Synthesis of Dysprosium and Cerium Nitrides by a Mechanically Induced Gas–Solid Reaction
A high energy ball milling process was used to produce dysprosium nitride and cerium nitride powders at room temperature. Dysprosium and cerium metal flakes were milled in a 275 kPa nitrogen atmosphere for 24 h at ambient temperatures. X-ray diffraction confirmed the formation of phase pure dysprosium nitride and cerium nitride powders. The median particle size of the resultant dysprosium nitride was measured as 4 μm using a laser scattering technique. The particle size of the cerium nitride was not measured due to its reactive nature.
Callahan, Patrick G.; Jaques, Brian J.; Marx, Brian M.; Hamdy, Abdel Salam; Osterberg, Daniel D.; and Butt, Darryl P.. (2009). "Synthesis of Dysprosium and Cerium Nitrides by a Mechanically Induced Gas–Solid Reaction". Journal of Nuclear Materials, 392(1), 121-124.