Carbon fiber
Carbon fiber is defined as a material that consists of
fibers with a diameter of about 510 micrometers, and it consists of carbon
atoms connected to each other to form a long chain, so that the atoms are
linked to each other in the form of crystals that are parallel to the
longitudinal axis of the fibers, and this gives it a high percentage of
strength and size, and in The article will discuss the most important features
and characteristics of carbon fibres.[1]
Carbon fiber properties
Usually several thousand carbon fibers are assembled
together to form a bundle that is used singly or in the form of a fabric, so
carbon fiber is considered a strong and light material, and has the following
characteristics:[1][2]
1.
High Hardness: Carbon fibers
are tougher than steel, but lighter than steel, which makes them ideal for use
in a wide variety of equipment.
2.
High tensile strength: Tensile
strength is referred to as the maximum strength that a solid material can
withstand before it fails or breaks, and it depends on the length and thickness
of the metal piece. This is an ideal material for manufacturing parts and
equipment.
3.
High resistance to chemicals: Carbon fiber is
characterized by its high resistance to chemicals when exposed to it, in
addition to its resistance to interaction with other materials, for example,
iron is subject to oxidation that causes it to rust, while carbon fibers are
resistant to such interactions.
4.
High temperature tolerance: Carbon fiber
can withstand high temperatures, due to its high melting temperature compared
to many other metals such as iron and steel, which also makes it one of the
materials that engineers prefer to use in various applications.
5.
Low thermal expansion coefficient: The thermal
expansion coefficient is the amount of increase in the length and volume of the
material when exposed to heat, and one of the properties related to carbon
fiber is that it has a low thermal expansion coefficient, when a particular
piece made of carbon fiber is exposed to heat, the distance it expands will be
very short .
6.
Electrical conductivity: Carbon fiber
can conduct electricity, and its conduction of electricity is improved by
adding some other materials, and it is able to generate electricity under the
influence of magnetic fields, but compared to other metals such as copper,
silver and aluminum, the electrical conductivity of carbon fibers is
significantly low for its efficient use. in practical applications.
7.
Resistant to combustion: Carbon fiber is
classified as a non-flammable material, so if it is exposed to a flame, it can
eventually oxidize, but when the source of the flame is removed from it, it
will not ignite, and because it is used in the manufacture of components such
as epoxy and plastic, its tolerance to high heat And its resistance to
combustion is one of its most prominent characteristics.
8.
Physical properties of carbon
fibers: Carbon fibers also have many physical properties, including the
following:[2]
·
The carbon fiber has a black
colour.
·
It has a melting point of 3697
degrees Celsius.
·
It has a boiling point of 4200
degrees Celsius.
·
Its density is 2.267 g/cm³.
·
It has a thermal conductivity of
1.65 W/cm.°C.
Carbon fiber uses
There are many uses and practical applications of carbon
fiber, and the most important of these uses are the following: [3]
1.
Bicycle industry: Bicycles made
using carbon fiber are characterized by their high durability, resistance to
stress, and light weight, so they are considered one of the favorite bikes for
many people.
2.
The exterior car body industry: What
distinguishes the exterior car bodies made of carbon fiber is its high
durability, and it also has the advantage of reducing the weight of the car
body, and this is the thing that is popular with car manufacturers.
3.
Aircraft interior components: When talking
about the aircraft industry, one of the most important things is durability and
light weight. These characteristics are precisely provided by carbon fiber, so
it is used in the manufacture of aircraft interior components such as walls and
door linings.
4.
The external structure of the
radar devices: Carbon fiber gives strength, durability and lightness
when used in the manufacture of the external structure of military radar
devices, which are usually huge in size, as this helps to reduce the weight of
these devices to facilitate transportation, in addition to the durability of
their external structure.
5.
Scientific instrumentation and
equipment: Carbon fiber has become a popular material in the manufacture of
measuring instruments and scientific equipment due to its stability and low
coefficient of thermal expansion.
Reference
1.
"WHAT
IS CARBON FIBER?", innovative composite engineering, Retrieved
5/1/2022. Edited.
2.
"Carbon Fiber", american elements, Retrieved
5/1/2022. Edited.
3.
"Carbon fiber
applications", dragon plate, Retrieved 5/1/2022. Edited.
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