|Malleability||is a property of a material that
describes the ease with which its shape can be changed by hammering,
rolling, forging or pressing.
http://www.simegen.com/writers/lois ) is the most malleable material
followed by aluminium. Copper,
lead, tin and iron are also very malleable.
Heating a material causes an increase in its malleability. Impurities
however can cause a degradation in the malleability of some materials.
|Ductility||this is an ability of a material of
being plastically stretched (flow) without breaking or fracturing. Steel and
copper are highly ductile. The ductility of a material is measured by a
tensile test on a testing machine. Samples of
the material are held at both ends and a stretching force is applied until
the sample breaks.
|Elasticity||is the ability of a material to regain
its shape after being deformed. A rubber band is very elastic as it regains
its shape when tension is removed.
|Hardness||is the ability of a material to resist
being scratched or cut.
|Brittleness||extremely hard and therefore breaks
easily. ex glass.
|Toughness||is a measure of a material's ability
to absorb energy before fracture.
|Conductivity||ability to conduct heat, electricity
sound radiation etc. The material acts as a medium of transport.