Standard enthalpies of formation of yttrium gallides by high temperature reaction calorimetry

Authors
Babu, R Nagarajan, K Venugopal, V
Citation
R. Babu et al., Standard enthalpies of formation of yttrium gallides by high temperature reaction calorimetry, J ALLOY COM, 311(2), 2000, pp. 200-206
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF ALLOYS AND COMPOUNDS
ISSN journal
09258388 → ACNP
Volume
311
Issue
2
Year of publication
2000
Pages
200 - 206
Database
ISI
SICI code
0925-8388(20001026)311:2<200:SEOFOY>2.0.ZU;2-Y
Abstract
The standard enthalpies of formation (Delta(f)H(298.15)(0)) of Y5Ga3, YGa a nd YGa2 at 298.15 were determined by high temperature liquid gallium soluti on calorimetry to be -59.6+/-3.6, -68.9+/-2.8 and -64.4+/-2.5 kJ gatom(-1) respectively. The enthalpy of formation of YGa2 at 1125 K was determined by using precipitation calorimetry, to be -61.8+/-2.8. The partial enthalpy o f solution of yttrium in liquid gallium at infinite dilution (Delta (H) ove r bar(y)(x)) was determined to be -184.4+/-5.3 kJ gatom(-1). (C) 2000 Elsev ier Science S.A. All rights reserved.