OXIDATION OF NIOBIUM AND ITS LOW CARBIDE SYSTEMS (in Russian)
Journal Article
·
· Zhur. Neorgan. Khim.
OSTI ID:4154382
Intermediate oxidation products of Nb and NbC were andalyzed using powdered and 3mm specimens of Nb, NbO, NbO/sub 2/, NbC/sub 0.8/, and Nb/sub 2/C heated for 3 hrs at 300 deg C. X-ray pictures taken of NbO/sub 2/ NbO, and NbC/ sub 0.80/ oxidation exhibited sharp lines for the respective phases, while Nb/sub 2/C showed split, washed out lines with 101, 110, 112 indices. Spectral compositions of Nb/sub 2/ C/sub approximates 0.4/ are practically identical. The Nb/sub 2/C structure is also identical to the U/sub 2/C structure with elementary nucleus a = 5.00/sub 4/ kX, b = 4.57 kX, and c = 2.89/sub 7/ kX. (R.V.J.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-18-002283
- OSTI ID:
- 4154382
- Journal Information:
- Zhur. Neorgan. Khim., Journal Name: Zhur. Neorgan. Khim. Vol. Vol: 8
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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