Virtual Labs

Twinning in crystals can cause which of the following effects on the SADP in TEM?

a: Twinning does not affect the SADP. Explanation

Explanation

b: Twinning can result in double diffraction spots. Explanation

Explanation

c: Twinning leads to ring patterns. Explanation

Explanation

d: Twinning causes the diffraction spots to shift in position. Explanation

Explanation

How does the presence of amorphous regions in a crystalline material affect the SADP observed in TEM?

a: It causes the diffraction spots to become sharper. Explanation

Explanation

b: It leads to the appearance of a halo or diffuse ring. Explanation

Explanation

c: It enhances the intensity of the diffraction spots. Explanation

Explanation

d: It does not affect the SADP at all. Explanation

Explanation

Observation and interpretation of defect structure in cold rolled aluminium, copper and zinc