Pole figures Flashcards
How do you describe texture in pole figures?
Stereographic projections
How do you represent the crystal on the surface of a sphere?
1) place the crystal in the center of a sphere, The c axis is vertical, the b axis points to the east
2) Draw the normal to each face. Displace the normal until it intersects the center C of the sphere
3) Mark the intersection D of the normal with the north hemisphere
4) connect the intersection point D with the south pole S of the sphere
5) the intersectionP of the connecting line DS with the equatoral plane of the sphere represents the projection of the face
What does the (001) sphere look like?
On tablet
What are the most used stereographic projections for cubic crystals?
(001), (011) and (111) centered
How are planes plotted?
Planes are plotted as circular lines
How are directions plotted?
Directions are plotted as points
What is the angle between the trace and pole of the same plane?
90 degrees
