Synthesis of Uranium Nitride by a Mechanically Induced Gas–Solid Reaction
A high energy, low-temperature, ball-milling route was used to directly produce uranium nitride. Pure uranium metal particles (~100 μm) were ball milled under a 420 kPa nitrogen atmosphere for 24 h at ambient temperature to yield phase pure U2N3 powder as confirmed by X-ray diffraction and energy dispersive spectroscopy. The median particle size was measured to be approximately 6 μm.
Jaques, Brian J.; Marx, Brian M.; Hamdy, Abdel Salam; and Butt, Darryl P.. (2008). "Synthesis of Uranium Nitride by a Mechanically Induced Gas–Solid Reaction". Journal of Nuclear Materials, 381(3), 309-311. http://dx.doi.org/10.1016/j.jnucmat.2008.07.043