Ti3Al2.25Nb.75 Shoemaker C B, Shoemaker D P, Bendersky L A Acta Crystallographica C46 (1990) 374-377 Structure of omega-Ti3Al2.25Nb.75 _database_code_amcsd 0010112 4.5554 4.5554 5.5415 90 90 120 P-3m1 atom x y z occ Biso Ti1 0 0 0 .88 .492 Nb1 0 0 0 .12 .492 Nb 0 0 .5 .68 .368 Al 0 0 .5 .32 .368 Al 1/3 2/3 .22449 .97 .669 Ti 1/3 2/3 .22449 .03 .669 Ti2 1/3 2/3 .71747 .590