Material A: Lecture 3- Crystallography

Why is understanding crystallography important in materials engineering?

Understanding crystallography is crucial in materials engineering for tailoring, material properties to specific applications, Direction and plane indices help engineers determine crystallographic features’ orientation, design materials with customized properties, study defects, analyse grain boundaries, and conduct failure analysis

What is the significance of allotropic or polymorphic transformations in materials science?

Allotropic or polymorphic transformations involve an element existing in different crystal structures under varying temperature and pressure conditions. This phenomenon affects the material’s physical properties including its volume, influencing its behaviour and applications.

How do Miller indices contribute to crystallography?

Miller indices are a notation system used in crystallography to represent directions and planes within a crystal lattice. They provide a concise and standardized way to describe the orientation of crystallographic features, which is crucial in materials engineering and design

What do Miller indices represent for directions in a crystal lattice?

Miller indices for directions in a crystal lattice indicate the relative position and orientation of a particular direction within the lattice. They provide a standardized notation for describing the path along which atoms are arranged

Are planes or directions and their negative identical in Miller indices notation?

In Miller indices notation, planes and their negatives are considered identical because they are parallel. However, directions and their negative are not identical. as they represent two vectors with opposite directions