STANDARD ENTHALPIES OF FORMATION OF SOME PRASEODYMIUM ALLOYS BY HIGH-TEMPERATURE DIRECT SYNTHESIS CALORIMETRY

Authors
GUO QT KLEPPA OJ
Citation
Qt. Guo et Oj. Kleppa, STANDARD ENTHALPIES OF FORMATION OF SOME PRASEODYMIUM ALLOYS BY HIGH-TEMPERATURE DIRECT SYNTHESIS CALORIMETRY, Metallurgical transactions. B, Process metallurgy, 25(1), 1994, pp. 73-77
Citations number
12
Categorie Soggetti
Metallurgy & Mining
Journal title
Metallurgical transactions. B, Process metallurgy → ACNP
ISSN journal
03602141
Volume
25
Issue
1
Year of publication
1994
Pages
73 - 77
Database
ISI
SICI code
0360-2141(1994)25:1<73:SEOFOS>2.0.ZU;2-T
Abstract
The standard enthalpies of formation of eight Pr alloys were determine d by direct synthesis calorimetry at 1473 +/- 2 K. The following value s of DELTAH(f)-degrees (kJ/g atom) are reported: PrNi5, -(25.6 +/- 1.0 ); PrRu2, -(16.9 +/- 1.5); PrRh2, -(60.4 +/- 1.7); PrPd, -(78.8 +/- 2. 5); PrPd2, -(82.7 +/- 3.1); PrIr2, -(70.7 +/- 2.8); PrPt, -(103.4 +/- 2.7); and PrPt2, -(93.5 +/- 2.4). The results are compared with data f rom available literature for some of the Pr alloys and with predicted values from the model of Miedema et al.