ACTIVATION ENERGY IN NIOBIUM DIFFUSION IN ITS OXIDES (in Russian)
Journal Article
·
· Izv. Sibirsk. Otd. Akad. Nauk SSSR
OSTI ID:4122024
Self-diffusion of niobium cations in Nb/sub 2/O/sub 5/, NbO/saub 2/, and NbO at 900 to 1100 deg C was studied using radioactive tracers. It was shown that the activation energies of cation migration processes in Nb/sub 2/O/sub 5/ and NbO/sub 2/ are close to each other (E == 52 to 53 kcal) and almost twice that of NbO (E = 29.6 kcal). Small admixtures of TiO/sub 2/ and Na/sub 2/O do not influence the mobility of Nb/sup 5+/ in Nb/sub 2/O/sub 5/. (R.V.J.)
- Research Organization:
- Ural Division of the Academy of Sciences, Sverdlovsk, USSR
- NSA Number:
- NSA-18-005273
- OSTI ID:
- 4122024
- Journal Information:
- Izv. Sibirsk. Otd. Akad. Nauk SSSR, Journal Name: Izv. Sibirsk. Otd. Akad. Nauk SSSR Vol. Vol: No. 7
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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