THE BEHAVIOR OF TANTALUM IN THE PRESENCE OF CO AND CO CO2 MIXTURES ATELEVATED-TEMPERATURES/

Authors
CHRYSANTHOU A GRIEVESON P
Citation
A. Chrysanthou et P. Grieveson, THE BEHAVIOR OF TANTALUM IN THE PRESENCE OF CO AND CO CO2 MIXTURES ATELEVATED-TEMPERATURES/, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 194(1), 1995, pp. 11-14
Citations number
8
Categorie Soggetti
Material Science
Journal title
Materials science & engineering. A, Structural materials: properties, microstructure and processing → ACNP
ISSN journal
09215093
Volume
194
Issue
1
Year of publication
1995
Pages
11 - 14
Database
ISI
SICI code
0921-5093(1995)194:1<11:TBOTIT>2.0.ZU;2-U
Abstract
A study of the carburization of tantalum was carried out by reacting i t with CO at temperatures in the range from 1073 K to 1573 K. Ln addit ion to Ta2C, Ta2O5 also formed as an intermediate product before full conversion to TaC. A thermodynamic analysis showed that such a complex reaction path was followed because the carburizing reactions generate enough CO2 to oxidize the metal. The reaction of tantalum with CO-CO2 gas mixtures was also investigated. The kinetics of reaction is discu ssed in terms of the reaction mechanisms and the reacting gas composit ion.