journal menu
![[Figure 9]](ks5137fig9mag.jpg)
|
|
Figure 9
(a) When superimposing two grains oriented in [221]tet exhibiting a misorientation angle of 60°, all sites are coincidence sites (shown by the larger circles). (b) Perpendicular to the (112)tet plane, the two-dimensional coincidence-site lattice has a (112)tet interplanar distance three times larger than that of the chalcopyrite-type structure; (a) and (b) together result in a Σ value of 3. (c) When superimposing two grains oriented in [110]tet exhibiting a misorientation angle of 71°, the two-dimensional coincidence-site lattice has a (112)tet interplanar distance three times larger than that of the chalcopyrite-type structure. (d) Perpendicular to the (220)tet plane in [001]tet, a grain rotated about [110]tet through 71° will show the same periodicity as the original grain. In this direction, [110]tet, the (001)tet interplanar distance (which is identical with the distance between each two planes of the coincidence-site lattice, not shown here) is equal to the lattice constant a of the chalcopyrite-type structure; (c) and (d) together also result in a Σ value of 3. |
![[Figure 9]](ks5137fig9.jpg)
 | JOURNAL OF APPLIED CRYSTALLOGRAPHY |
ISSN: 1600-5767
