Preparation of Uranium Nitrides from Uranium Tetrafluoride
- 1 January 1968
- journal article
- Published by Taylor & Francis in Journal of Nuclear Science and Technology
- Vol. 5 (12) , 643-647
- https://doi.org/10.3327/jnst.5.643
Abstract
A method has been developed for preparing UN by two-step reaction using UF4. As a result, the reaction of UF4 with Si and N2 has proved quite practical for obtaining U2N3. It was confirmed by chemical analysis and by X-ray diffraction analysis that single phase U2N3 was obtained at reaction temperatures above 1,200°C, and only 3% of the uranium was lost by evaporation even at 1,200°C. In the second reaction, the dissociation of U2N3 to UN in vacuum took place rapidly above 1,050°C, at which temperatures single phase UN was obtained, possessing a lattice constant of 4.888 Å.Keywords
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