The oxidation of niobium in air under, atmospheric pressure in the 600–700°C interval proceeds linearly; in this case, the process begins from a stage of parabolic oxidation to 650°C.
The nitriding of niobium specimens in a nitrogen-hydrogen mixture at 900°C significantly improves their oxidation resistance in air.
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Kiev State University. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 9, pp. 15–16, September, 1990.
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Girenkova, N.I., Yatsimirskii, V.K. & Skuratov, L.P. Effect of nitriding on the oxidation kinetics of niobium. Met Sci Heat Treat 32, 656–657 (1990). https://doi.org/10.1007/BF00693331
- Oxidation Resistance
- Oxidation Kinetic
- Interval Proceeds