 1998 Published by Elsevier Science S.A.