The
discovery of metals changed the face of human life. It gave rise to the
creation of things such as utensils, tools, weapons, jewelry, and more. Though
these were made using stones and clay before, but metals added super strength
and longevity to them.
Features
Most
metals have the following physical characteristics:
- They are shiny.
- They are hard.
- They have a resistance to stretching.
- They have high melting or boiling points.
- They are dense, heavy for their size.
- They are usually good conductors of heat and electricity.
Various
metals have different properties. Some are used mainly to make jewelry, such as
gold and silver, while some, like copper, are used to make electrical wires
since it has excellent electricity conduction properties. Iron is a very hard
metal, and thus is used for making bridges or cars.
Some
metals change properties with change in temperatures. For example – mercury is
a liquid metal. It solidifies in low temperatures (at around -39 degrees) and
becomes a superconductor at the extremely low temperature of -268.8 degrees.
Properties
In
terms of usage, copper can be called a super metal. This is because:
1. It is strong.
2. It gels easily with devices, such as connectors.
3. It is resistant to corrosion.
4. It is an economical metal.
5. It is easy to mold and use.
6. It is ductile and malleable.
Cooper
is used to make wires and cables of many types. Over time, many permutations
and combinations of this wonder metal have cropped up, such as Tin Coated Copper Wire, Copper
Laminated Flexible Connectors, and more. This is because this metal can be
used in many different ways, and these new variations help in meeting the
requirements of some or the other application.
Benefits
A major benefit of copper wire is it requires
less insulation that aluminium. The reason behind this is that aluminium has
lower conductivity than copper and thus, to carry the same current, would have
to have a larger diameter. At the same time, copper has a higher thermal
conductivity than aluminium which allows for greater heat dissipation.
Copper’s strength proves it to be a sturdier
metal as compared to aluminium and that’s the reason why it is preferred over
it in wiring systems since it can undergo lots of pulling with stretching out.
That allows it to remain a safer metal due to better current carrying capacity,
better energy and better heat dissipation.
Another amazing aspect of this amazing metal
is that it is resistant to ‘creep’ – which is when metals deform under stress.
It is also impervious, to a large extent, to breakage. Yet another aspect of
copper is while it is strong, it is ductile as well. That is not usually the
case. In most instances, the stronger a metal is the lesser pliability it has.
Copper is rather easy to work with and that’s
the reason behind its popularity in most areas of industrial and domestic
applications.
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