STANDARD ENTHALPIES OF FORMATION OF SOME THULIUM ALLOYS, TM-TEMPERATURE DIRECT SYNTHESIS CALORIMETRY(ME (ME=NI, RH, PD, PT), BY HIGH)

Authors
GUO QT KLEPPA OJ
Citation
Qt. Guo et Oj. Kleppa, STANDARD ENTHALPIES OF FORMATION OF SOME THULIUM ALLOYS, TM-TEMPERATURE DIRECT SYNTHESIS CALORIMETRY(ME (ME=NI, RH, PD, PT), BY HIGH), Journal of alloys and compounds, 248(1-2), 1997, pp. 185-191
Citations number
34
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
248
Issue
1-2
Year of publication
1997
Pages
185 - 191
Database
ISI
SICI code
0925-8388(1997)248:1-2<185:SEOFOS>2.0.ZU;2-N
Abstract
The standard enthalpies of formation of nine thulium alloys with late transition metals have been determined by direct synthesis calorimetry at 1400+/-2 K. The following values of Delta H-f degrees (kJ(mol atom )(-1)) are reported: TmNi5, -29.1+/-0.7; TmRh, -88.9+/-2.0; TmRh2, -73 .0+/-2.0; -92.6+/-2.0; Tm3Pd4, -93.0+/-1.7, TmPd3, -86.8+/-1.6, TmPt, -121.0+/-2.0; TmPt2, -112.4+/-3.1; TmPt3, -91.1+/-2.1. The results are compared with predicted values from the Miedema model and with availa ble literature data for TmPd and TmPt.