Question

Electron backscattered diffraction is a technique based on?

• A. Optical microscopy
• B. Scanning electron microscopy
• C. Atomic force microscopy
• D. X-ray diffraction

Hint:

In electron backscattered diffraction (EBSD), electron backscattering from the sample's surface provides detailed crystallographic information, which is crucial for material characterization at the microstructural level.

Answer 1

The Correct Option is B

Electron backscattered diffraction (EBSD) is a technique primarily used in scanning electron microscopy (SEM). It is a microstructural characterization technique that uses the backscattering of electrons to study crystallographic information of materials. EBSD provides high-resolution data on grain orientation, phase identification, and texture in a material.
The SEM works by scanning a sample with a focused beam of electrons. Some of these electrons are backscattered, and their diffraction pattern is recorded. This diffraction pattern provides valuable information about the crystal structure of the material. This technique is widely used in materials science for the analysis of metals, ceramics, and minerals.
The other techniques listed are not related to electron backscattering:
- Optical microscopy involves the use of light to view objects, but it does not provide crystallographic data like EBSD.
- Atomic force microscopy (AFM) is a type of scanning probe microscopy that provides topographic data at the nanoscale but does not analyze electron diffraction.
- X-ray diffraction (XRD) is used to study the crystal structure of materials but does not involve backscattered electrons as in EBSD.
Thus, the technique of electron backscattered diffraction is based on scanning electron microscopy.