Question

What is the difference between xrd pattern of amorphous and crystalline material?

Answer 1

A crystal is composed of periodically arranged in a 3D space. On the other hand amorphous materials do not possess that periodicity and atoms are randomly distributed in 3D space. The scattering of X-rays by atoms is the point to be considered in that case. When there is periodic arrangement of atoms the X-rays will be scattered only in certain directions when they hit the formed lattice planes ( formed by atoms). This will cause high intensity peaks ( the width of the peaks depends on other variables).

Amorphous phase: X-rays will be scattered in many directions leading to a large bump distributed in a wide range (2 Theta) instead of high intensity narrower peaks.