OXIDATION OF TANTALUM IN CARBON DIOXIDE AND CARBON MONOXIDE.
Abstract
The oxidation behavior of tantalum in carbon dioxide and carbon monoxide has been investigated in the temperature range of 500 to 700C. The rate of reaction was determined by measuring a change in electrical resistance of the specimen. The phase and structure changes were examined by using x-ray diffraction and metallographic techniques. The reaction involved solution of dissociated oxygen and formation of oxides, TaOy, TaOz and Ta2O5. The initial parabolic oxidation by carbon dioxide was represented by the dissolution of oxygen and the subsequent linear oxidation was controlled by a phase boundary reaction. The parabolic oxidation by carbon monoxide was mainly associated with the dissolution of dissociated oxygen. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1964
- Accession Number
- AD0610494
Entities
People
- Fumihiko Saegusa