Tetragonal phase in Al-rich region of U-Fe-Al system Academic Article uri icon


  • A new ternary aluminide U 2 FeAl 20 with the approximate composition Al–4.2 at% Fe–8.5 at% U was observed in the Al-rich corner of the U–Al–Fe system. Transmission electron microscopy and electron microdiffraction technique were used for characterization of the structure of this phase. It has a tetragonal unit cell with the parameters a = 12.4 A and c = 10.3 A and can be described by the space group I 4 ¯ 2 m .

publication date

  • January 1, 2005