No abstract

The crystal structure of WAllg. has been determined from powder samples. The unit cell is bodycentred cubic and a ----7.580 A. There are two WAll~ units per cell. The space group is T~-Im3.Two W atoms are placed in special positions 0, 0, 0, ~,1 :t2, '~ and 24 A1 atoms are in positions 24(g) with y ----0.184 and z = 0.309. The calculated density is 3.88 g.cm. -a.MoAll~ and (Mn, Cr)All~ (the G phase) are isomorphous with WA119. a ----7.573 i for MoAll~ and a = 7.507 /t, for (Mn, Cr)All~.

No abstract

No abstract