o 0
 0o

 O^


0'
/


0


0 *
0'0


Figure 2.9


The Ni2Mo D022 phase;
a.) Ni2Mo Pt2Mo unit cell and b.) two
dimensional representation of Figure
2.9a showing 1.) FCC unit cell ( ),
2.) Pt2Mo unit cell (- -), and 3.) 420
FCC stacking sequence (-- -).


Q'a


 c
mat----


C'
-- k


/C


O0
00