Physics for Electronics Engineering: Unit I: Crystallography
Crystalline Materials
Definition, Types, Examples
The materials in which the atoms are arranged in a systematic pattern (regular pattern) are known as crystalline materials.
CRYSTALLINE
MATERIALS
The
materials in which the atoms are arranged in a systematic pattern (regular
pattern) are known as crystalline materials.
In these materials, the arrangement of
atoms is in a periodically repeating pattern.
Single
and Poly Crystalline Materials
The crystalline material is either a single crystal or poly-crystal. In single crystal, the entire material consists of
only one crystal. (Fig. 1.1 (a))
In poly - crystal material, a collection
of many small crystals is separated by well-defined boundaries. (Fig. 1.1 (b))
The atomic arrangements of single
crystal and poly - crystal are shown in fig 1.1 (a) and (b).
The crystalline materials are made up of
either metallic crystals or non-metallic crystals.
Example
Metallic
crystals - Iron, copper, silver, aluminium,
tungsten, etc.
Non-metallic
crystals - Crystalline carbon, germanium, silicon,
crystallized polymers, etc.
Physics for Electronics Engineering: Unit I: Crystallography : Tag: : Definition, Types, Examples - Crystalline Materials
Physics for Electronics Engineering: Unit I: Crystallography
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Physics for Electronics Engineering
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