X-Ray Diffraction | Crystal Structure | Why is XRD Important?

Why is XRD Important?

It’s useful for studying Crystal structure

This method have the details about

  • Grain size (or) Crystal size
  • Orientation of the crystal
  • Cold worked, Distorted and Internally stressed crystals
  • Re-Crystallization
  • Preferred orientation etc

Methods of Examining and Measuring the condition of Crystal Structure

  1. The Laue back reflection method
  2. The Rotating Crystal method
  3. The DeBye- Scherrer (or) Powder method:

The Laue back Reflection method:

It’s applicable to single crystals (or) poly-Crystalline masses.

When a beam of Mono chromatic (i.e. of Single Wavelength) X-Ray is directed as a narrow pencil at a specimen of a metal diffraction takes place at certain of the crystallographic planes.

03-Laue Method- X-Rays Sheild




The Rotating Crystal method:

It’s a useful method for determining angles and positions of planes.

Crystallographic planes are brought in to reflecting positions by rotating a crystal (Specimen) about one of it’s axis while simultaneously radially it with a beam of mono chromatic x-Rays.

If crystal orientation planes are known, the angles and directions can be calculated.



The DeBye- Scherrer (or) Powder method:

The narrow pencil of monochromatic X-Rays is diffracted from the powder and recorded by the photographic film as a series of lines of varying armature.

By the Bragg Equation:

nλ=2d Sinθ


λ– Wave length of X-ray

d- Spacing of the atomic planes

θ – Angle of reflection





  • Engine Speed Governors | Speed Control Governor | Speed Limiters
    Speed Governor The governor is a device which is used to controlling the speed of an engine based on the load requirements. Basic governors sense speed and sometimes load of a prime mover and adjust the energy source to maintain the desired level. So it’s simply mentioned as a device giving automatic control (either pressure...
  • Steering Systems | Hydraulic Power Steering Systems | Steering Wheel Parts
    STEERING The steering system in a vehicle is used to move the vehicle in a particular direction. This is a very important sub-system in a car without which it would be impossible for a vehicle to follow its desired path. The steering system can be used to steer all kinds of vehicles like cars, trucks,...
  • How LASER Beam Welding Works | LASER Beam Welding Process
    Laser Beam Welding setup: Laser beam welding is a welding process that uses a laser beam to melt and vaporize material. A ruby laser rod is used for machining process. Here the lasing material is in the form of a solid ruby rod (doped with chromium) with the end faces made parallel to each other...
  • History Of Laser Welding | Laser Light Beam
    Laser welding is a process that fuses two or more materials by using a laser as the source of heat. Laser welding is a very popular joining process. It can join materials of all types including metals, plastics and ceramics. Laser welding can be used for both external and internal welds, but it is most...
  • LASER Technology | Properties Of A LASER Beam
    What is a LASER Technology and how does it function? LASER stands for “Light Amplification by Stimulated Emission of Radiation”. A laser creates an extremely narrow beam of light that is helpful in various technologies and devices. Using an optical amplification process, lasers produce a coherent beam of light that may be used for a...