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Metallic Materials
What is a metallic material?
Metallic materials are probably one of the most
widely used materials through the ages due to hardness and structural
strength. However, when exposed to high temperatures, they become
'soft' and can be manipulated into a variety of forms. Metallic
materials are characterized by a crystalline structure in which
the atoms are arranged in an orderly manner.
Metallic materials can be either homogeneous such
as gold or silver or can be a mixture of elements such as those
found in alloys. For example, one common alloy is brass, which
is a solution of copper (Cu) and zinc (Zn).
***Can you pick out the parts of the car made
out of metallic materials? ***
***(insert pic of car with parts made of metallic
and non metallic materials) ***
Useful engineering properties of metallic materials
structural strength
hardness
thermal conductivity
electrical conductivity
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